bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on “Utilization Efficiency of Oil and Gas” in Oilfield Production Affected Zone
Authors: Dai Jinyou , Lin Lixin , Wang Rui , Wang Yang , Yu Zhanxuan 
Published: May 2021

Abstract
Not all reserves in the production affected zone are utilized during the development of oil fields. It is of great significance for the efficient development of oil fields to clarify the utilization degree of oil and gas in the production affected zone. A quantitative characterization parameter of the utilization degree of oil and gas in production affected zone is proposed, which is the utilization efficiency of oil and gas. Mathematical and physical models were established, and combined with the example of the X well area of Xifeng Oilfield, Ordos Basin, China, a systematic study was conducted on the physical meaning, influencing factors, determination methods, and production significance of utilization efficiency of oil and gas. Studies have shown that the utilization efficiency of oil and gas is the ratio of the volume of oil and gas utilized to the volume of oil and gas in the production affected zone. For a particular reservoir, it is mainly affected by two factors: driving pressure and accumulation force. Among them, the driving pressure affects the volume of oil and gas utilized, and the accumulation force affects the volume of oil and gas accumulated. The relative size of the two determines the utilization efficiency of oil and gas. When the driving pressure is less than the accumulation force, oil and gas are partially utilized. When the driving pressure is equal to the accumulation force, all oil and gas are utilized. When the driving pressure is greater than the accumulation force, all the oil and gas are utilized and the formation water is produced. This study shows that optimizing the driving pressure (or production pressure difference) with accumulation force can improve the utilization efficiency of oil and gas and avoid or reduce formation water production. This research provides a new basis for the optimal adjustment of production pressure difference, and has important reference significance for water control and oil stabilization and efficient development in oil fields.
Effect of Initial Temperature and Pressure on Laminar Combustion Velocity of ABE Mixtures with Different Component Contents
Authors: Xiong Jinying , Hou Yingzhe , Yan Xiaozhe , Cui Qiguan , Liu Yiwen 
Published: May 2021

Abstract
One-dimensional planar flame was numerically simulated to study the premixed laminar combustion characteristics of acetone-n-butanol-ethanol (ABE) mixtures under different component contents. The results showed that as the initial temperature was elevated, the laminar combustion velocity of ABE mixtures was gradually increased under different component contents, and the increase rate was not obviously changed. With the increase in the initial pressure, however, the laminar combustion velocity presented a declining trend, and the descent speed was gradually lowered.
Research on the Operation of Electric Vehicle Charging Stations
Authors: Jiang Yan , Zhang Yidan , Li Lu , Liu Hang , Wu Hansong , Xu Hanshen , Ding Ye , Jia Yunjie 
Published: May 2021

Abstract
As the number of electric vehicles continues to grow, the demand for charging infrastructure continues to expand, and the construction of charging facilities is significantly accelerated. However, after the completion of large-scale construction, problems such as low utilization, low operating profit, and extended investment payback period have emerged, which has become a bottleneck for the development of the electric vehicle industry. Based on the actual operating data of a charging station, this article analyses the operating characteristics of the charging station from the three aspects of charging power, charging time, and utilization. According to its characteristics, this article analyses the relationship with the local economic operation trend, the reasonable length of time for charging parking spaces, and the efficiency of manual maintenance. The article proposes corresponding improvement opinions for existing operational shortcomings.
Mechanics analysis of gears system for peeler device during live operation of 10kV distribution network overhead line
Authors: Yu Feng , Kai Wu , Shaolei Wu , Xun Shi , Qiangqiang Liu , Wei Wang 
Published: May 2021

Abstract
According to the market research, the existing gear transmission device of peeler has complex structure, processing and assembly process difficult, designed a more enclosed gear transmission mechanism. The new device to reduce the labor intensity of operators, improve the operation efficiency of practical significance. By using the SolidWorks 3d modeling, based on ANSYS Workbench to intensity check and optimize the design of the gear, the four gear simulation results show that the gear displacement decreases gradually from the outside to the inside and increases with prolonged time, the maximum displacement occurs in the gear contact area and the contact area is always changing. The maximum stress of a gear occurs where the top of the tooth and the root of the tooth contact.
Estimation of the specific heat capacity ratio of gasoline vapor based on the relationship between the maximum pressure rise rate and initial pressure of gas explosion
Authors: Zhang Peili , Xiao Jun , Liang Jianjun , Wu Jingsi , Liu Huishu 
Published: May 2021

