bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative investigation on two tank and cascade thermal storage for solar power plants
Authors: Neelam Khandelwal , Meeta Sharma , Onkar Singh , Anoop Kumar Shukla 
Published: February 2022

Abstract
The use of alternate energy has been increased nowadays due to the environmental threats associated with the fossil fuels. Solar energy is emerged out as the most popular alternate source of energy due to its ease of availability. The energy yield from Solar thermal power project can be characterised as variable because of the daily and seasonal variation of the solar field which directly affects the system efficiency. This concern associated with solar power plants can be eliminated with the use of thermal storage solar energy wherein the solar energy can be stored in daytime and can be releasedin the time no solar irradiations. There is different thermal storage can be used to store solar energy such as sensible heat thermal storage, latent heat thermal storage and chemicalheat thermal storage. The heat transfer fluids play an important role for the selection of thermal storage. The present work compares the performance of two tank thermal storage system and cascade thermal storage system for oil and molten salt as HTF. The efficiency of TES can be attained up to 88.2%with cascade storage which is higher by 7.66%in comparison to the two-tank storage system.
Modelling and analysis of intelligent tyre alternatives for better performance
Authors: Rama Sarma Sri , Chaudhary Vijay , Gupta Dr Sumit , Gupta Dr Pallv 
Published: February 2022

Abstract
For more than ten decades people have been using vehicles rolling on pneumatic tyres. The essential factor for safety of automobile is tyre. Tyre conditional plays vital role in the safety of a passenger. In olden days wheels were made up of wood, later it became evolved into tube and tubeless tyre. A traditional tire is made up of reinforced rubber packed by using compressed air. Conventional tyre over period had been dominating market sector because of its riding comfort and strength. But it has its own disadvantages like problems of puncture, inflation. Under or over inflation of tyre cancause tire blowouts, tread separation. In recent years a few tyre companies and researchers are experimenting with non-pneumatic tyre performance including Michelin, Bridgestone, and goodyear but none of them has started its mass production. Non pneumatic tyres are the tyres which no longer need air pressure. In this project we replace traditional tyre by flexible tyre structure and finds out other intelligent alternatives to conventional tyres. We have investigated spoke’s structure designed for airless tyre and applied uniaxial load. We designed the structure in ANSYS design modeler and ANSYS static structural has been used to analyze whether the designed structure is valid or not. Three kinds of intelligent tyre alternatives have been identified and stressed their use, working and importance for future mobility.
Thermodynamic investigations on PDC based solar air conditioning system
Authors: Masood G. M. , Singh Onkar 
Published: February 2022

Abstract
Global warming is raising the ambient temperature and thus resulting in increased air conditioning requirements. The increase in power requirements of air conditioning systems, in turn, burdens the electricity needs and more electricity generation further adds to global warming. In such situations, the availability of solar energy and its utilization for air conditioning systems appears a potential solution to a certain extent. This paper deals with the thermodynamic analysis of a parabolic dish based air conditioning system working on vapour absorption refrigeration cycle for the H2O and LiBr combination as working fluid. Thermodynamic modelling was used to assess the impact of changing the initial concentration of lean solution and the varying condenser temperature under the atmospheric conditions of that region during peak air conditioning demand months on several parameters such as coefficient of performance, cooling effect, and exergetic efficiency of the system. At 45 percent of the initial LiBr concentration in weak solution, the system’s highest coefficient of performance is attained.
Parametric Investigations on Solid oxide fuel cell and gas turbine combined system
Authors: Kumar Yadav Sanjay , Singh Onkar 
Published: February 2022

Abstract
This paper presents a thermodynamic investigation on the SOFC-GT combined system for maximizing power generation and optimal energy utilization. The system modeling and analysis are based on the first law of thermodynamics. Performance of the solid oxide fuel cell-based system is analyzed for parametric variation of compression ratio, turbine inlet temperature, fuel utilization factor, and ambient temperature. Direct energy conversion system has an advantage over the indirect system as they reduce the adverse impact on the environment, so solid oxide fuel cell-based systems are environmentally friendly. The maximum.output.of.the considered cycle.is 120.08 kW/Kg of air. The combined efficiency of the system is 51.02% at 1400 K.turbine.inlet temperature. and.13 compression ratio at fixed fuel utilization factor of 80%.
Thermodynamic Investigation of ORC Integration in Solar Assisted Gas Turbine Cycle
Authors: Sharma Achintya , Kumar Shukla Anoop , Singh Onkar , Sharma Meeta 
Published: February 2022

