Feasibility study of MgSO4 + zeolite based composite thermochemical energy stores charged by vacuum flat plate solar thermal collectors for seasonal thermal energy storage
Feasibility study of MgSO4 + zeolite based composite thermochemical energy stores charged by vacuum flat plate solar thermal collectors for seasonal thermal energy storage
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DOI：
10.1016/j.renene.2019.05.135
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发表时间：
2020-01
期刊：
影响因子：
8.7
通讯作者：
D. Mahon;P. Henshall;G. Claudio;P. Eames
中科院分区：
文献类型：
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作者：
D. Mahon;P. Henshall;G. Claudio;P. Eames
太阳能热技术的主要缺点，尤其是在家庭环境中，是在太阳辐照度充足且通常不需要加热时进行热能收集。热化学储能（TCES）提供了一种跨季节储存热能的方法，且热量损失很少。太阳能集热器 (STC) 和 TCES 系统的结合将允许以低碳方式满足各种不同的供暖应用，例如家庭空间和热水供暖以及低温工业过程热应用。本文描述并评估了拉夫堡大学目前正在开发的两种新技术的可行性； i) 真空平板 STC 和 ii) 复合 TCES 材料结合在一起形成一个系统，旨在全年按需存储和供应热能。复合 TCES 材料的实验结果以及 STC 的预测性能在开发的模型中使用，以评估概念性 TCES + STC 系统可行性的关键指标，包括：充电时间、投资回收期、每千瓦时成本、节能和二氧化碳排放。本文展示了适合家庭使用的概念性 TCES + STC 系统的经济、能源和碳节约潜力。
A primary drawback of solar thermal technologies, especially in a domestic setting, is that collection of thermal energy occurs when solar irradiance is abundant and there is generally little requirement for heating. Thermochemical Energy Storage (TCES) offers a means of storing thermal energy interseasonally with little heat loss. A combination of a Solar Thermal Collector (STC) and TCES system will allow a variety of different heating applications, such as domestic space and hot water heating as well as low temperature industrial process heat applications to be met in a low carbon way. This paper describes and assesses the feasibility of two novel technologies currently under development at Loughborough University; i) an evacuated flat plate STC and ii) composite TCES materials, coupled together into a system designed to store and supply thermal energy on demand throughout the year. Experimental results of composite TCES materials along with predicted performance of STC's are used within a developed model to assess key metrics of conceptual TCES + STC systems feasibility, including; charging time, payback time, cost/kWh, energy savings and CO2savings. This paper demonstrates the economic, energy and carbon savings potential of conceptual TCES + STC systems suitable for domestic use.