bluuebunny/crossref_metadata_2025 huggingface dataset:
Sizing System for Automatic Construction of Dress Shirt Patterns for Men
Authors: Choi Young Lim
Published: December 2012

This study aimed to devise a sizing system for dress shirts which can reflect the true characteristics of body shapes to develop an automatic design of dress shirt patterns for men in the future. In the existing sizing system based on neck circumference and cervical-to-wrist length, chest circumference is regarded as a secondary size dimension. However, in order to automatically design and produce male shirts, all dimensions of the human body must be accurately reflected, including chest circumference. Additionally, the drop is an absolutely necessary factor needed to design shirts that cover the torso. Therefore, this study concludes that a sizing system needs to be developed that takes into account chest circumference, cervical-to-wrist length, neck circumference, and drop all together.
A Simulated System of Battery Management System Based on SAE J1939 Protocol
Authors: Li Xu Ling , Sang Lin , Ye Jian Cheng , Zhang Xuan
Published: December 2012

The Battery Management System (BMS) is provided to manage battery packs and interface with other systems which require information of charging state. It designed and developed a simulated system of BMS which can communicate with the Electric Vehicle (EV) off-board charger via the SAE J1939 protocol. The system could build different battery models based on corresponding electrical parameters such as battery type, charging mode, nominal voltage, etc. It was applied in the protocol conformance testing through which to verify whether the design of off-board charger was conform to protocol specifications. The results show that the system runs well and reliable, greatly improves the development and test efficiency of off-board charger.
Study on Kinetics Behavior of the Lead Negative Electrode in the Lead Acid Flow Battery
Authors: Liu Xu Dong , Bi Xiao Guo , Niu Wei , Guan Xin , Dong Ying Nan
Published: December 2012

The chemistry system with negative graphite felt electrode and a single electrolyte, lead(II)in methanesulfonic acid, was described. The effects of treatment methods on kinetics and cyclic voltammetry behavior of Pb(II)/Pb couple were studied. The results show that the equilibrium electrode potential Pb(II)/Pb couple was -0.233V and the Pb(II)/Pb couple on graphite felt electrode had a good kinetics behavior. The cyclic voltammogram of graphite felt electrode showed that the oxidization and reduction peak potentials were -0.044V and -0.454V, respectively. The graphite felt treated with methanesulfonic acid had little oxidization and reduction peak potentials difference, and showed good electro-catalytic activity for Pb(II)/Pb couple.
Investigation on the Stability of Electrolyte in Vanadium Flow Batteries
Authors: Wen Yue Hua , Xu Yan , Cheng Jie , Liu Han Min , Cao Gao Ping
Published: December 2012

The effects of impurity, temperature, concentration of vanadium and sulphuric acid on the stability of electrolyte in vanadium redox flow batteries are studied. It is found that the sediment at positive electrodes is V2O5﹒1.6H2O , and the sediment at negative electrodes is V2(SO4)3﹒10H2O. Although impurities influence the stability of vanadium electrolyte to some extent, the matching relationship between the vanadium and H2SO4 concentration is more important . To avoid the sensitivity of vanadium electrolyte to impurities, the concentration of H2SO4 should be raised to a certain extent to confirm the stability of positive electrolyte. At the same time, a moderate vanadium concentration should be employed to assure the stability of negative electrolyte. From the viewpoint of increased stability , the prefered vanadium electrolyte composition is 1.5-1.6 M vanadium in 4-5M H2SO4 medium at temperature above -10°C besides the electrolyte with relatively high purity.
Experimental Study on Heat Storage and Release of the Phase Change Thermal Energy Storage Unit with Bushings between Double Flow
Authors: Xu Feng , Sun Yong , Tian Hai Chuan , Shi Yong Jiang
Published: December 2012

The phase change thermal storage unit With Bushings Between Double Flow was proposed through adopting a kind of new phase change material (PCM), JDJN-60. In addition, the corresponding heating experimental device was built. The study with regard to the heat storage characteristic of JDJN-60 was performed. The results show that the thermal energy storage process has three stages and there is a certain undercooling of the PCM. The effects of natural convection on the heat storage and release process are different. The natural convection accelerates the liquefaction process and alleviates the solidification process.
Preparation and Properties of Paraffin/Activated Carbon Composites as Phase Change Materials for Thermal Energy Storage
Authors: Zhao Liang , Fang Xiang Chen , Wang Gang , Xu Hong
Published: December 2012

Paraffin/activated carbon composites as phase change energy storage materials were prepared by absorbing paraffin into activated carbon. In composite materials, paraffin was used as phase change material (PCM) for thermal energy storage, and activated carbon acted as supporting material, ethanol was the solvent. A series of characterization were conducted to analyse and test the performance of the composite materials, and differential scanning calorimeter (DSC) results showed that the PCM-2 composite has the melting latent heat of 51.7 kJ/kg with melting temperature of 60.4°C. Due to the capillary and surface tension forces between paraffin and activated carbon, the leakage of melted paraffin from the composites can be prevented. In a word, the paraffin/activated carbon composites have a good thermal stability and can be used repeatedly.
Application of Cascade H-Bridge Inverter in Super-Capacitor Energy Storage System
Authors: Zhang Guo Ju , Cai Rong , Qi Lisa , Chen Yao , Yu Rong Rong , Pan Jiu Ping
Published: December 2012