Abstract
Worldwide, governments of many countries are worried about global warming due to pollution created by burning fossil fuels to meet energy demand. Nonetheless, they are bothered about the finite availability of fossil fuels on the planet. As a result, it is desirable to reduce dependency on nonrenewable fuels and replace them with renewable energy to meet energy demand. Solar energy is the most cost-effective fossil-fuel replacement. However, the investigators are apprehensive about the resourceful use of solar energy. This led the researcher’s attention to the organic Rankine cycle (ORC), which might be integrated with the standard energy production cycle to make the most of the available energy. The present study performs the thermodynamic investigation of the integrated ORC in the solar-assisted gas turbine cycle. The acquired results reveal that integrated ORC in solar-assisted gas turbine cycle yields an increment in efficiency from 34.57 % to 69.89 % for the solar-assisted gas turbine pressure ratio of 16 bar, the ambient temperature of 300 K with ORC’s pressure ratio of 4 bar, and ORC turbine inlet temperature of 443 K.
Solar preheat with significant Thermodynamics Parameter Scrutiny of Energetic, Economic and Environmental Analysis in Tri-generation System.
Authors: Mani Mishra Krishna , Singh Dr Onkar 
Published: February 2022

Abstract
The solar tri-generation system can enhance the use of solar energy in residences. In this paper, an evaluation of the performance and operating parameters of an absorption sub-cooled compression hybrid cooling (ASCHC) configuration based on the pairing of photovoltaic thermal (PVT) collectors is presented. The work includes the multi-culmination fractionation and chiller originator to the Natural Rankine sequence system to evaluate the critical thermodynamic parameters such as irreversibility ratio, fuel depletion ratio, improvement potential, and total exergy loss of the system. The study was carried out using the first law and second law of thermodynamics applied to each component of each system. Solar absorption-subcooled compression hybrid cooling system (SASCCHC) is a novel cooling system that consistently meets the demand of cooling load with solar irradiance change. It is a very efficient and economical solar cooling system. The hybrid system’s performance is higher due to the improvement of the evaporator temperature of the absorption subsystem. However, SASCCHC is complicated in terms of working process and performance simultaneously due to the coupling of the absorption and compression subsystems. In the prior methodologies, there is a lack of electrical output performances of PVT collectors. It is found that previous studies do not consider the changeable storage tank temperature, exergy destruction rate estimation, and scrutinizing of thermodynamic parameters, which are significant potential. The present work incorporates the parabolic channel collector to estimate the exergy destruction rate, which increases the output working fluid temperature to a wide range significantly. Due to this, the proposed analysis’s outcome proficiently increases fuel depletion ratio and decreases exergy loss.
Design and analysis of Microcontroller based air scrubber using ANSYS CFD
Authors: Singh Shreyas , Tyagi R K 
Published: February 2022

Abstract
The important part for human survival is air the and growing pollution in the environment is a major concern for mankind therefore there is a need for a device is that can remove the gaseous components in the air molecules. With the use of thermoplastic elements, gas-liquid absorption can occur. The concept of scrubber for the absorption of gases was introduced in late 1980 and with the growth of modern techniques, the gas liquids absorption and phase change is been studied for a very long time. A packed column is process equipment, and it is widely used in industries that produce toxic elements. Bed scrubber washing technique for removal of gaseous contaminants to a large extent bus stop with the use of a microcontroller for monitoring the emissions the basic idea of installing this machine in the end or environment for residential and commercial use is a need of the hour. The work relates to the design and performance of the back scrubber and the study of the practical approach results by using it in an indoor environment. The use of IoT in this process is enhancing its quality and we are adding a step towards optimizing the air pollution standards. As the government has taken a lot of efforts for halting the growth of air contaminants by implementing some loss on engine combustion so the work is innovation in the field of air pollution and control.
Geothermal energy-based combined cooling heating and power system
Authors: Kishore Rawat Aditya , Kumar Shukla Anoop , Sharma Meeta , Kumar Singh Ashok 
Published: February 2022

Abstract
This paper studied the geothermal energy-based combined cycle for power cooling and heating purposes. The power system consists of a double flash power cycle, whereas the LiBr-H2O refrigeration absorption cycle is used for the cooling effect. The exhausted geothermal energy from the separator is further utilized for hot water to domestic application in this system. Under the condition of 200°C geothermal water temperature, the overall efficiency of the cycle is coming out 73%, which shows that the heat lost is very less, i.e., maximum heat is utilized in this cycle. The steam turbine work is 759.24 KW, whereas the COP of vapor absorption refrigeration is 0.685, and the leading coefficient of performance of the process is 0.85 working on optimal conditions. The COP of the system increases with an increase in generator temperature, but with an increase in evaporator and condenser temperature, vapor absorption cycle performance decreases.
Weibull Analysis Applications in Unexpected Electrical Breakdown of Ion Thruster
Authors: Zhang X E , Zhang T P , Li D T , Li X 
Published: February 2022