Abstract
Gasoline is volatile and can form a flammable gas mixture with air easily. Researches on the gas explosions still need to be developed so that more effective explosion prevention techniques and measures can be proposed. The maximum overpressure rise rate and deflagration index are two important parameters for measuring gas explosion damage power. The relationship between these two parameters and the initial pressure is controversial. Razus et al. insisted that it was a linear relationship, however, Faghih et al. declared that it was an exponential relationship. In this paper, the relationship between the maximum pressure rise rate (the deflagration index) and the initial pressure is deduced and discussed. The results show that the relationship is still linear. On this basis, the deduced relationship formula is used to estimate the specific heat capacity of gasoline vapor. Results show that the estimated value is reasonable and acceptable.
Research on the Ability of Regional New Energy Consumption Based on the Coupling Coefficients of Time-series
Authors: Sun Wenjian , Tao Ye , Xiao Ling , Luo Xiaoming , Yue Yao 
Published: May 2021

Abstract
In this study, a method for the investigation of the available capacity of new energy based on the time-series coupling coefficients of the combination of regional wind power, photovoltaic and load was proposed, with the aim of getting an in depth understanding of the regional new energy consumption capacity, and a more accurate amount on the regional potential installation capacity. The typical scenario of new energy high output in the area was determined based on the historical measured power and load data, and the time-series coupling coefficients of the combination of wind power, photovoltaic and load in the area were summarized. The regional new energy consumption capacity and the potential installation capacity for the next three years were quantitatively calculated based on the time-series coupling coefficients. The accuracy and reliability of this method compared with traditional methods were analyzed.
In-situ polarization enhanced piezoelectric property of polyvinylidene fluoride-trifluoroethylene films
Authors: You Mengli , Hu Xiaoran , Xiang Yong 
Published: May 2021

Abstract
The polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) piezoelectric film was obtained by the in-situ polarization, which 10x increased the piezoelectric coefficient d33. By using our polarizing system, the PVDF-TrFE film can be polarized in 5 minutes at room temperature. Compared with the traditional polarization method, the in-situ polarization was performed with low poling voltage, short poling time, and can ensure the obtained PVDF-TrFE film with enhanced piezoelectric performances and uniform distribution among large area. The results provide a new method for PVDF-TrFE films with large area and high piezoelectric coefficient, which improves the piezoelectric performance and broadens the application in energy harvesting.
Design of thermal protection system for Marine Motor
Authors: Wang Yan-Wu , Qian Chao , Yang Kun 
Published: May 2021

Abstract
The abnormal heat fault of marine motor frequently occurs for the bad working environment. And the navigation safety and reliability of the ship had been affected seriously. The heat transfer path of the motor is analyzed theoretically from the point of view of heat transfer in order to solve this problem. The relationship between the surface temperature and the internal temperature is established. The surface temperature of the motor is measured in real time by the temperature acquisition module. And the measurement results are transmitted to the host computer through RS485 communication interface. The inner and outer surface temperature quantitative relationship is used to judge whether the inner temperature of the motor is abnormal or not, and the real-time alarm is carried out to realize the thermal protection of the motor.
Topology Identification Method of Urban Power Grid Based on 5G Communication
Authors: Tu Qi , Li Xin , Gao Houlei 
Published: May 2021

Abstract
With the development of 5G communication technology and intelligent terminal technology of urban power grid, intelligent distributed control mode independent of master station will become the trend of intelligent distribution network in the future. The characteristics of flexible configuration and strong scalability make 5G communication technology provide a wireless solution, which greatly gets rid of the constraints of communication cables and promotes the popularization and application of intelligent distributed control technology. Based on 5G communication technology, this paper proposes a distributed topology identification method. In this solution, each Smart Terminal Unit (STU) only needs to configure its associated static network topology information, and each STU forms dynamic network topology information according to certain topology identification rules. The purpose of identifying topological information is to use the information to provide topological information support for advanced functions of the distribution network, such as reclosing, identification of distributed power islands, and restoration of non-faulty section power supply.
A Fluid-Structure Interaction Based Simulation Study Of Piezoelectric Micropump For Drug Delivery Application
Authors: Vante Abhijeet B. , Ramakrishnan R. 
Published: May 2021

Abstract
Micropump technology has garnered the attention of researchers because of its diversity in numerous applications. Fast response and low power consumption make the piezoelectric micropump an obvious choice for controlled drug delivery applications. It requires fluid flow with minimum flow pulsations and backpressure. Because of the complex structure of the valved micropump, an accurate analytical flow solution is difficult to attain. Hence, a numerical simulation was performed on the model of piezoelectric micropump with microvalve using a finite element solver. A 3D Two-way Fluid-Structure Interaction (FSI) study was carried out. This illustrates the pressure exerted by fluid onto the solid and the change in fluid flow as the resultant. The solution was obtained for the fluid flow in a continuously deforming geometry. The analysis of results gives stresses developed on the microvalve, change in flow discharge and actuator displacement with respect to input frequency and voltage. The experimental results are presented to validate the simulation. This study is useful to establish a precise and controlled drug delivery using micropump in biomedical applications.
Bio-Composites: A Study On Behavior Of Oil Palm Mesocarp Fiber Reinforced Kgg
Authors: Srikanth V. , Narender Reddy K.Raja , Rao D.K.Nageshwar 
Published: May 2021