This paper presents application of a CHB inverter based SESS. CHB inverter is characterized by cascade connection of multiple single-phase H-bridge (or full bridge) inverter cells. CHB inverter can make SESS flexible in circuit design, reduced voltage steps, and lower EMI. This paper presents circuit architecture design, modeling of CHB inverter based SESS, and control strategy focusing on power and energy balance control among Sub modules (SMs). The simulation results verify that the CHB inverter based SESS have a good performance in both fast power exchange and SM energy balance.
The Application of Super Capacitor in Scenery Generator Energy Storage System
Authors: Guo Yun Bo , Feng Deng Chao
Published: December 2012

Based on the comparison of battery energy storage system, super capacitor energy storage system, superconducting storage system, flywheel energy storage system, hybrid energy storage system composed by battery and super capacitor is proposed. By Analysis the performance of the system, it can be know that the system has characteristics of high specific power and high specific energy, and the battery and super capacitor device can be flexibly configured, which make energy storage system performance greatly improved. This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text.
The Battery Management System Applied in Smart Grid Energy Storage System
Authors: Li Bin , Zheng Min Xin , Qi Bo Jin , Du Xiao Wei , Yang Qing Sen
Published: December 2012

This paper describes the structure of energy storage system in smart grid, and analyzes the battery management system applied in the energy storage system. Battery temperature’s acquisition mode and the anti interference measures are studied. A battery state-of-charge (SOC) estimation method using the extreme accelerate correction method is proposed and the method is feasible to ensure the accuracy of SOC estimation. A battery voltage failure threshold table is constituted by extracting the important experimental data, and the safe using of the battery can be ensured by querying the threshold table. Now the battery management system could meet the needs of the actual operation of the battery energy storage system.
Research on Maglev Flywheel Energy Storage System for Electric Vehicle
Authors: Gao Hui , Zhai Chang Guo , Chen Liang Liang , Li Huai Liang
Published: December 2012

In order to improve the energy efficiency of electric vehicle (EV) power battery, and increase the start-up power of EV, a kind of maglev flywheel battery storage energy system is designed on EV, it is active suspension controlled at five degrees of freedom. The system suspension control principle is expounded, and the radial single freedom transfer function of the maglev flywheel is established combining with a digital PID control algorithm. The frequency spectrum characteristic of the transfer function and the flywheel rotor trajectory curve are simulated, and the 30000 r/min rotation experiment of the maglev flywheel battery prototype is realized. The experiment result shows that the maglev flywheel rotor may high speed and steadily spin, and has good energy storage ability. The maglev flywheel battery storage energy system can assist the EV power battery work, improves the battery charge and discharge properties and prolongs the service life of the motive power battery.
The Capacitive Behavior of Ni0.76Co0.24Ox Xerogels in KOH Solution
Authors: Cheng Jie , Tian Xin Jin , Wen Yue Hua , Xu Yan , Liu Han Min , Cao Gao Ping , Yang Yu Sheng
Published: December 2012

Ni0.76Co0.24Ox xerogels were formed by the sol-gel method followed by heat-treatment in air. The structure and properties of these materials were characterized by using X-ray diffraction, TEM and N2 (77K) adsorption. Electrodes with the xerogels were activated by cyclic voltammetry (CV) and their capacitive performance was evaluated by galvanostatic technique in 7 mol/L KOH solutions. A maximum specific capacitance of 904 F/g was obtained by constant current discharge with a current density of 2.0 mA/cm2 for the Ni0.76Co0.24Ox xerogels heat-treated at 250°C. High performance obtained indicates that these materials are promising electrode materials for supercapacitors.
Application Analysis of Chilled Water Storage Technology in the Transformation of Central Air Conditioning System
Authors: Liu Kai Jing , Zhang Qun Li , Li De Ying
Published: December 2012

This article introduces the specific application of central air conditioning chilled water storage technology in the actual central air conditioning engineered reconstruction. The author analyzes the energy-saving effect of application of central air conditioning chilled water storage technology and the economy of central conditioning renovation project. Operation cost comparison shows that water storage air conditioning system saves money more above 35% than conventional air conditioning system.
Benefit Assessment of Solar Photovoltaic Industry in China
Authors: Chang Yi , Gao Li Qiang , Gao Fu Gang , Li Fu Zhong
Published: December 2012

Because of shortages of energy and environmental carrying capacity limits, China will launch a solar photovoltaic energy. In 2011, the Chinese Government provides the strong policy for the development of photovoltaic industry, including “Inter solar China”, “The Twelfth Five-Year Plan of PV Industry” and so on. Due to the policy encouragement, by the end of 2011 projects completed formally is up to 2.7GW. China’s PV market has finally officially launched, it is expected that China will become the world's leading PV market in 2012. Therefore, this paper made an original creative analysis on comprehensive benefits of solar energy photovoltaic industry in China, and evaluated based on comprehensive evaluation system, and finally got economic, social and ecological benefits of the solar PV industry. The conclusions show the ecological optimal efficiency, so seeing the PV industry is to the benefit of future generations, the power industry of the future.
Research on Electric Energy Conversion of Maglev Flywheel Battery
Authors: Lv Xu Jun , Wu Hua Chun , Gong Gao , Hu Ye Fa
Published: December 2012

