bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design simulation and test of hydraulic control system of RFID reamer while drilling
Authors: Zhao Jianjun , Liao Hongqian 
Published: January 2021

Abstract
With the gradual improvement of exploration and development in deep and ultra-deep Wells, the demand for slim-hole drilling is increasing day by day. However, both the phenomenon of neck constriction and drill-jamming accident occur from time to time in the drilling process, and the annulus clearance between borehole and casing is too small, which resulting in high slurry annulus pressure loss, low displacement efficiency and poor cementing quality. Therefore, a kind of RFID reamer while drilling has come into being, the reamer blades can be controlled to open and close with the aid of RFID tag recognition technology without increasing the drilling cost, so as to complete the reaming operation while drilling. Taking the hydraulic control system as the research object, the hydraulic circuit has been designed based on AMESim software in this paper, so has its dynamic performance simulation analysis been carried out, finally, the ground test has been completed, the results show that the hydraulic control system is capable of accurately identifying the RFID tag information to drive the reamer blades to open and close, the overall pressure loss of the tool is about 1.0 MPa as the blades opened completely, which meets the requirements of field test.
Optimization Selection Research of Chemical EOR Pilot Project Site for Umm Niqqa Oilfield in Kuwait
Authors: Zhu Hongzhang , Song Mingming , Zuo Qin , Zhang Hong 
Published: January 2021

Abstract
The Low Fars of Umm Niqqa oilfield in northern Kuwait is a carbonate formation. After many years of primary and secondary oil recovery, Kuwait Oil Company has started to use chemical EOR flooding technology to increase recovery in this reservoir in recent years, and plans to carry out chemical EOR Pilot project. Due to the dense well pattern and surface facilities in the oil field, the site selection of the pilot project has become a problem. This essay focuses on the optimization method of the pilot project site, underground influencing factors, surface influencing factors, and analysis of the preferred site. Therefore, several important conclusions for selecting the site of the pilot project are summarized: simplifying the site design, combining local geological conditions and construction experience of similar projects, will greatly reduce investment and improve the efficiency of the chemical flooding pilot project. The successful pilot site selection of Umm Niqqa water and polymer flooding pilot projects based on underground design and surface foundation includes well site selection and water source selection. Reserve the surrounding site in advance, drill new wells in this area, install and connect the corresponding water injection pipelines and manifolds to ensure the successful implementation of the chemical flooding pilot project.
Damage evolution model of cemented tailing backfill based on acoustic emission energy
Authors: Wang Liang , Xie JinCheng , Qiao DengPan , Wang Jun , Huang Fei 
Published: January 2021

Abstract
Tailings cemented backfill is widely used in the production activities of mine management goaf, and it is also one of the main technologies to realize green mining and safety production. In this paper, the cyclic loading and unloading test of cemented tailing backfill is carried out based on acoustic emission technology, the evolution trend of AE energy in the loading process is analyzed, the damage variable based on AE energy is defined, and the damage evolution equation of cemented tailing backfill based on AE energy is established, and the quantitative relationship between AE energy and damage energy release rate is explored. It provides basic research basis for bearing process analysis and failure prediction of cemented backfill in mine site.
Research on Prediction Method of Drilling and Falling Recovery Law in Productivity Area
Authors: Jia Xueyan 
Published: January 2021

