Journal of Advanced Thermal Science Research最新文献

Thermal Effects of Alternative Environmentally Friendly Material Instead of Silicone in Battery Modules 电池模块中替代硅胶的环保材料的热效应

Journal of Advanced Thermal Science Research Pub Date : 2023-11-17 DOI: 10.15377/2409-5826.2023.10.2

Yiğitalp Gökmen, Gamze Gediz Ilis

{"title":"Thermal Effects of Alternative Environmentally Friendly Material Instead of Silicone in Battery Modules","authors":"Yiğitalp Gökmen, Gamze Gediz Ilis","doi":"10.15377/2409-5826.2023.10.2","DOIUrl":"https://doi.org/10.15377/2409-5826.2023.10.2","url":null,"abstract":"Nowadays, the demand for electric vehicles is increasing rapidly. One of the most important components of electric vehicles is the battery pack. The reduction of their carbon footprint and recyclability is getting more important. For that reason, the usage of environmentally friendly materials or production methods in their production should be studied. This paper aims to investigate an alternative material for silicone which is used to avoid vibration of the battery cells inside of the battery module. Synthesized Hydrogel, which is not hazardous to the environment, is suggested instead of silicone. Besides its environmentally friendly property, Hydrogel does not use any other curing process like silicone and thus reduces the curing process time and energy that is spent for the application of the silicone which is 100 oC and 5 hours. The heat generation of the battery cells inside of the battery module is also numerically analyzed with electrochemical thermal modeling and the comparison of the silicone and suggested Hydrogel material instead of silicone is performed. The results showed that Hydrogel can be used instead of silicone and this material can remove the curing process during the production of the module and can reduce the carbon footprint of the battery module.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139264041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Investigation on the Utilization of R470A for Air-Conditioning Systems Towards 2025 面向2025年的空调系统R470A利用研究

Journal of Advanced Thermal Science Research Pub Date : 2023-08-16 DOI: 10.15377/2409-5826.2023.10.1

A. Devecioğlu, V. Oruç

引用次数: 0

Combustion Performance of Hydrogen Direct Injection under Lean-burn Conditions for Power Generation 发电用稀燃条件下氢直喷燃烧性能研究

Journal of Advanced Thermal Science Research Pub Date : 2022-12-28 DOI: 10.15377/2409-5826.2022.09.7

Meiqi Yu, Hongliang Luo, Chang Zhai, Yanzhao An, K. Nishida

{"title":"Combustion Performance of Hydrogen Direct Injection under Lean-burn Conditions for Power Generation","authors":"Meiqi Yu, Hongliang Luo, Chang Zhai, Yanzhao An, K. Nishida","doi":"10.15377/2409-5826.2022.09.7","DOIUrl":"https://doi.org/10.15377/2409-5826.2022.09.7","url":null,"abstract":"This paper studies the combustion phenomenon of hydrogen (H2) direct injection (DI) in a modified spark ignition (SI) engine. As we known, ignition timing strongly correlates with combustion performance, especially for power output and efficiency. Therefore, different ignition timing varying among -20, -15, -10, -5, 0, 5, 10, 15, and 20 deg top dead center (TDC) are tested in this research. Besides, different H2 injection timings and injection pressures are also compared in this study. Moreover, as H2 usually favors lean-burn combustion, λ at 3, 3.5, and 4 are tested to find the lean-burn limitation. In order to obtain the engine speed influences on power output, finally 1500, 2000, and 2500 revolutions per minute (rpm) are evaluated in this study. Finally, thermal brake efficiency (BTE) and power output are analyzed. Results showed that power output and efficiency increase with the delay of ignition timing from -20 to 5 deg TDC and then decrease with delaying timing from 5 to 20 deg TDC. However, injection timing has less effect on the H2 combustion phenomenon. H2 lean-burn limitation is found that when λ is larger than 3, the efficiency decreases sharply. Moreover, both power output and efficiency firstly increase then decrease with higher engine speed and 2000 rpm is the best option for this small engine. Finally, by evaluating the contribution index, ignition timing and engine speed should be optimized first to achieve higher efficiency.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and Characterization of GG-LiCF3SO3-DMSO Gel Polymer Electrolyte for Potential Lithium-Ion Battery Application 锂离子电池用GG-LiCF3SO3-DMSO凝胶聚合物电解质的制备与表征