Flywheel energy storage has many advantages such as high specific energy, big specific power, small size, fast charge etc. This study describes the energy conversion control system of mag¬lev flywheel battery using PWM converter, established the model of control system. A circuit simulation of maglev flywheel battery electric energy conversion is proposed and discussed to verify the effectiveness of the design, which is of great significance for the development of flywheel energy conversion.
Capacity Optimization of Energy Storage Unit in Distributed Generation System
Authors: Guo Cai Yun , Wu Hong Bin
Published: December 2012

The photovoltaic(PV) generation model and the wind power generation model are introduced in this paper. Taking the best economy and reliability of system operation as the objective functions and the system power balance and battery storage performance indices as the constraints, the optimal capacity of battery energy storage can be determined with the Tabu search algorithm. With the example system, the simulation results show that the proposed models and the algorithm are correct.
Control of Battery Energy Storage Power Station for Power Balance
Authors: Meng Yan Jing , Zhang Xiao Juan , Chen Jing Wen , Zhu Yu Guo
Published: December 2012

It is an effective method to solve the contradiction between power supply and demand by using battery energy storage power station to adjust the load to keep balance. The kind and capacity of storage battery were selected based on its current application. Compared with multiple storage battery series-parallel connect modes, the paper proposed a connection mode using the combination of series and parallel. Designed a storage battery charge and discharge control system based on SVPWM technology, which includes hardware circuit and software design. Simulated the system through MATLAB and analyzed the wave shape, it proves that the circuit topology structure is validity and have a reliable control effect, and the energy storage power station achieves better load shifting effect on the power balance.
The Experimental Study of Water Storage Performance on Small Heat-Pump Energy Storage Air-Conditioner
Authors: Wang Fang , Wang Jing Yi , Liu Meng , Zhang Zhen Ya
Published: December 2012

Based on the performance of energy storage air conditioning system, a small heat pump water heat storage air conditioner was designed with some experiments in winter running. The experiments show that the heat storage system can improve inlet temperature of the refrigerating compressor effectively when proceeding heating mode, and the outlet temperature is also higher relatively; In the low-temperature heating condition, the maximum heating capacity can up to more than the rated heating capacity and the defrosting performance is better too; But the heat storage capacity of the system is quite limited for the thermal storage material is water.
Measurement and Verification of Injection Molding Machine Energy-Saving Reformation Effect
Authors: Wang He , Zhang Xue Fei , Tong Rui Ming , Li Tao Yong , Shi Meng Jie
Published: December 2012

The energy-saving effect of the injection molding machine energy-saving reformation project was measured in a factory. Based on the analysis of the project energy-saving principle, analyzed the energy-saving rate of the reformed injection molding machine in case of producing different products. The test results show that the active power saving rate is 50% under the load condition, the active power saving rate is more than 75% under the no-load condition and energy-saving effect is more obvious under the no-load condition. Finally, analyzed the power quality impact caused by the energy-saving equipment on the distribution network, put forward some suggestions for improvement.
Photovoltaic Power Generation Transient Modeling and Identifiability Analysis
Authors: Shi Tao , Gao Shan , Qu Linan
Published: December 2012

Parameter identification is the core of PV power generation modeling. In this paper, A model of PV power generation is established. It is based on the PV power generation control mechanism and suitable for electromechanical transient simulation of power system. The identifiability of model parameters is also analyzed. The study results show that: the model has a simple structure, when the input-output dynamic data is known, The model parameter can be identified.
A New Type Phase Change Energy-Saving Device for Building Field
Authors: Xie Yong Qi , Chi Peng Tao , Yu Jian Zu , Song Jun
Published: December 2012

The heat transfer enhancement in a latent heat energy storage device through embedment of copper foam (CF) is reported. The CF had a 96% porosity and the phase change material (PCM) was 25# paraffin. The CF and PCM were contained in a cuboid sample. A prototype test room was designed to numerically investigate the performance of the device. The melting and freezing process of the PCM and the day-night temperature of the room were observed. The results show that the tested totally melting time of the PCM is 8.72 hours during the daytime while the freezing time is 8.19 hours at night, and the phase change process could accomplish within 8-9 hours. The maximum temperature difference of the room is reduced 8.3°C. The room comfort could be significantly enhanced under the premise of less air conditioning energy consumption by applying the device.
Feasibility of CCHP System in Certain Large-Scale Public Building
Authors: Yang Chao , Ruan Ying Jun , Zhou Wei Guo , Wang Jian , Zhang Zhi Li
Published: December 2012

According to the information of a large-scale public building in Shanghai, annual hourly loads of cooling, heating and power are calculated separately on the basis of Hourly Load Apportionment Ratio Method. Based on load characteristics and local practical condition, three cases are proposed for further comparison and selection by PRUE, ESR, CRR and PBP, and then the optimal case is to be determined. Moreover, the impact of installed capacity and gas price on the effect of applying CCHP system would be discussed. The result shows that both hotel and office area are appropriate for utilizing CCHP system; the combination of electro-refrigerator and absorption refrigerator is more economically preferable; PBP increases at first and then decreases while the capacity of electric generator rises, and when the capacity of generator and refrigerator are 4000kW and 4500RT, the PBP is lowest; The PBP will be 3 to 5 years if the price of natural gas could be fixed between 2.5 Yuan/m3 and 3Yuan/m3, which is a remarkable indicator of economical efficiency.
Grey Prediction of WSN Feedback Value in Greenhouse
Authors: Cheng Wen Feng , Yang Xiang Long , Wang Li Ren
Published: December 2012