Abstract
With the expansion of production scale in recent years, the drilling drop in Sazhong Development Zone has a greater impact on output. From the statistics of recent years, the annual output of drilling drop affects an average of 106,000 tons, which is 2 to 3 times the output of new wells that year. Judging from the characteristics of the dynamic changes in the whole process of drilling and dropping, there are great differences in the dynamic changes in different blocks, different oil layers and different well spacing conditions. The dynamic response time of the Sapu oil reservoir is earlier than that of the Gaotaizi oil layer; the smaller the well spacing, the earlier the dynamic response time; However, there are few conclusive literatures on the effects of drill-down, and there is little discussion on the degree of drill-down effects. In order to further study the drill-down rule under different well patterns, different pressure levels, and different oil layer properties, and to further quantitatively study the degree of the drill-down effect, this paper takes the North East Block Duandong block as the research object, and analyzes different wells during the drilling recovery process. The in-depth study of the factors affecting the drill-down under different conditions of the network, pressure level, and different oil layers is carried out, and the law of drill-down recovery is summarized; combined with the theory of percolation, mathematical statistics is used to predict the influence of the drill-down to arrange the production operation for the next year As well as the preparation of the drill-down recovery plan to provide theoretical guidance.
The Influence of Interlayer on the Expansion of Steam Chamber of Oil Sand SAGD Development
Authors: Dou Kangwei , Li Aifen 
Published: January 2021

Abstract
The steam-assisted gravity drainage (SAGD) technology is currently a more effective frontier technology for the exploitation of heavy oil, and it has a better development effect than other exploitation methods. The formation and expansion of the steam chamber is the key to SAGD technology, and the interlayer is an important influencing factor. Therefore, it is of great significance to study the influence of the interlayer on the expansion of the steam chamber and the effect of SAGD development during the oil sand SAGD development process. In order to study the influence of the interlayer on the expansion of the steam chamber during the oil sand SAGD development process, a double-horizontal well SAGD physical experiment simulation experiment was carried out using the experimental device of the thermal recovery physical simulation system. The influence of interlayer on the expansion law of the steam chamber during the SAGD development of dual horizontal wells is studied. Studies have shown that the interlayer inhibits the longitudinal development of the steam chamber, and the steam chamber is forced to expand laterally along the interlayer to form a steam chamber similar to an inverted triangle. The steam chamber is fully developed in the area below the interlayer, but the steam chamber cannot break through the interlayer.
Research on Urban Resource Allocation and Regional Environmental Innovation in Hefei Metropolitan Area
Authors: Yuan Jie , Hu Yalin 
Published: January 2021

Abstract
The planning of urban agglomerations and metropolitan areas is to better coordinate the development of urban resources and the environment, coordinate the relationship between urban construction and population distribution, resource development, environmental improvement and infrastructure construction. The practice of urban agglomeration resources and environmental planning in developed countries has a history of nearly 100 years, while China is still in its infancy. Take New York, London, Paris, Tokyo and other metropolitan areas as examples, from the distribution of resources, environmental engineering, industrial layout and transportation route distribution as the research objects, study and analyze the planning and development process of urban agglomeration resources and environment. Summarizes the development model and characteristics of urban agglomerations, and puts forward suggestions on the development of resources and environment in the Hefei metropolitan area on this basis.
Application of Proton Exchange Membrane Electrolysis of Water Hydrogen Production Technology in Power Plant
Authors: Xue FangMing , Su JingCheng , Li PeiPei , Zhang Yulong 
Published: January 2021

Abstract
Proton exchange membrane (PEM) electrolyzed water hydrogen production technology has the advantages of high working current density, high electrolysis efficiency, non-polluting reaction, light weight, compact structure, etc. The small-scale electrolyzed water hydrogen production equipment of this technology is used for hydrogen cooling in power plants. The unit field has a wide range of application prospects. This article first introduces the working principle and technical advantages of PEM water electrolysis hydrogen production technology. By comparing with the quantitative results of alkaline water electrolysis hydrogen production technical solutions, it analyzes the technical solutions of PEM electrolysis technology in the hydrogen-cooled generator set of power plants. The equipment composition and economic feasibility further look forward to the development prospects of PEM electrolyzed water technology in power plants and other civilian fields.
Study on PSA Oxygen producing process under plateau region: Effect of purging flow rate on oxygen concentration and recovery
Authors: Fu Yaoguo , Liu Yingshu , Zhang Quanli , Cao Xiguang , Zhao Chunyu 
Published: January 2021

