International journal of energy science最新文献

Analysis of Influencing Factors of Water Flooding Productivity in Tight Oil Reservoirs 致密油油藏水驱产能影响因素分析

International journal of energy science Pub Date : 2023-07-26 DOI: 10.54097/ije.v3i1.10741

Ying Liu, Kai Wang

引用次数: 0

Research on Optimization Model of Heat Exchange Fin Structure in Energy Storage System 储能系统换热翅片结构优化模型研究

International journal of energy science Pub Date : 2023-07-26 DOI: 10.54097/ije.v3i1.10740

Xiangdong Wang, Yulong Guo, Hao Ren, Ting Li, Zhenxia Zhao

{"title":"Research on Optimization Model of Heat Exchange Fin Structure in Energy Storage System","authors":"Xiangdong Wang, Yulong Guo, Hao Ren, Ting Li, Zhenxia Zhao","doi":"10.54097/ije.v3i1.10740","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10740","url":null,"abstract":"Aiming at the thermodynamic problem of heat transfer fin in heat storage system, the solidification and melting model and thermodynamic conventional model are established by using simulation software, thermodynamic image processing and other methods. MATLABAB, COMSOL and other software are used to program the optimal rectangular fin spacing Angle and the optimal heat exchange fin structure. Firstly, based on the reason that the simulation software can simulate the heat transfer process of phase change material (PCM) in the actual process to the greatest extent, the plane modeling and thermodynamic equation method are used to analyze the distance Angle of the rectangular fin, and the melting solidification model is established, and the optimal solution is obtained. Finally, combined with the analytic hierarchy model and TOPSIS method, the triangular fin structure and rectangular fin structure were compared from three levels, namely, the heat sink area, temperature rise time and PCM maintenance time of different shapes. And create a heat transfer rate of return to more favorably analyze the data and visually present the comparative results.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78282699","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

Analysis and Method Overview of Photovoltaic Cell MPPT Technology 光伏电池MPPT技术分析与方法综述

International journal of energy science Pub Date : 2023-07-25 DOI: 10.54097/ije.v3i1.10773

Maoxin Du

引用次数: 0

Study on High-resolution Remote Sensing Image Scene Classification Using Transfer Learning 基于迁移学习的高分辨率遥感图像场景分类研究

International journal of energy science Pub Date : 2023-07-20 DOI: 10.54097/ije.v3i1.10764

Ouyang Qian

{"title":"Study on High-resolution Remote Sensing Image Scene Classification Using Transfer Learning","authors":"Ouyang Qian","doi":"10.54097/ije.v3i1.10764","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10764","url":null,"abstract":"Remote sensing image classification (RSIC) has been increasingly concerned and becoming a challenging task. Recently, deep convolutional neural networks (DCNN) offer the effective classification method include the capacity to handle high-dimensional data and to distinguish classes with very complex characteristics on the remote sensing community. However, the focus of these methods is on publicly available data sets in the field of remote sensing, there are few studies on RSIC composed of different benchmark datasets, which the complexity, diversity, and similarity of data greatly increase the difficulty of classification. In this paper, we reconstructed and selected one new dataset from two standard benchmark remote sensing datasets: UC Merged Land-Use and NWPU-RESISC45. We utilize three transfer learning frameworks to extract the high-level feature map and feed feature information into the proposed model for partial and full fine-tuning. Data augmentation technology is used to increase the number of training samples and dropout strategies to prevent overfitting. The experimental results demonstrate that the proposed methodology achieved remarkable performance in scene classification of overall accuracy: 90.1%,91.0%,93.3 with VggNet, DesNet, InceptionNet, respectively.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82406749","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

Analysis of Oil Displacement Effect of Ion Water Flooding Technology 离子水驱技术驱油效果分析

International journal of energy science Pub Date : 2023-07-03 DOI: 10.54097/ije.v3i1.9798

Wei Wei

引用次数: 0

Research on Influence of Eccentricity on Submersible Motor and its Solution 偏心对潜水电机的影响及解决方法研究

International journal of energy science Pub Date : 2023-07-03 DOI: 10.54097/ije.v3i1.9793

Xue Cao, Sen Yan, Chunming Lv

引用次数: 0

Research on Structural Design and Optimization of Battery Thermal Management System 电池热管理系统结构设计与优化研究

International journal of energy science Pub Date : 2023-07-03 DOI: 10.54097/ije.v3i1.9806

