Seasonal thermal energy storage (STES) can be utilized to cover a portion or meet the whole space and water heat demands in residential and commercial buildings. With the scarcity of fuel resources, scientists have become aware of the importance of the utilization of thermal energy. An STES system can be charged using solar collectors to heat a storage medium when solar radiation is available. Solar irradiance is seasonal so this type of system can compensate for the shortage of energy in the winter by storing surplus solar energy in the summer. This study offers an innovative design of an STES system that takes advantage of the backfill space in a building’s underground foundation to install the thermal storage medium on the excavated surface among the support pillars’ base. To study the feasibility and the feasibility of such STES system, the design was simulated using the TRNSYS® tool where the STES medium was charged by a solar thermal system. The chosen building type was a four-story hotel located in three cities each with its unique climate: Potsdam (Germany), Zarqa (Jordan), and Doha (Qatar). The results showed the coverage rate of the building’s annual heat demand was 56%, 82%, and 84%, and the payback periods were 3.4, 4.4, and 29 years for Potsdam, Zarqa, and Doha, respectively. Zarqa is the most efficient and feasible for STES compared to the other two cities.

中文翻译：

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利用建筑物的地基作为季节性储热介质，以满足空间和水热需求

季节性热能存储（STES）可用于覆盖一部分或满足住宅和商业建筑中整个空间和水的热量需求。随着燃料资源的匮乏，科学家们已经意识到利用热能的重要性。当有太阳辐射时，可以使用太阳能收集器对STES系统充电，以加热存储介质。太阳辐射是季节性的，因此这种类型的系统可以通过在夏天存储多余的太阳能来弥补冬天的能源短缺。这项研究提供了STES系统的创新设计，该系统利用建筑物地下基础中的回填空间将蓄热介质安装在支撑柱基部之间的开挖表面上。为了研究这种STES系统的可行性和可行性，使用TRNSYS®工具对设计进行了仿真，其中STES介质由太阳能热系统充电。选择的建筑类型是一家四层楼的酒店，分别位于三个城市，每个城市都有其独特的气候：波茨坦（德国），扎尔卡（约旦）和多哈（卡塔尔）。结果表明，该建筑物的年度热需求覆盖率分别为56％，82％和84％，波茨坦，扎卡和多哈的投资回收期分别为3.4年，4.4年和29年。与其他两个城市相比，扎尔卡（Zarqa）是STES效率最高，最可行的方案。结果表明，该建筑物的年度热需求覆盖率分别为56％，82％和84％，波茨坦，扎卡和多哈的投资回收期分别为3.4年，4.4年和29年。与其他两个城市相比，扎尔卡（Zarqa）是STES效率最高，最可行的方案。结果表明，该建筑物的年度热需求覆盖率分别为56％，82％和84％，波茨坦，扎卡和多哈的投资回收期分别为3.4年，4.4年和29年。与其他两个城市相比，扎尔卡（Zarqa）是STES效率最高，最可行的方案。