Abstract
The effect of purging flow rate and oxygen product concentration and recovery rate under different altitude conditions (50 m-4540 m) was studied on the PSA oxygen production platform. The results show that the higher the altitude, the less the purging flow rate consumption in PAS process. Product oxygen recovery rate at altitudes of 50 m, 2810 m, 3080 m, 3550 m, 4140 m and 4540 m is 39.6%∼42%, 42%∼47%, 43%∼46%, 43.4%∼45.5%, 42%∼46% and 48%∼52.5% respectively. At the same altitude, the oxygen recovery first increases and then decreases with the increase of purging flow rate, and there is an optimal balance between oxygen recovery and purging flow rate. This study can provide reference for the regulation of oxygen production process of PSA at high altitude.
System Dynamic Modelling of Comprehensive Carrying Capacity for Power Grid Development Planning
Authors: Huo Huijuan 
Published: January 2021

Abstract
In the face of the changing demand of economic and social development and the policy of power system reform, the carrying capacity of power grid development should be calculated to guide the future planning. Based on the causality of the factors in China’s Power Grid Planning, a System dynamics model is constructed to quantitative carrying capacity of power grid development dynamically. A series of indicators were also considered in the model, including the power transmission and distribution pricing policy, power load demand, power grid operation benefit and cost, etc. An example of a regional power grid in China is given to verify the validity and feasibility of the proposed model.
Research on the influence and test of core components on relay protection device
Authors: Liu Huihai , Zhang Yifan , Li Wei , Zhang Xiaoli , Wang Huiping 
Published: January 2021

Abstract
As the core equipment of power grid, relay protection device plays a key role in the safe and stable operation of power grid. It has become the development strategy of State Grid Corporation of China to research and develop high-performance and high reliability domestic chips and to carry out the localization of core components of relay protection. This paper analyzes the hardware structure of the relay protection device, studies the performance index parameters and performance of the core components of the relay protection device; combined with the operation environment of the relay protection device, analyzes the influencing factors such as temperature, humidity, electromagnetic interference, etc., puts forward a part of the test scheme of the general hardware of the relay protection device based on the domestic core, which is the centralized test of the relay protection device based on the "domestic core" Provide reference basis.
Auxiliary service strategy model of power plant participating in peak load regulation
Authors: Lv Xiangyu , Li Dexin , Wang Jiarui , Gong Chuanzheng 
Published: January 2021

Abstract
With the large-scale grid connection of renewable energy, it is necessary to ensure that the peak shaving demand of the system due to the volatility of renewable energy such as wind power can be met. On the premise of ensuring benefits, how to further tap the peak shaving potential of thermal power units and ensure the safe and reliable operation of power system is the primary problem faced by thermal power plants at this stage. According to the mechanism of peak load regulation auxiliary service in Northeast China, this paper puts forward the strategy model of participating in peak load regulation auxiliary service of thermal power plants, so as to provide basis for further tapping the peak load regulation potential of thermal power units and improving the actual consumption of renewable energy such as wind power by power grid.
Simulation and Experimental investigation of Battery Thermal Management System for a Hybrid Vehicle
Authors: Qiu Wanchao , Li Gang , Ouyang Chenzhi , Zeng Jianhong 
Published: January 2021

Abstract
As a essential component in battery pack, thermal management system plays a vital role in controlling battery temperature, prolonging battery lifetime, enhencing battery safety. A battery liquid cooling system for hybrid vehicle is described in this paper. Based on vehicle thermal requirement, the battery thermal system design is optimized by 3D CFD simulation and thermal analysis in STAR-CCM+. Simulation result shows that the targets of battery thermal system can be fulfilled. Two use cases are analyzed in battery bench test, same as the simulation use cases. Comparing simulation result with bench test, it shows that the deviation of battery maximum temperature in high-temperature conditions is 1.8% and in low-temperature condition is 11%. A complete development process of battery TMS is illustrated in this paper and provide research direction for cooling plate optimization and bench test method.
Research on electric load adjustment ability of different types of heat supply units
Authors: Lao Jinxu , Zheng Wei , Zhu Lingkai , Guo Junshan , Lv haizhen 
Published: January 2021