Journal of Advanced Thermal Science Research Pub Date : 2022-10-20 DOI: 10.15377/2409-5826.2022.09.6

N. Daud, N. Tamchek, I. Noor

{"title":"Preparation and Characterization of GG-LiCF3SO3-DMSO Gel Polymer Electrolyte for Potential Lithium-Ion Battery Application","authors":"N. Daud, N. Tamchek, I. Noor","doi":"10.15377/2409-5826.2022.09.6","DOIUrl":"https://doi.org/10.15377/2409-5826.2022.09.6","url":null,"abstract":"This work uses gellan gum (GG) natural polymer as the base polymer to prepare gel polymer electrolytes (GPEs). Lithium trifluoromethanesulfonate (LiCF3SO3) salt is used as a charge supplier, and dimethyl sulfoxide (DMSO) acts as a plasticizer to keep the electrolyte in gel form. Two electrolyte systems are formed, which are LiCF3SO3-DMSO liquid electrolytes and GG-LiCF3SO3-DMSO GPEs. Liquid electrolyte with a composition of 12.42 wt.% LiCF3SO3-87.58 wt.% DMSO (LN3 electrolyte) revealed the highest room temperature conductivity (σrt) of 9.14 mS cm-1. The highest σrt value obtained by the LN3 electrolyte is strongly influenced by the charge carrier concentration (n) relative to the mobility (µ). To form GPEs, GG is added to the LN3 electrolyte since this sample composition gave the highest σrt. The electrolyte of 2.00 wt.% GG-12.18 wt.% LiCF3SO3-85.82 wt.% DMSO (GN3 electrolyte) showed the highest σrt of 9.96 mS cm-1. The highest σrt value obtained by GN3 electrolyte is strongly influenced by µ rather than n. The conductivity-temperature study showed that the increase in conductivity for GG-LiCF3SO3-DMSO GPEs is controlled by an increase in n, not µ. Linear sweep voltammetry (LSV) for the GN3 electrolyte showed high electrochemical stability up to 4.8 V. Cyclic voltammetry (CV) illustrated the redox process in the GN3 electrolyte is reversible. A lithium-ion battery fabricated with GN3 electrolyte showed a good discharge performance up to 480 hours with an average voltage of 1.50 V discharged at a current of 0.001 mA. Based on this work, it can be concluded that natural polymer GG-based GPE has great potential for use in LIBs as a charge transport medium.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116070126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Laboratory Configurations for PCM-TES Materials: A Review PCM-TES材料的实验室配置:综述

Journal of Advanced Thermal Science Research Pub Date : 2022-09-26 DOI: 10.15377/2409-5826.2022.09.5

Ioana G. Munteanu, E. Tudose

{"title":"Laboratory Configurations for PCM-TES Materials: A Review","authors":"Ioana G. Munteanu, E. Tudose","doi":"10.15377/2409-5826.2022.09.5","DOIUrl":"https://doi.org/10.15377/2409-5826.2022.09.5","url":null,"abstract":"The global energy crisis and the negative impact on the environment of the existing technologies have constrained researchers to capture several types of waste energy using different technologies and materials. For heat, energy harvesting technologies include a major source, the sun, and as an effective storage media, phase change materials. The current review covers experimental laboratory configurations used for thermal energy storage (TES), mainly with phase change materials as working fluids. The required characteristics of PCM-TES materials are covered. Geometric configurations, starting with simple shell-and-tube heat exchanger (HX), other multiple constructive alternatives, plate HX, and also modular HX or fixed and fluidized beds systems are overviewed in order to concentrate on heat transfer characteristics important for TES systems operation and optimization. Emphasis falls on important constructive characteristics for thermal performance, such as the heat charge and discharge rates, within specific temperature ranges, depending on the type of TES fluid used, the energy storage capacity, or density. The advantages and disadvantages of each constructive piece of equipment are critically reviewed. Some comparisons among designs are also included, with an accent on beneficial alterations to improve thermal features.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122450149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Energy Saving and Environmental Protection Electric Power Grain Circulation Drying System 节能环保电力粮食循环干燥系统的研究

Journal of Advanced Thermal Science Research Pub Date : 2022-06-20 DOI: 10.15377/2409-5826.2022.09.4

