Seasonal solar thermal energy storage using thermochemical sorption in domestic dwellings in the UK
Seasonal solar thermal energy storage using thermochemical sorption in domestic dwellings in the UK
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DOI：
10.1016/j.energy.2018.10.066
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发表时间：
2019-01
期刊：
影响因子：
9
通讯作者：
Zhiwei Ma;Huashan Bao;A. Roskilly
中科院分区：
文献类型：
--
作者：
Zhiwei Ma;Huashan Bao;A. Roskilly
本文探讨了在英国国内应用的季节性太阳能热储能（SSTES）系统，使用氨基化学吸附的潜力。利用真实的气象数据，采用太阳能集热器模型、家庭供暖需求模型和化学吸附模型，对太阳能集热系统的动态充放电性能进行了模拟。工作盐的选择对系统的设计和动态性能有重要影响。CaCl 2 -4/8 NH3化学吸附在放电阶段使用低温加热设施时几乎可以满足100%的空间加热需求，但是，由于其相对较高的解吸温度和在Newcastle-upon-Tyne的有限的阳光，所需的太阳能集热器面积超过了住宅屋顶的通常可用空间。NaBr-0/5.25NH3化学吸附仅能贡献18.6%的供暖需求，因为在供暖季节的大部分时间内，排放的热量的温度不能达到所需的水平。研究的最佳方案是使用BaCl 2 -0/8 NH3化学吸附SSTES（45.2 m3存储体积）结合低温加热设施和30.5 m2太阳能集热器，其可以覆盖约57.4%的空间加热的住宅，热损失系数为150 W/K。
The present paper explored the potential of the seasonal solar thermal energy storage (SSTES) system using ammonia-based chemisorption for domestic application in the UK. The dynamic charging/discharging performance of the SSTES has been simulated using the real weather data with the solar thermal collector models, the domestic heating demand model and the chemisorption model. The selection of working salts has significantly influence on the system design and dynamic performance. The CaCl2-4/8NH3chemisorption can satisfy almost 100% of space heating demand when using low temperature hating facility during discharging stage, however, due to its relatively higher desorption temperature and limited sunlight available in the Newcastle-upon-Tyne the required solar collectors area exceeds the commonly available space of dwelling roof. The NaBr-0/5.25NH3chemisorption is only able to contribute 18.6% of heating demand because the temperature of the discharged heat cannot reach the required level for most of the time in the heating season. The best scenario studied was using BaCl2-0/8NH3chemisorption SSTES (45.2 m3storage volume) combined with low temperature heating facilities and a 30.5 m2solar collector, which can cover about 57.4% of space heating for a dwelling with a heat loss coefficient at 150 W/K.