Abstract
With the development of renewable energy and the rapid growth of thermal load, due to the influence of the mode of "determining power by heat", the power grid dispatching in heating season can not accurately adjust the unit load, and the peak load regulation capacity of power grid is limited. Through the load capacity test of cogeneration units in heating season, the adjustment range and limiting factors of different types of units are obtained, which can be used as reference for power generation enterprises and power grid dispatching operation.
Cause analysis and verification method for output adjustment of Shandong Power Grid
Authors: Che Yongqiang , Han Yue , Chen Yisen , Zheng Fengcai , Lv Haizhen 
Published: January 2021

Abstract
Thermal power units account for a large proportion of the total installed capacity of Shandong power grid, so the output adjustment of thermal power units has a great impact on Shandong power grid. This paper analyzes all the output adjustment of thermal power units in Shandong power grid in November 2019, and puts forward a classification method of output adjustment for units with different capacity levels, gives the verification method of output adjustment, and puts forward the suggestions for output adjustment.
Introduction and Efficiency Evaluation of Multi-storage Regional Integrated Energy System Considering Optimal Operation Integrated Demand Side Response
Authors: Wang Shiqian , Yin Shuo , Bai Hongkun , Chen Xing , Jin Man , Yan Jing , Zhang Peng 
Published: January 2021

Abstract
With the depletion of traditional energy sources, the Regional Integrated Energy System (RIES) came into being to solve the energy crisis and the problem of consumption. The battery, the thermal storage electric boiler and the P2G equipment are added into energy system. The impact of system operation was analyzed after adding different equipment. Then, the demand side response of the electric heating and gas are considered, and the economic operation model of the regional integrated energy system is established with the minimum operating cost of the system as the objective function. Seven scenarios were set up for comparative analysis. The results show that the demand side response of electric, heating, and gas are considered in the regional comprehensive energy system with multiple energy storage devices, which not only makes the load achieve the purpose of peak load cutting and valley filling, but also reduces the phenomenon of abandoned wind and sunlight and the system operation cost.
Research on the Key Factors of Improving Thermal Efficiency and Temperature Uniformity of Oven
Authors: Ma Qiyuan 
Published: January 2021

Abstract
As a convenient kitchen appliance, the oven is more and more popular. The thermal efficiency of the oven and the uniformity of the temperature field in the inner chamber are the key indexes to measure the product quality. In this paper, the existing oven in 3D hot air mode of low thermal efficiency and uneven temperature field were analyzed. The heat insulation, heat dissipation system and component structure of the oven were improved, and the effects of various improvement measures on the thermal efficiency and inner temperature field of the oven were simulated. The results show that the thermal efficiency and temperature uniformity of the oven can be greatly improved by increasing the thickness of the insulation cotton, pasting aluminum foil on the inside and outside of the side plate, reducing the speed of the back fan, optimizing the structure of the fan guide vane and the position of the back heating pipe.
Analysis on Abnormal Problems of Steam Turbine of Shandong Power Plant in 2019
Authors: Chen Yisen , Chen Yang , Che Yongqiang 
Published: January 2021

Abstract
The completion of steam turbine main operation indexes of Shandong power plant in 2019 is analyzed. The technical transformation of steam turbine energy saving and the problems found in the technical supervision and inspection are also introduced. Then the main problems in the safety and economy of the steam turbine profession are pointed out, and the next key work for these problems is proposed.
Application of FA in intelligent distribution network
Authors: Zhu Lingkai , Wang Qian , Wang Weishuai , Zhang Haijing 
Published: January 2021