To improve the performance of greenhouse monitoring system based on WSN, an algorithm was proposed. By grey prediction of WSN current feedback values, the sampling values of the following variables can be predicted. The paper discussed the relation of grey prediction model dimension and the predicting precision, and the control effect was analyzed. This method solved the discrete and lagging problem, it will effectively save the battery energy of WSN node and reduce the energy consumption in greenhouse by improving system stability.
Experimental Study on Heat Pipe Heat Recovery Type of Fresh Air Ventilator
Authors: Sun Li Ying , Xiao Li Tao , Li Yi Tong
Published: December 2012

Have proposed a heat recovery of fresh air ventilator system form,which is based on the technology of refrigerant natural circulation named heat-pipe. Describes the working principle of the unit, designs a new type of heat recovery air ventilator test equipment,and carries out a experimental study on its running performance.Have come to the effect of air flow and the temperature difference between indoor and outdoor for the heat recovery rate. Experimental results show that this equipment has a high heat recovery efficiency and a good effect on energy-saving . Through experimenting on the performance, laying a foundation for further optimization of unit design.
Analysis of the Influence of Heater Terminal Temperature Difference on the Cycle Thermal Efficiency
Authors: Li Yong , Yin Xu
Published: December 2012

Heater terminal temperature difference is one of important equipment of thermal system, the influence of terminal temperature difference on thermal economy is great. The accurate calculation of terminal temperature difference influence on thermal economy is helpful to thermal system design, operation and maintenance work. This article took a 300MW steam turbine as an example, adopted the equivalent heat drop method to calculate various levels heaters terminal temperature difference influence on the live steam work load, circulation heat and cycle thermal efficiency.
Study on the Behavior Energy-Saving of the Heat Users of Central Heating System
Authors: Yang Hua , Yan Bing Hong , Sun Chunhua , Xia Guo Qiang
Published: December 2012

As one of the effective ways of building energy saving, behavior energy-saving has the positive promotion function regarding the heating energy saving for the heat users of central heating system. The effect of behavior energy-saving on the heating load characteristics of central heating systems was studied based on the present development of central heating metering technology. The study was promoted combined the theoretical analysis and questionnaire survey. At first, the influence factors of behavior energy-saving were analyzed. Then the questionnaire survey about the present situation of behavior energy-saving was carried out and the basic heating modes of heat users were summarized considering on heating mode, habits and customs and the family structure characteristics. The concept and mainly form of behavior energy-saving and behavior energy-saving rate of central heating system heat users were clear and definitude by study on the behavior energy-saving rate. Thus it has good coaching and promoting effect on the development of behavior energy-saving.
Experimental Study on the Air-Circle Temperature-Rising Technology with the Heat Exchanger
Authors: An Zhong Chang , Jin Lian Gan
Published: December 2012

The air-circle temperature-rising technology is the new technology that solves the antifreeze and deicing problems of ship decks. In order to make more use of the ocean energy and increase the temperature-rising effect, the heat exchanger was added in which the flowing air can be heated up by the warm seawater outside the windpipe. Experiment results showed that this amelioration could improve the temperature-rising effect of the air-circle temperature-rising technology. The conclusion offers theoretical and experimental basis for the air-circle temperature-rising technology based on the ocean energy.
Optimized Operation of 2×660 MW Piping-Main Scheme Circulating Water System
Authors: Li Yong , Li Jia Bei
Published: December 2012

The existing optimized operation of circulating water system does not suit piping-main scheme circulating water system with double-pressure condenser. The optimum vacuum of piping-main scheme should be defined as the vacuum which makes the difference between the sum of the two units’ added electric power and the circulating water pump power maximum. The plan of optimized operation of piping-main scheme circulating water system which is based on this kind of optimum vacuum was put forward. And a specific example of 2×660MW units was given, the power plant’s optimized operation mode of the whole circulating water system at difference conditions was obtained. The results show that the optimized scheme is correct and suit the piping-main scheme circulating water system, and the optimized operation can well improve the steam turbine economy.
Application of BP Neural Network to Short-Term-Ahead Generating Power Forecasting for PV System
Authors: Jiang Hao , Hong Li
Published: December 2012

A short-term generating capacity forecast model of a PV power station was proposed. The forecasting days were classified by the season and weather, and various neural network models were adopted to analyze the system. The radiation of PV power station was added to the model as an input parameter to improve the forecasting precision. The forecasting precisions based on the historical data of the actual PV power station in different seasons and weather were compared and analyzed. The results show that the proposed method can improve the forecasting precision of generating capacity.
Study on the Evaluation Method for Energy Saving and Emission Reduction Effect of Power Plant
Authors: Li Yong , Wang Jia Xin
Published: December 2012