Abstract

The use of petroleum based non-degradable polymers and the effect of petroleum products directly impacting lives. Therefore, eco-friendly biodegradable composites are attracting more and more researchers. Biodegradable composites are prepared by using hand layup process using Kondagogu gum(KGG) resin with oil palm mesocarp fiber(OPMF) as reinforcement. Mechanical properties such as tensile, flexural, impact and Thermogravimetric (TG/DTA) of the composites are evaluated. The effect of fiber loading on the mechanical and thermal properties of the composite is also studied.
Design, Development And Testing Of A Multifunctional Jar And Bottle Opener
Authors: Kuchhal Harshit , Rajkumar E 
Published: May 2021

Abstract
Many fields in Engineering Technology today are focused on encouraging and motivating students to implement their educational concepts in the real world to fight with the increasing demands of new technology in the global market. This paper explores how a project interwoven through the Engineering Technology curriculum can be used to create a product to be sold in the today’s market to do basic household jobs and make them easier. The main focus of the bottle opener product existing in the market is that they are used on specific type of bottles and if to be used for different needs different product and will reduce the feasibility and portability as a greater number of products will be used to carry out these operations. Therefore, to eliminate this problem the objective of the project is to develop a multifunction bottle opener which can be used to deal with all the types of bottles available in the market. This product will work on the basic principles of mechanism like rack and pinion mechanism, cork plug and stress bending. Many researchers compared the shapes and mechanism in their work. Though there are similar work, but in the present work casts a unique design and has a functionality difference which makes this project exclusive from other projects. The optimized form of a common product that is a multi-functional bottle and jar opener is obtained from this project which can be used to open different styles of cap of different bottles.
Finite Element Analysis Of Thermal Fatigue Loading Of Nano Materials Coated Turbine Blade For Critical Applications
Authors: Ashok Kiran , Aswin C K , Samuel Ben Abraham 
Published: May 2021

Abstract
Thermal barrier coatings (TBC) have structures which are very complex and are employed in high temperature condition. The phenomenon of cracking is usually noticed at both the Top Coat (TC) and the interface between the bond coat and the thermally grown oxide layer under the Thermal Cyclic Fatigue (TCF) loading. In this study, the cracking behavior in Bond Coat (BC) and interface for TBC were thoroughly determined by using the commercially available ABAQUS/CAE 6.14-3 FEA software. This study also analyzed the key aspects causing the cracking behaviors in TBC. Various crack propagation path in the Bond Coat (BC) could be obtained on changing the thermal wave forms. The beginning location of TC (Top Coat) was independent of the roughness in the interface. The thermally grown oxide layer (TGO) which is thinner at the beginning could increase the service life of TBC. From the results it is evident that in order to characterize the service environment, the thermal fatigue load and the working temperatures have to be designed
Investigation On Smart Materials For Light Duty Goods Vehicle Chassis Frame Using Fea
Authors: Saravanan K.G. , Kumar S.Lakshmana , Vetrivel S. 
Published: May 2021

Abstract
Weight directly affects performance and emission parameters of vehicle. The main contributor of weight in heavy vehicle is chassis frame [1]. The reduction of weight of chassis improves fuel economy and reduces carbon dioxide emission. There are several conventional and non-conventional chassis materials available in the market [2]. Composite materials future looks promising because of their lesser weight and higher performance [3]. Proper usage of such product will help in fuel economy thus, saving the fuel and environment [4]. Also it helps to achieve higher performance readily than other conventional materials [5]. Hence, in this Project, we are going to reduce the weight of TATA ACE chassis using composites after the design and analysis of chassis frame [6]. Different materials are tested in ANSYS software are the material having the best desirable properties is recommended for further application in the automotive industry [7].
Speech Recognition based Industrial Cloud Robot for Service-Oriented Sustainable Manufacturing
Authors: Kalaiarassan G , Franklin Prashanth C , Prakash M , Phirke Shreya 
Published: May 2021

Abstract
Industrial Cloud Robotics is an amalgamation of cloud computing and an industrial robot to establish a service-oriented manufacturing system. Teleoperation of an industrial robot – the ability to control a robot from a remote location, is facilitated through this system. In this paper, a framework is proposed by utilizing speech recognition and industrial cloud robots for the applications of sustainable manufacturing. We have used Google’s speech recognition services to control the robot manipulator. We have employed Android Speech API in a custom android application that receives the speech signal, transcribes, and forwards it to a server. The application can be viewed or accessed by any host computer, which primarily serves as a user. The monitoring unit and the data is fetched by the Robot Speech Interface unit via the internet and web sockets. The interface triggers the required action of the robot through the relay board actuation of the digital input facility of the robot. Through this work, it is realized that, despite the disturbances and noise interferences, speed and reliability are not compromised.
Fuzzy Logic-based Digital Hydraulics Control of Blade Pitch Angle in Wind Turbines
Authors: Narayanan Lakshmi V , Ramakrishnan R 
Published: May 2021