Abstract
As the nerve end of power system, distribution network is a user oriented window for power enterprises. Feeder automation (FA) is an important part of intelligent power distribution, which can monitor line operation, find line faults in time, diagnose fault areas quickly, isolate faults and restore power supply in non fault areas. This paper analyzes FA from the aspects of FA realization mode and start-up strategy, and takes FA usage in Shandong distribution network as an example to illustrate the role of FA in intelligent distribution network.
Theoretical Foundation and Model Construction of Comprehensive Evaluation of Distribution Network
Authors: Wu Tianchen 
Published: January 2021

Abstract
As my country's economy has shifted from a stage of rapid growth to a stage of high-quality development. The scale of the distribution network is gradually increasing, and the manpower, material and financial resources involved are increasing day by day. Therefore, scientific comprehensive investment evaluation and decision-making for the distribution network is of great significance to the sustainable development of the distribution network. Based on hierarchical analysis method and entropy weight method, this paper proposes an evaluation model of analytic hierarchy process based on entropy weight. Score the indicators of 142 substations in a city, and calculate the comprehensive score of each substation. According to the evaluation results, relevant suggestions are given for the next stage of investment in different power supply stations in a certain city. On this basis, the analytic hierarchy process based on entropy weight is improved. Combining the variable weight theory to optimize the weight calculated by the model, and then obtain a more reasonable comprehensive score of the substation.
Optimization of surface roughness of Titanium Gr-9 Alloy Turning using Taguchi method
Authors: Raghavendra M J , Ramachandra C G , Srinivas T R , Pai M Prashanth 
Published: January 2021

Abstract
In this work, the performance of chemical vapors deposition coated carbide insert has been described by Taguchi’s manner, a whirling of Titanium(gr-9) alloy, for investigation consider a machine hurtful parameters like machining Feed-rate, Depth of cut and Cutting speed by the help of input evaluation of investigation of surface irregularity and cutting tangential force. The experimental test was carried. Based on the optimization techniques like Taguchi’s of an orthogonal array system. The optimization of the output response by the analysis of variants (ANOVA) to estimate the nominal surface roughness and maximum tool life. The test result shows that increases in feed-rate and cutting speed correspondingly, the surface irregularity is higher, varies in cutting tangential forces increases cutting speed force also increased, decrease with feed-rate and speed correspondingly and significantly decrease cutting tangential forces.
Production of Cutting Tool Vibration in Turning Using Artificial Neural Network
Authors: Elango Murugappan , Annamalai Adithyan , Praveen Raju A 
Published: January 2021

Abstract
The cutting parameters like cutting speed, feed, and depth of cut can affect the tool life. Also, the vibration of the tool can affect the tool life. The aim of this study is to predict the cutting tool vibration to enhance the tool life. In this paper, vibration of tool is studied with HSS tool (high speed steel) while turning mild steel. The tool vibration is measured using X Viber vibration meter. The experimental data are tabulated and imported to artificial neural network (ANN). A multilayer perceptron model is trained with back-propagation algorithm using the experimental data. The rake angle, cutting speed, and feed are considered as input parameters for training the ANN. The trained ANN is used to predict tool vibration for different conditions. The predicted values are compared for the specific range to justify the tool change.
Optimization of WEDM Parameters for Machining of AZ31B Mg Alloy Using Taguchi Method
Authors: Karthik R , Viswanathan R , Balaji J , Sivashankar N , Arivazhagan R 
Published: January 2021

Abstract
This work involves optimization of machining parameters of wire cut Electrical Discharge Machining (WEDM) used for maching of AZ31B magnesium (Mg) alloy with molybednum wire to attain the lowest surface roughness from the process. Mg alloys such as AZ31B are light-weight materials with high potential for industrial applications and used in the manufacture of airframes, aircraft engines, helicopter components, automotive parts and light trucks. L9 orthagonal array with three input parameters such as Voltage (V), Pulse on time (μs) and pulse off time (μs) at three levels are used to conduct the experiments. Taguchi method is utilized to study the effect of these parameters on the surface roughness (SR). From the investigation it was found that pulse on time exert the major influnce on surface roughness while Voltage and pulse off-time have lesser influnces on the process to reduce the surface roughness.