Thermal power as a focus area for energy saving and pollution reduction, energy saving and environmental protection work is particularly important.This article mainly introduced principal components analytic method basic philosophy and principle, principal components analysis geometry significance, sample principal components deriving, overall principal components and nature, and using this method to known five power plant unit's actual movement when the pollutant emissions and the water used have carried on the quality synthetic evaluation. And gives the appraisal and the basic improvement opinion based on the analysis result to various power plants.The results showed that: The method eliminates the influence of subjective factors on the evaluation, obtain a comprehensive evaluation index which can be evaluated quantitatively.
A Design Method of Supersonic Separator Used in Natural Gas Liquefaction Process
Authors: Li Zeng Cai , Sun Heng , Guo Bao Ling , Liu Feng
Published: December 2012

It is feasible to obtain low temperature that can liquefy the natural gas using supersonic separator in a liquefaction process. This paper represented a design method of the supersonic separator used in natural gas liquefaction plant, including the design of the Laval nozzle, the design of the rectifier straight segment and the design of the diffuser segment. The size of each part and the appropriate shape can be gotten by the theoretical calculation. The design results of an experiment liquefaction device using supersonic separator is given. The work is helpful for the natural gas transportation in remote and low production gas field.
Effect of Annealing Temperature on Electrical Properties of ZnTe Layers Grown by Thermal Evaporation
Authors: Hsu Cheng Hsing , Tseng Ching Fang , Yu Yi Ting , Yang Pai Chuan , Lai Chun Hung , Lin Jenn Sen , Yang His Wen
Published: December 2012

The electrical properties of evaporated ZnTe films were investigated with emphasis on the effects of an annealing temperature from 600oC to 800oC by RTA technique. Crystallinity, carrier concentration, sheet resistance, and mobility are shown to be dependent on the annealing temperature. The highest carrier concentration and lowest sheet resistance are 7.9×1015 cm-3 and 9300 Ω/□ at an annealing temperature of 700oC, respectively. The mobility was found to vary from 20 to 50 cm2V-1S-1. The ZnTe thin films using thermal evaporation can find applications in solar cell or light emitting diodes
Preparation and Properties of PEDOT/PSS Conductive Polymer Blended with Graphene/PVDF
Authors: Lee Chin Jung , Tsai I Shou
Published: December 2012

Graphene has unique structure and excellent performance , It has good optical, thermal, mechanical properties and electrical conductivity. In this article , based on elaborating the structure , characteristic and preparation methods of the graphene , the modification of graphene in polymer composite was discussed and the development and research direction of the graphene/polymer composite were proposed. The conductivity of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with poly(4-styrenesulfonate) (PSS) blended with different ratios of graphene/PVDF (polyvinylidiene fluoride) solution was measured. After dryness, we found that an addition of graphene/PVDF solution lowered the resistance by three or four orders of magnitude when the concentration are 25wt% and 50wt% , among them the Gb50 has the best surface conductivity, the magnitude is about 1.43 S/cm, and then we found that the second onset degradation temperature of PEDOT/PSS membrane blended with graphene/PVDF was 75°C higher than that of without blended with graphene/PVDF. All kind of dispersion has been studied using a four-point probe conductive meter, X-ray diffractometry (XRD), fourier transform infrared (FTIR), thermogravimetric analysis(TGA) and scanning electrical microscopy (SEM) in order to discuss the surface resistance, the crystallinity, the chemical structure , the thermal properties and morphology of the PEDOT/PSS-graphene/PVDF film. Conductive PEDOT/PSS-graphene/PVDF membrane has good electrical properties and thermal stability , which can be used for the electrolyte of lithium battery.
Excess Heat Triggered by Electrical Current in a D/Pd Gas-Loading System
Authors: Wang Hong Yu , Tian Jian , Lu Xin
Published: December 2012

This article by palladium deuterium gas-solid experimental system design, combined with the DH1716A program-controlled DC stabilized current supply and Keithley 2700 data acquisition and recording system. In five different pressure, through current and 1.5A trigger condition, making experiments of deuterated Palladium chemical reactions within the system, resulting in dozens of Watts of thermal power, and repeat for the six-sixths.
Effect of Synthesis Process of Polyaniline for the Zn-PANi Secondary Batteries
Authors: Han Jia Jun , Cheng Jin Ning , Pan Feng Wen , Liu Xin Kui , Zhang Fang
Published: December 2012

The facters of molar ratio of aniline and ammonium persulfate ,aniline concentration, concentration of HCl , carbon species and different additives was studied on the yield and conductivity of polyaniline, also the coulomb efficiency and the cycle life of Zinc-PANi secondary battery. Results show that: the molar ratio of aniline and ammonium persulfate is 1:0.9, aniline concentration 0.12mol/L and the wooden actived carbon is 35% of the weight of aniline, the best value of conductivity and capacity are respectively 2.27S/cm and 121.5mAh/g.
Preparation of PET/PT Composite Film and Study of its Moisture Barrier Properties
Authors: Ren Wen Ming , Cheng Pei Fang , Liu Xue Feng
Published: December 2012