Guiying Wang, F. Qiao, Zhongfen Yue

引用次数: 1

Comparative Study on Interphase Force Model of Gas-Liquid Two-Phase Bubbly Flow Based on OpenFOAM 基于OpenFOAM的气液两相气泡流相间力模型比较研究

Journal of Advanced Thermal Science Research Pub Date : 2022-06-07 DOI: 10.15377/2409-5826.2022.09.3

Chang Liu, Haochuang Wu, Wei Lu, D. Chen, Junjie Pan, Zhenzhong Li, Jintao Feng

引用次数: 0

Experimental Evaluation and Development of Artificial Neural Network Model for the Solar Stills Augmented with the Permanent Magnet and Sandbag 永磁沙袋增强太阳能蒸馏器人工神经网络模型的实验评价与开发

Journal of Advanced Thermal Science Research Pub Date : 2022-04-14 DOI: 10.15377/2409-5826.2022.09.2

Rishika Chauhan, Pankaj Dumka, Dhananjay R. Mishra

引用次数: 4

VFB Maintenance Methods: Technical and Economic Issues VFB维护方法:技术和经济问题

Journal of Advanced Thermal Science Research Pub Date : 2022-03-11 DOI: 10.15377/2409-5826.2022.09.1

Nicola Poli, Giacomo Marini, Andrea Trovò

{"title":"VFB Maintenance Methods: Technical and Economic Issues","authors":"Nicola Poli, Giacomo Marini, Andrea Trovò","doi":"10.15377/2409-5826.2022.09.1","DOIUrl":"https://doi.org/10.15377/2409-5826.2022.09.1","url":null,"abstract":"The VFB system has been extensively studied for almost 30 years. Several plants are installed around the world, with power and energy exceeding some MW and some MWh respectively and new companies are entering the growing market. However, a real widespread application of this technology is hindered by its high capital cost. One method to make these batteries more competitive on the market is to increase their cyclability by means of appropriate maintenance procedures. Some procedures are focused on physical treatments such as the remixing of the positive electrolyte with the negative one, which causes heat generation. Other methods are focused on chemical and electrochemical regeneration procedures which make use of chemical reducing agents, catalysts or electrochemical processes. The latter requires the use of an electrolysis system in order to restore the vanadium oxidation state to the correct ratio in the positive and negative electrolyte. In the first part of this work, an extensive description of VFB technology is presented while in the second part a description of the most important and realizable maintenance procedures with their impact on the system cost is shown, considering both operative and economical points of view.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126798217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Current Progress of the Titanium Preparation by Electrolysis in the Room-Temperature Ionic Liquid Electrolytes 室温离子液体电解制备钛的研究进展

Journal of Advanced Thermal Science Research Pub Date : 2021-12-28 DOI: 10.15377/2409-5826.2021.08.8

Handong Jiao

{"title":"The Current Progress of the Titanium Preparation by Electrolysis in the Room-Temperature Ionic Liquid Electrolytes","authors":"Handong Jiao","doi":"10.15377/2409-5826.2021.08.8","DOIUrl":"https://doi.org/10.15377/2409-5826.2021.08.8","url":null,"abstract":"Titanium is a beneficial metallic material due to its excellent properties. However, the large-scale application of titanium is inhibited by the high production cost of the Kroll process. To address this challenge, researchers have proposed many new strategies based on electrochemical technology over the past decades. Those electrochemical methods show potential practical value to replace the Kroll process. Nevertheless, many of them are conducted in high-temperature melts, limiting the rapid development of those methods. Accordingly, room-temperature electrolysis in ionic liquid electrolytes was employed in titanium production. At present, there is no systematic and in-depth summary on room-temperature titanium electrolysis, although many pathways in room-temperature melts have been reported. In this review, we briefly outline the development of the titanium electrolysis methods firstly and summarize the room-temperature titanium electrolysis in ionic liquid electrolytes.\u0000Furthermore, we have discussed the fundamental mechanisms and key challenges occurring in room-temperature titanium electrolysis. Finally, we proposed the opportunities and research direction on room-temperature titanium electrolysis. We hope this review will be a valuable roadmap for room-temperature titanium electrolysis.","PeriodicalId":244913,"journal":{"name":"Journal of Advanced Thermal Science Research","volume":"1006 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123106807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1