Abstract
The unexpected electrical breakdown (UEBD) of ion thruster is a critical problem. It directly affects the reliability and performance of the ion thruster. The basic UEBD characteristics and Weibull theory are introduced. The self-consistency and applicability of Weibull analysis for UEBD study are discussed. The UEBD period is a proper characteristic variable for Weibull analysis. The approaches to study the factors affecting the UEBD period are presented: (i) distinguishing the effect of coupled factors with the shape parameter of a mixed Weibull distribution, and (ii) studying the effect of a single factor with its respective parameters of the Weibull distribution. The factors discussed include electric field strength, grid material, and ion density. Further aspects to investigate involving the coupling of these factors and mechanisms are prospected.
Numerical Simulation of Hydrofoil Cavitation
Authors: Yin Rui , Liu Heng , He Zhi-Yuan 
Published: February 2022

Abstract
A contrastive analysis was conducted on the lift and drag performance, pressure and gas-phase volume fraction of NACA4412 hydrofoil under different conditions of the cavitation number and the angle of attack based on CFD. The results are obtained as follows: after hydrofoil cavitation, the lift coefficient decreased and the drag coefficient increased with the decrease of the cavitation number, and supercavitation can reduce the drag coefficient locally; the pressure difference between the upper and lower surfaces of the hydrofoil decreased and the cavitation zone on the upper surface became larger with the decrease of the cavitation number; the cavitation zone of the hydrofoil originated from the leading edge; the length of the cavitation zone under large cavitation numbers first increased and then decreased with the increase of the angle of attack, and the zone moved towards the leading edge; the cavitation zone under small cavitation numbers covered almost the entire upper surface of the hydrofoil.
Numerical Simulation of Hydrofoil Cavitation in Pitching Motion
Authors: Yin Rui , Fan Yu-Hang , He Zhi-Yuan 
Published: February 2022

Abstract
Based on CFD, the NACA4412 pitching motion hydrofoil is compared and analyzed for the lift/drag coefficient, the pressure and the gas volume fraction at different attack angles. The result is that the lift/drag coefficient curve of the dynamic hydrofoil is a closed curve. When the hydrofoil is pitching up, the lift/drag coefficient will be generally greater than that in the static state, which first increases and then decreases as attack angles increases. When the hydrofoil is down, the lift/drag coefficient will be generally smaller than that in the static state, which first decreases and then increases as attack angles decreases. Moreover, when the hydrofoil is pitching upwards, there will be a sudden change in pressure on the subsurface, resulting in an extreme value. In addition, there is more comprehensive cavitation on the upper surface of the dynamic hydrofoil, and local cavitation on the subsurface.
Dynamic Analysis and Vibrations Research on Multi-Degree of Freedom Shear Structures
Authors: Dai Pengyi , Yang Shiyue , Ye Shuchen , Tang Zhengheng 
Published: February 2022

Abstract
Vibration is everywhere in of our daily life. This paper studies the effect of rectangular pulse and free vibration on multi-degree of freedom systems. An undamped three-floor shear frame structure subjected to rectangular pulse and a damping three-floor shear building considered free vibration is investigated with respect to natural frequencies, mode shapes, and displacements of each floor level. This paper assumes the three-story shear building structure discussed has orthogonal damping, and the fundamental frequency will not change over time, which means that the mode shape of the system does also not change with time. In addition, the modal superposition method and Duhamel integrals are useful to study the response of the various vibration systems. In this work, it can be concluded that the main response is due to the vibrations’ first mode, even though all its mode shapes can lead to free vibration response. For amplitude of the motion, it will change with the frequency of excitation. When the non-periodic impulse is applied, the forced vibration will be different in the short duration of the impulse with the free vibration phase.
Analysis of the residual stress in additive manufacturing of Ti-6Al-4V
Authors: Liu Junjun , Jiang Hao , Lei Zhenkun , Bai Ruixiang , Yu Shen 
Published: February 2022

Abstract
Minimizing the residual stress build-up in metal-based additive manufacturing plays a pivotal role in selecting a particular material and technique for making an industrial part. However, there are still some limitations for this application, especially the unfavourable final shape and undesired macroscopic properties of metallic parts built in additive manufacturing systems. The distortion or crack due to the residual stress of these parts leads usually to severe problems for some kinds of metal additive manufacturing technology. Therefore, it is necessary to study the distribution of residual stress in the process, which can provide an important reference for the process control of laser cladding. Taking Ti-6Al-4V (TC4) alloy as the research object, a nonlinear sequential thermal mechanical coupling model is established by combining the finite element numerical simulation and experimental deformation measurement. A least squared cost function between the Finite Element Cladding model and the experimental deformation measurement is proposed, and the finite element model updating method is constructed to retrieve the heat source parameters of TC4 Alloy in laser cladding. By comparing the numerical results with the experiment, the rationality of the inversion results of heat source parameters is verified. After that, the stress near the cladding layer is analyzed, and the influence of temperature field on the mechanical field distribution is further studied through the affects of stress distribution.
Modeling and Simulation of mechanical equipment virtual maintenance training collaborative operation
Authors: Ma Yucheng , Xiao Jianbo , Zhang Qiaobin 
Published: February 2022