In order to improve the practical performance of common Cellophane as packaging material, PET/PT composite film were prepared by means of Dry Lamination, and the influence of temperature on water vapor permeation of composite films was investigated at the range of 20-50°C at 50% relative humidity. The results showed that the moisture barrier properties of common Cellophane were improved obviously by means of coating on the PET films and the water vapor transmission rate of composite films was increased with temperature increasing in the range from 20°C to 50°C，the relationship between water vapor transmission rate of the composite films and the temperature followed an exponential grow curve [y=1.3441exp (0.0597x)], correlation coefficient R is 0.9957.
Low Temperature Bleaching of Cotton with a Novel Cationic Activator
Authors: Li Yan Li , Liu Zhen Dong , Wang Xiao Ning
Published: December 2012

A new cationic bleach activator (CBA) N-[4-pyridmoniomethyl)benzoyl]caprolactam bromide (PBCB) was synthesized and evaluated in a hot peroxide bleaching process. The effects of time, temperature and the concentrations of hydrogen peroxide and activator on the bleaching of cotton fabric were investigated using an orthogonal experimental method. The optimal bleaching process of PBCB-activated peroxide system was 5g/L H2O2, 0.5g/L CBA, 40°Cand 45min dwell time under neutral pH, with which a whiteness equivalent to that of the conventional-bleaching system was achieved, but the PBCB system resulted in almost no fiber damage based on fabric strength.
Hydrothermal Oxidation of Industrial Alkali Lignin for Producing Small Molecular Organic Acids
Authors: Zhang Guang Yi , Zhang Ju Wei , Yu Jian , Wang Yin
Published: December 2012

To control the serious pollution caused by alkaline pulping in paper industry and utilize alkali lignin – the main organic ingredient residing in black liquor, an experimental research on hydrothermal oxidation of industrial alkali lignin for producing small molecule organic acids (mostly formic and acetic acids) was conducted using batch reactors. The results showed that the yields of acetic acid almost entirely increased and then decreased with oxygen supplies, reaction times and reaction temperatures, while the yields of formic acid fell in a narrow range of ~ 4% irrespective of all the hydrothermal conditions. A highest total yield of formic and acetic acids of 23.0% was achieved at the conditions of 300 °C, a 100% oxygen supply and a 60 s reaction time, and at the same time a highest yield of acetic acid of 20.3% was obtained. Based on the products recognized, the main pathways for producing small molecular organic acids, particularly formic and acetic acids were discussed.
Preparation of Y Zeolite-Based Catalysts and their Catalytic Cracking Performances of Venezuelan Heavy Oil
Authors: Zeng Peng Hui , Shen Bao Jian , Ji Sheng Fu , Liang Yun , Meng Xiang Hai
Published: December 2012

Five kinds of modified Y zeolite-based fluid catalytic cracking (FCC) catalysts were prepared. The N2 adsorption desorption and NH3 temperature-programmed-desorption (NH3-TPD) were used to investigate the pore structure and acidic properties of the catalysts. The effects of pore structure and acidic properties of catalysts on the catalytic cracking performance of Venezuelan heavy oil were carried out using an advanced cracking evaluation unit. The results of N2 adsorption desorption and NH3-TPD show that CAT-A and CAT-B catalysts with rundle pore distribution have a similar pore sizes and acidSubscript textSubscript textic properties. The catalytic cracking results show that the acidic properties and the pore distribution of the catalysts have obvious effects on the conversion and product distribution. The light oil yield and total liquid oil yield can reach 58.75wt% and 73.83 wt%, respectively, under reaction temperature of 520°C.
XAS Study on Calcination Effect of Silica Supported Cobalt Catalysts for Fischer-Tropsch Synthesis
Authors: Chotiwan Siwaruk , Bungmek Waritsara , Prangsri-Aroon Sanya , Viravathana Pinsuda
Published: December 2012

The precalcined and calcined silica supported cobalt catalysts at 15, 20, and 25%Co were investigated by X-ray Absorption Spectroscopy (XAS) including the X-ray absorption near edge structure (XANES) and the extended X-ray absorption fine structure (EXAFS). The results showed the phase of Co(NO3)2.6H2O in all precalcined catalysts, which corresponded to the XRD measurement. When increasing the amount of cobalt in the precalcined catalysts, there was the presence of ordered Co(NO3)2.6H2O phase. After calcination in Ar at 600°C for 6 h, the Co3O4 phase was presented in all calcined catalysts. For the catalytic performance testing, the selected 20%Co/Aerosil_wi_calcined catalyst was reduced at 450°C in H2 and operated at 190°C with a total pressure of 10 bar and H2/CO flow rate of 20:10 ml/min for Fischer-Tropsch synthesis. After reaction testing, the used 20%Co/Aerosil_wi catalyst showed the main phase of Co3O4. The result showed high methane selectivity at the beginning of reaction. By increasing of reaction time, the methane selectivity tended to decrease, whereas the C2-C4 and C5+ selectivity was increased.
The Researches on Upgrading of Heavy Crude Oil by Catalytic Aquathermolysis Treatment Using a New Oil-Soluble Catalyst
Authors: Qin Wen Long , Xiao Zeng Li
Published: December 2012

