Performance and economic evaluation of a solar-air hybrid source energy heating system installed in cold region of China
Performance and economic evaluation of a solar-air hybrid source energy heating system installed in cold region of China
复制标题
我国寒冷地区太阳能-空气混合源供暖系统性能及经济评价
DOI：
10.1016/j.jobe.2022.104796
复制
发表时间：
2022-06
影响因子：
6.4
通讯作者：
Lvlin Jiang
中科院分区：
文献类型：
--
作者：
Haifei Chen;Wenying Fan;Baorui Cai;Guiqiang Li;Yunjie Wang;Yousef Golizadeh Akhlaghi;Yanlong Wang;Yutong Sun;Lvlin Jiang
提出了一种太阳能-空气源蓄能供暖系统（SASES-HS），解决了低温环境下供暖能耗高、供暖难的问题。该系统通过耦合太阳能、空气能和相变能，通过两级热泵为用户端供暖。为了分析系统的可行性，建立了系统的数学模型，搭建了实验平台。选择了一个典型的实验条件，详细分析了系统的性能。结果表明，该系统可在零下20 ℃的严寒环境中，连续24 h为建筑物提供近60 ℃的高温热水，换热温差高达80 ℃。此外，该系统以比单级热泵系统更高的性能系数运行。COP在白天可以达到4.1的水平，在夜间低至2.5。该系统的运行费用仅分别占燃煤锅炉和空气源相变热泵的65.8%和88.4%。该系统的CO2排放量仅为燃煤锅炉和空气源相变热泵的57.5%和88.4%。从运行性能和经济环境效益分析来看，该系统值得在北方寒冷地区推广使用。·研制了太阳能-空气源相变储能系统。·换热温差高达80 ℃，平均COP为3.7。该系统的运行成本和二氧化碳排放量远低于传统的加热方法。
This paper proposes a solar-air source energy storage heating system (SASES-HS), which can solve the problems of high energy consumption and difficult defrosting when the ambient temperature is low. By coupling solar energy,air energy and phase change energy, the system heats the end of the user through a two-stage heat pump. In order to analyze the feasibility of the system, the mathematical model of the system is established, and an experimental platform is built. A typical experimental condition was chosen to analyze the performance of the system in detail. The results show that the system can continuously provide high-temperature hot water of nearly 60°C for buildings in a severe cold environment of −20°C for 24 h, and the heat exchange temperature difference is as high as 80°C. In addition, the system operates with a higher coefficient of performance than a single-stage heat pump system . The COP can reach the level of 4.1 during the day and as low as 2.5 at night. The operating cost of the system only accounts for 65.8% and 88.4% of the coal-fired boiler and the air source phase change heat pump, respectively. And the CO 2 emissions of this system only account for 57.5% and 88.4% of the coal-fired boiler and the air source phase change heat pump, respectively. In view of the analysis of operational performance and economic and environmental benefits, it is found that the system is worth popularizing and using in the northern cold regions. • A solar-air source phase change energy storage system is developed. • The heat exchange temperature difference is as high as 80 o C, and the average COP is 3.7. • The operating costs and CO 2 emissions of the system are much lower than traditional heating methods.
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影响因子：
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作者：
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DOI：
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发表时间：
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期刊：
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影响因子：
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