Lin Xi, Haoxiang Zhang, Mengxi Gao, Xiao Luo, Longjie Wang, Qian Wang

{"title":"Research on Structural Design and Optimization of Battery Thermal Management System","authors":"Lin Xi, Haoxiang Zhang, Mengxi Gao, Xiao Luo, Longjie Wang, Qian Wang","doi":"10.54097/ije.v3i1.9806","DOIUrl":"https://doi.org/10.54097/ije.v3i1.9806","url":null,"abstract":"The quality of the thermal management control strategy of the power battery is directly related to the energy consumption and the use state of the battery. The lithium battery will generate heat in the process of charging and discharging, which will lead to its own temperature rise, and the temperature rise will affect the performance of the lithium battery. In this paper, the simulation analysis from the cell to the battery pack is carried out, and the thermal simulation analysis of the air-cooled and liquid-cooled battery pack is carried out by using different control strategies. This paper mainly analyzes the thermal simulation of three discharge rates of single lithium battery under normal temperature environment, and designs the type I liquid cooled battery pack and type S liquid cooled battery pack. By setting the same liquid cooling control strategy, the inlet temperature is 20℃, the flow rate is 1m/s, the initial temperature of the battery in normal temperature environment is 25℃, and the cooling medium is ethylene glycol (50% water and ethylene glycol mixture). Through simulation analysis and comparison of the heat dissipation effect under the three discharge ratios, the research results show that the maximum temperature of the type I liquid cooled battery pack is lower than that of the type S liquid cooled battery pack, and the effect is more significant.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75317601","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

Comparative Analysis of Mining Damage Evaluation Methods for Mining Buildings 矿山建筑采动损伤评价方法的比较分析

International journal of energy science Pub Date : 2023-06-26 DOI: 10.54097/ije.v3i1.10150

Huipeng Zhai, Yanyan Peng, Kexin Xu, Weisen Bai, Jinhua Lu

{"title":"Comparative Analysis of Mining Damage Evaluation Methods for Mining Buildings","authors":"Huipeng Zhai, Yanyan Peng, Kexin Xu, Weisen Bai, Jinhua Lu","doi":"10.54097/ije.v3i1.10150","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10150","url":null,"abstract":"In the eastern mining areas of China, coal mining under buildings is more common. In order to alleviate the contradiction between coal mining under buildings and the relationship between workers and farmers, it is necessary to evaluate the degree of damage to buildings in a more objective and scientific way. Taking the buildings in the surface movement basin in Fengfeng Mining District of Handan City as the research object, 15 residential buildings with different degrees of damage were selected as sampling points, and data including four surface movement deformation parameters and five parameters of the buildings' own attributes were collected. In order to objectively calculate the influence of each indicator, two methods, namely principal component analysis and AHP entropy weighting, were used to calculate the influence of the indicators on the damage of the buildings. The results show that the index system selected in the paper is scientific and objective, with the building's own attributes accounting for 0.57. In the evaluation model using principal component analysis, the evaluation of the building damage evaluation results exactly matches the evaluation of the field survey results, which proves the feasibility of applying the method to the evaluation of mining damage in mining areas. The significance of Bartlett's test of 0.228 showed that the indicators were extremely uncorrelated, proving that the AHP entropy method of assigning weights is applicable to the evaluation of mining damage to buildings in mining areas in an indicator system where the indicators are weakly correlated.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"126 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74300891","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

Analysis and Optimization of Spray Structure for Mine Wet Dust Remover 矿井湿式除尘器喷雾结构分析与优化

International journal of energy science Pub Date : 2023-06-26 DOI: 10.54097/ije.v3i1.10537

Weili Wang

引用次数: 0

New Energy Vehicle Power Lithium Battery Model Establishment Method and SOC Estimation Research 新能源汽车动力锂电池模型建立方法及SOC估算研究

International journal of energy science Pub Date : 2023-06-26 DOI: 10.54097/ije.v3i1.10144

Hua Ou, Hao Wu

{"title":"New Energy Vehicle Power Lithium Battery Model Establishment Method and SOC Estimation Research","authors":"Hua Ou, Hao Wu","doi":"10.54097/ije.v3i1.10144","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10144","url":null,"abstract":"As the main source of power for pure electric vehicles, new energy vehicle power lithium batteries are also a key technology that restricts the development of pure electric vehicles, and can directly affect the driving performance of vehicles. A reliable and efficient management system (Battery Management System, BMS) can allow the lithium-ion battery to output its best performance stably, while ensuring that the battery has a long enough service life. State of charge (SOC) estimation plays an important role in Li-ion battery management systems. The establishment of the battery working model is an important part of the state of charge estimation. Therefore, higher requirements are put forward for the establishment of the battery model. At the same time, the error of the subsequent data processing and estimation results is smaller, and the Kalman filter is often used for processing. This paper starts from the current situation of model research and improvement, focuses on the equivalent circuit model, analyzes the advantages and disadvantages of each model, and summarizes the comparative research on the analysis and processing effect of Kalman filter. And further experiment verification of SOC estimation through battery test experiments and algorithms, use Thevenin model, use least squares method for parameter identification, and finally use Kalman filter for SOC estimation, according to the analysis of the results, the fitting accuracy is 1.69%, provided by battery research a strong theoretical foundation.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76990685","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