The aquathermolysis of Shengli heavy oil during steam stimulation was studied by using a new oil-soluble catalyst for the reaction in this paper. The laboratory experiment shows that the viscosity reduction ratio of heavy oil is over 75% at the circumstances of 200°C, 24 hs, 0.3 % catalyst solution. The viscosity of upgraded heavy oil is changed from 25306mPa•s to 6175mPa•s at 50°C. The chemical and physical properties of heavy oil both before and after reaction were studied by using column chromatography (CC) analysis and elemental analysis (EL). The percentage of saturated hydrocarbon、aromatic hydrocarbon and H/C increased, and resin、asphalt and the amount of element of S,O and N decreased after the aquathermolysis. The changes of the composition and structure of the heavy oil can lead to the viscosity reduction and the improvement the quality of heavy oil. The results are very useful for the popularization and application of the new technology for the in situ upgrading of heavy oil by aquathermolysis.
The Synthesis of Cross-Linked Poly Aspartic Acid and Study on Control of the Calcium Carbonate Crystal Morphology
Authors: Jia Ruo Kun , Fang Li Zhi , Lin Song Zhu
Published: December 2012

The intermediates polysuccinimide were synthesised by Maleic anhydride. Through the ring-opening reaction of polysuccinimide by ethylenediamine, which followed by alkaline hydrolysis and aminolysis, obtained cross-linked poly aspartic acid has a flaky structure. Using of its reticular, controling on the morphology of calcium carbonate crystals in the water. Compared with poly aspartic acid, the dissolution of the cross-linked product has been reduced by nearly 100 times. Static scaling inhibition experiments confirm that, cross-linked poly aspartic acid not only has the complexing capacity nature of the calcium in water, but also can control the growth of calcium carbonate scale to spherical, which has a special nature of lattice distortion.
Modeling Analysis of Shell, Texaco Gasification Technology’s Effects on Water Gas Shift for Fischer-Tropsch Process
Authors: Yu Ge Wen , Wang Yan Ming , Xu Yuan Yuan
Published: December 2012

This work analyzes different gasification processes affect on WGS process with Excel-Aspen Plus based models.in large scale production. Results show that Shell gasifier can obtain higher (CO + H2)/syngas ratio and higher thermal efficiency but lower H2/CO ratio than Texaco gasifier. However, both of H2/CO ratios are below 1.0 and WGS reaction has to carry out to prepare for the Fischer-Tropsch synthesis. The simulation shows Shell syngas does not offer adequate H2O molecules for WGS shift reaction and it can be supplied by the 5.2MPa steam generated from the boiler of the Shell gasification process. Texaco syngas has sufficient H2O molecules to meet the need of this reaction. The overall thermal efficiency of the Texaco-WGS is lower than that of the Shell-WGS.
The Model of Load Curtailment Optimization in Power Energy Security Evaluation
Authors: Jiang Li Min , Yan Hua Guang , He Gui Xiong
Published: December 2012

In the process of power Energy Security evaluation, the load curtailment optimization is the crucial key step, which also supplements and perfects the static safe evaluation. In this paper, the LCO’s linear program algorithm is deduced on the basic mathematics model foundation, and programs in Visual Fortran environment. The IEEE bus-5 results in various states are presented to verify the load cutting optimization model.
Geographic Concentration of Korean Oil Imports and the Implications
Authors: Ma Ping , Jiang Hui , Hong Yu
Published: December 2012

This paper analyzes the changes of geographic concentration of Korean oil imports as well as its interactive relationship with oil security and oil cost. We employ Herfindahl-Hirschman index to capture the changing geographic concentration of both crude oil imports and petroleum product imports. Using data ranging from 1970 to 2009, we document that the geographic concentration of oil is closely related to both energy security and energy cost. Geographical dispersion of oil imports may improve energy security but usually generates higher energy cost. We thus argue that there can be an optimum level of geographic concentration of energy imports. Both oil security and economic efficiency should be taken into consideration when making national energy strategies.
Comparative Study on Electric Vehicle Charging Standards at Home and Abroad
Authors: Tang Wu Wu , Wu Yu Ming , Qin Jian
Published: December 2012

Charging infrastructure is the fundamental conditions of electric vehicles(EV)’s application and dissemination, and advanced charging standards can guide and regulate the harmonious development of EV and infrastructure. In this paper, plenty of and latest EV charging standards were collected at home and abroad, which were compared in different classifications, then the standards differences were analyzed in term of relative merits to provide reference for the future development of EV charging standards in China.
The Internet of Things for Electric Vehicles: Wide Area Charging-Swap Information Perception, Transmission and Application
Authors: Gao De Quan , Zhang Yi Ying , Li Xiang Zhen
Published: December 2012

Electric vehicle (EV) is an emerging type of mobile intelligent power consumption device and energy storage terminal in Smart Grid. In order to solve automation and intelligence support problem for wide area electric vehicles charging-swap services, we make full use of technology. we analyze practical demands of electric vehicle charging-swap networks operation service scenarios and define the Internet of Things (IoT) architecture for electric vehicles for wide area unified operations and monitoring management in this paper. Then, we design a perception integration model for battery packs real-time information collection in mobile scenes. We also present a multimode collaborative communications method to implement large scale interconnection and intercommunication among electric vehicles, charging-swap devices and operation center. Finally we develop operations and monitoring platform demo for cross-regional electric vehicle charging-swap networks management using Geographic Information Systems (GIS) and Service-Oriented Architecture (SOA).
Study on State of Health Estimation Algorithm for Lithium Power Battery Used on Pure Electric Vehicle
Authors: Liu Hong Wei , Xu Wen Jing , Guo Chong
Published: December 2012

