PCM-air heat exchangers for free-cooling applications in buildings: Empirical model and application to design
PCM-air heat exchangers for free-cooling applications in buildings: Empirical model and application to design
复制标题
DOI：
10.1016/j.enconman.2008.11.009
复制
发表时间：
2009-03
影响因子：
10.4
通讯作者：
A. Lázaro;P. Dolado;J. M. Marín;B. Zalba
中科院分区：
文献类型：
--
作者：
A. Lázaro;P. Dolado;J. M. Marín;B. Zalba
本文提出了新的设计结论的实验结果和经验模型的基础上，一个真正规模的原型PCM空气换热器。根据实验结果，建立了一个经验模型，旨在模拟在不同情况下，在测试的换热器的热行为。这些模拟被用来评估其应用的技术可行性。由于PCM的热性能随温度而变化，PCM热交换器作为临时系统工作，因此其设计必须基于临时分析。这项工作表明，PCM的选择标准必须包括功率需求。PCM-空气热交换所获得的结论可用于选择PCM用于使用测试几何形状的其他热交换器应用。
This paper presents novel design conclusions based on the experimental results and on an empirical model for a real-scale prototype of a PCM-air heat exchanger. From experimental results, an empirical model was built aimed at simulating the thermal behavior in the tested heat exchanger in different cases. These simulations were used to evaluate the technical viability of its application. Since the thermal properties of PCM vary with temperature, a PCM-heat exchanger works as a transitory system and therefore, its design must be based on transitory analysis. This work shows that PCM selection criteria must include the power demand. The conclusions obtained for the PCM-air heat exchange can be useful for selecting PCM for other heat exchanger applications that use the tested geometry.