Abstract
The pitch control system is generally employed in a wind turbine to mitigate load and maintain uniform power generation at above-rated wind speed regions. The hydraulic system has more power to weight ratio and so it is incorporated in the pitch system of large scale wind turbines. Some of the issues related to the usage of conventional valves in the Hydraulic Pitch System (HPS) are: internal leakage, throttling losses, high power loss, less fault-tolerant, requires high manufacturing tolerance, and more sensitive to contamination. To overcome these issues, digital hydraulics technology should be introduced as Digital Hydraulics Pitch System (DHPS). Commercially, Proportional Integral Derivative (PID) controller is used as a pitch controller but these controller performances don’t hold good when excessive disturbance or change in operating point occurs in the system. So, heuristic-based Fuzzy Logic Controller (FLC) is preferred which can surpass the PID problems. In this paper, a heuristic FLC based control strategy is proposed for a novel DHPS configuration to control the pitching action. The simulation model of DHPS is developed and system simulations are conducted. The comparative study on the effectiveness of FLC for DHPS and conventional valve controlled HPS is conducted.
Design of a Sub-Surface Drilling Mechanism through Solid Modelling and Analysis
Authors: Mohta Kaustubh , Yelvande Samarth , Venkatesan S 
Published: May 2021

Abstract
Current mechanisms for drilling and milling fall short in creating holes beneath the surface without disrupting bulk portion of the material. Presently, the only way to drill underground is through tunnel boring machines - each of them weighing hundreds of tons and costing millions of dollars. Clearly, they can’t be used to drill small diameter holes. This paper produces a novel idea for making U-shaped holes and for drilling beneath the surface without any digging. This has wide range applications in fields of road and transport, wires and pipe installation, component manufacturing etc. and can be used for all the sub-surface drilling operations. The materials used for this purpose are HSS Steel, Carbide Steel, and Cobalt-alloy Steel. These materials are assigned to the body of the drill and FEM analysis is conducted to find the total deformation and the Von-Mises stresses induced in the drill body.
Modelling and Numerical Simulation of Fluid Flow and Heat Transfer through Open Celled Metal Foam
Authors: Gokul Kumar K , Naiju C D 
Published: May 2021

Abstract
The use of open-cell metal foam in numerous technologies is increasing rapidly. Heat transfer measurements inside rectangular blocks of commercially-available aluminium foam subjected to constant heat flux at metal foam surface are presented. Cases for different pore velocities, porosities and pore densities of the foam are given. Each foam block is cooled by a confined stream of ambient air and the inlet-outlet boundaries of the computational domain were assigned. Simulations were carried out using the commercial software Fluent with a specific mass flow rate at the periodic boundaries of the domain and heat flux at the structure of the metal foam thus enabling convection. Different meshing schemes and different grid sizes were used for mesh independent to get the results with different flow velocities. Different approaches for heat transfer analysis of metal foam is considered and the most suitable approach is proposed. The temperature and the pressure drop were determined with different velocities. The heat removal rate for one unit cell was extrapolated to calculate it for the whole bed. For flow and heat transfer analysis, two fluids: air and water are used and the various results obtained are compared. Thus the variation of flow and heat transfer properties was studied with varying flow and foam parameters.
Tunable coupling of two mechanical resonators by a graphene membrane
Authors: Verbiest G J , Goldsche M , Sonntag J , Khodkov T , von den Driesch N , Buca D , Stampfer C 
Published: May 2021

Abstract
Coupled nanomechanical resonators are interesting for both fundamental studies and practical applications as they offer rich and tunable oscillation dynamics. At present, the mechanical coupling in such systems is often mediated by a fixed geometry, such as a joint clamping point of the resonators or a displacement-dependent force. Here we show a graphene-integrated electromechanical system consisting of two physically separated mechanical resonators—a hybrid graphene comb-drive actuator system and a suspended silicon beam—that are tunably coupled by the integrated graphene membrane. The graphene membrane, moreover, provides a sensitive electrical read-out for the two resonating systems showing 16 different modes in the frequency range from 0.4 to 24 MHz. In addition, by pulling on the graphene membrane with an electrostatic potential applied to silicon beam resonator, we control the mechanical coupling, quantified by the g-factor, from 20 kHz to 100 kHz. Our results pave the way for coupled nanoelectromechanical systems requiring controllable mechanically coupled resonators.