With the continuous development of pure electric vehicles, lithium-ion battery is getting more attention. The SOH is characterized by the capacity of battery charging and discharging, so to meet the national regulations, it is necessary to detect it. This article focuses on estimating the current SOH of the battery based on voltage characterization when charging, and realizes real-time detection of health status in remote monitoring system.
Study on Different Capacity of Photovoltaic Power Generation Project Compares
Authors: Wang Kai Bin , Liang Rong Jin , Xu Zi Hua , Ren Zun Yi
Published: December 2012

Development and utilization of solar and other renewable resources is the development trend on energy. Belong to one of the national industrial policy to support the strategic emerging industries to optimize the power structure, Energy conservation, environmental protection, the development of low-carbon economy has a positive effect. Different monolithic capacity of photovoltaic power generation project, in construction investment, the basic difference between the little and then be able to estimate the construction of photovoltaic power generation project investment, preliminary determination of investment projects in economic rationality.
Study on the Reuse of Electric Vehicle Batteries in Energy Storage System
Authors: Wu Yu Ming , Zhao Ming Yu , Lu Zhi Yuan
Published: December 2012

Reuse the electric vehicle batteries as a means of battery storage, could extend the battery life cycle. In order to improve the battery charge and discharge balance, we introduce and compare two optimized classification methods. The introduction of battery storage system in electric vehicle charging station could solve peak shaving, power quality and emergency charging effectively
Parameter Sizing of Hybrid Energy Storage System for Hybrid Electric Vehicle
Authors: Yu Hai Fang , Wang Wei , Liu Zhi Qiang
Published: December 2012

The reasonable power and energy distribution problem of two energy sources in hybrid energy storage system in HEV has been studied. This paper focuses on the analysis power and energy requirements of energy storage system and influences by the drive cycle. The parameters sizing principle of the energy storage system is put forward from the angle of energy and power respectively. The results show that following the parameters matching principle, the hybrid energy storage source which is made up of battery and ultracapacitor can meet the double requirements for power and energy in the operation process of HEV. What’s more, a good foundation is laid for HEV parameters optimization of the energy storage sources.
NVH Characteristic Prediction of an Electric Vehicle Reducer
Authors: Yu Peng , Zhang Tong , Liu Pu Hui
Published: December 2012

Taking certain electric vehicle as target, tangential electromagnetic torque and harmonic analysis of drive motor is obtained using Ansoft 2D model. The inherent characteristic, propagated error, frequency response characteristics and waterfall curves of bearing are obtained using Romax 3D model. Then the NVH characteristic of driveline under certain rotational speed is evaluated, results can be applied to the structural matching of the driveline system for electric vehicles.
Development and Application of the Light Ceramsite Foam Concrete Insulation Block
Authors: Wang Hong Zhen
Published: December 2012

This paper introduces the form of materials of the light ceramsite foam concrete insulation block, product specifications, production technology and product properties .Discusses the construction of self thermal insulation wall system construction.
Research and Investigation on Present Energy Conservation in Northen Rural Houses
Authors: Li Gang , Li Zhen , Feng Guo Hui , Liu Qian , Wang Qian
Published: December 2012

More researchers pay attention to energy consumption and conservation in cities before .This paper finds out the current structure of rural houses, the type and utilizing situation of energy and the typical heating methods in current northen rural areas of china, and points out exist problems in these aspects by Field investigation and analysis.The author proposes that insulation layers of external walls and windows are preferred measures of energy consrevation and the additional southen sunspace is also a highly effective method in northen rural areas; the hanging kang has a much better performance than landing kang which should be strongly recommended,and a new kang with PCM helps to save fuel consumption, increase temperature uniformity of kang surface , stabilize indoor temperature and improve indoor thermal comfort,which should be paid enough attention; the effective use of excess heat in solar energy water heater should be paid sufficient attention,and biogas should be strongly advocated and properly guided.
The Economic View of Green Building Based on the Humanistic Concept
Authors: Xue Yan Ni , Wang Cui Ping , Li Xian'e
Published: December 2012

Nowadays, green building, which has a rich connotation, has become a combined concept of natural, cultural and economic aspects.The humanistic concept of green building is the soul of the green building. The economic view of green building based on the humanistic concept includes"economy"and"application", which are of important practical significance. This paper mainly elaborates economic concept and applicable function,to deepe- n the understanding of economic view of green building.
Effect Analysis of a Passive Solar House in Tibet
Authors: Liu Wei , Liu Dan , Li Bai Yi , Zheng Min
Published: December 2012

This paper presents evidence from the recent study of an effect analysis of a passive solar house in Tibet. A passive solar house in Tibet is first introduced. The passive solar house was divided into two parts by trombe wall, by measuring the temperature of two different parts, the result showed that the temperature in heat preserve room and bath room appeared different changes but had the similar trend with outside temperature. In the test conditions, the daily mean temperature of these two different places ranged from 12.77°C~14.60°C to 11.21°C~13.95°C respectively, which reached our requirement. The results indicated that the solar house can improve the thermal environment for the resident.