Modelling and performance analysis of a new concept of integral collector storage (ICS) with phase change material
Modelling and performance analysis of a new concept of integral collector storage (ICS) with phase change material
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DOI：
10.1016/j.solener.2019.03.032
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发表时间：
2019-05-01
期刊：
影响因子：
6.7
通讯作者：
Fabrizio, Enrico
中科院分区：
文献类型：
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作者：
Bilardo, Matteo;Fraisse, Gilles;Fabrizio, Enrico
太阳能家用热水(SDHW)系统在当今的应用中代表着一种不断发展的技术。随着欧洲联盟推动的新指令，建筑物中产生的可再生能源份额将进一步增加。因此，研究如何提高可再生能源的热生产效率是最重要的。这项研究旨在研究用于DHW生产的集成集热存储(ICS)原型的能量性能。这种ICS代表了一种新的概念技术，在同一设备内集成了平板吸收器和具有相变材料(PCM)的存储部分，通过填充甲醇的热管连接。这项研究的一个目的是探索一种可能的替代传统太阳能系统的方法，目的是在不影响能源性能的情况下降低投资成本和提高系统可靠性。能量评估是在工程方程求解器(EES)环境中使用数值模型进行的，遵循电气类比方案。在通过实验数据进行验证过程后，启动了年度模拟，以估计原型的生产率和太阳能份额。所获得的结果使得能够进行全球能源评估，并与类似系统进行比较，并确定这项新技术的优缺点。
Solar Domestic Hot Water (SDHW) systems represent a constantly evolving technology in today's applications. With the new directives promoted by the European Union the renewable energy share produced in buildings will tend to increase further. Research on how to increase the efficiency of the thermal production from renewable energy are therefore of the foremost importance. This study aims to investigate the energy performance of an integral collector storage (ICS) prototype for DHW production. This ICS represents a new concept technology, integrating inside the same device a flat plate absorber and a storage section with phase change material (PCM) connected by heat pipes filled with methanol. An objective of this study was to investigate a possible alternative to conventional solar systems, with the aim of reducing investment costs and improving system reliability without compromising energy performance. The energy assessment was carried out using a numerical model in the Engineering Equation Solver (EES) environment, following an electrical analogy scheme. After a validation process by means of experimental data, a yearly simulation was launched in order to estimate the productivity and the solar fraction of the prototype. The results obtained allowed a global energy evaluation and a comparison with similar systems and to identify the pros and cons of this new technology.