Abstract
Virtual maintenance technology is a useful supplement to mechanical manufacturing technology. Virtual maintenance training can improve training efficiency, reduce training cost and operating expenses. In order to realize multi person collaborative maintenance training under the maintenance simulation environment, this paper carries out the research on virtual maintenance training collaborative operation modeling and simulation. Firstly, the coordination of maintenance operation process is analyzed, and the operation tasks are reasonably and effectively decomposed according to the structure, function and relationship of maintenance objects; The logical relationship of collaborative maintenance operation is represented by collaborative network operation model; According to the mechanical equipment maintenance process and the characteristics of multi-agent, a hybrid cooperation model based on the role and multi-agent is constructed; In order to realize the concurrency control of collaborative operation, according to the logical relationship between tasks and resource constraints in the working environment, the locking method is used to control the execution of maintenance tasks; The mechanical equipment virtual training and assessment platform is constructed to realize the functions of disassembly process training, operation learning and process discussion.
Study on the compression and shear bearing capacity of composite stiffened plates with opening crack
Authors: Liu Yan , Zou Jianchao , Zhu Rongxin , Lei Zhenkun , Bai Ruixiang 
Published: February 2022

Abstract
In the process of manufacture and use, the composite stiffened plate will degrade and produce different types of cracks and damage, which limits its application. Therefore, it is significant to study the composite stiffened plate with cracks. Three-dimensional Hashin failure criterion and the gradual damage model of TAN parameter degradation are applied to simulate composite stiffened plate with long crack under uniaxial compression and pure shear load. The effects of crack angle on the ultimate compressive strength, shear strength and progressive damage of composite stiffened plates were investigated. The results show that the effect of crack angle on the compression performance of the stiffened plate is not simply linear, but the effect on the shear performance of the stiffened plate is more complicated, and The effect of crack angle on shear behavior is also related to the sequence of layer.
Optimal design of sealing structure of vehicular radar case door
Authors: Zhang Jicheng , Hua Haitao 
Published: February 2022

Abstract
The quality of antenna array environment control technology directly affects the reliability and service life of vehicular radar. The structure design of case door sealing is an important part of the environmental control technology of vehicular radar. The stress distribution analysis of case door sealing structure of vehicular radar antenna is carried out in this paper. Maximum stress of double-peaked sealing ring and stress distribution and deformation of case door panel are investigated through finite element analysis based on ABAQUS. In order to increase the reliability of sealing structure, the section size of double-peaked sealing ring and the spacing length of fasteners are optimized by the way of co-simulation optimal design method using ISIGHT. Through radial basis function neural network surrogate model, which is built based on Latin hypercube sample algorithm, the sensitivity of each optimization variable is analyzed. Meanwhile the optimal section size of double-peaked sealing ring and spacing length are obtained through non-dominated sorting genetic algorithm.
Development and Application of High-gloss Injection Molding Technology
Authors: Zhu Junjie , Qiu Zhiwen , Huang Wenhan 
Published: February 2022

Abstract
High-gloss injection molding technology is a new green injection molding technology based on dynamic mold temperature control strategy. Compared with the traditional injection molding technology, this technology can obviously improve the surface quality of products, and obtain high quality products with high gloss and no weld line. This paper introduces the principle and technological characteristics of high-gloss injection molding, analyzes the key technology and development of high-gloss injection molding. The key technologies of high-gloss injection molding mainly include high-gloss molding material, high-gloss mold, mold temperature control system, etc. Finally, the existing problems of high-gloss injection molding technology are analyzed, and the breakthrough direction in the field of injection molding in the future is proposed.
Research on lateral control of autonomous vehicle based on driver steering model
Authors: Qiu Runqi , Xin Shangfeng 
Published: February 2022

Abstract
Path tracking is an important issue in autonomous driving research. In this paper, based on the vehicle two-degree-of-freedom linear dynamics model for path tracking, the study of vehicle path tracking is carried out by applying model predictive control. A linear state space model of the vehicle is established based on the linear two-degree-of-freedom dynamics model, which provides the basis for the path tracking research. Based on the established state space model and the model predictive control method, the path tracking control algorithm is established using the preview point of driver steering model instead of the prediction part in the traditional model predictive control algorithm, which reduces the complexity of the algorithm and greatly improves the real-time performance. Finally, the effectiveness of the algorithm is verified by the joint software simulation of CarSim and Simulink.