Lei Xu, Yimin Deng, Long Gao, Yuying Zhang, J. Li, Long Zhang, Xiang Ji
{"title":"Characteristic analysis and parameter optimization of seasonal solar thermal storage heating system","authors":"Lei Xu, Yimin Deng, Long Gao, Yuying Zhang, J. Li, Long Zhang, Xiang Ji","doi":"10.1680/jener.22.00051","DOIUrl":null,"url":null,"abstract":"In this study, the seasonal solar thermal storage and heating system in the Jilin region of China is considered, and a system model is established by using the TRNSYS software under the heat storage and heating modes. The operating characteristics of the system are analyzed during the complete heat storage and heating seasons, and the economic cost of the system is minimized by optimizing the ratio of the collector area to the water tank volume. The results show that most of the heat is stored in the system in May, and the maximum heat loss from the tank occurs in October. The maximum solar fraction is 47.85%, maximum heat loss rate of the water tank is 29.82%, and energy efficiency ratio of the system is 1.70. The optimized ratio of the heat storage tank volume to solar collector area is 4.5, energy efficiency ratio of the system is 1.67, and the annual cost is ¥441500.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Civil Engineers-Energy","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jener.22.00051","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, the seasonal solar thermal storage and heating system in the Jilin region of China is considered, and a system model is established by using the TRNSYS software under the heat storage and heating modes. The operating characteristics of the system are analyzed during the complete heat storage and heating seasons, and the economic cost of the system is minimized by optimizing the ratio of the collector area to the water tank volume. The results show that most of the heat is stored in the system in May, and the maximum heat loss from the tank occurs in October. The maximum solar fraction is 47.85%, maximum heat loss rate of the water tank is 29.82%, and energy efficiency ratio of the system is 1.70. The optimized ratio of the heat storage tank volume to solar collector area is 4.5, energy efficiency ratio of the system is 1.67, and the annual cost is ¥441500.
期刊介绍：
Energy addresses the challenges of energy engineering in the 21st century. The journal publishes groundbreaking papers on energy provision by leading figures in industry and academia and provides a unique forum for discussion on everything from underground coal gasification to the practical implications of biofuels. The journal is a key resource for engineers and researchers working to meet the challenges of energy engineering. Topics addressed include: development of sustainable energy policy, energy efficiency in buildings, infrastructure and transport systems, renewable energy sources, operation and decommissioning of projects, and energy conservation.
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