Open AccessOptimization of building-integrated photovoltaic thermal air system combined with thermal storage
Author(s) -
Yetao Xiang,
Guohui Gan
Publication year - 2015
Publication title -
international journal of low-carbon technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 26
eISSN - 1748-1325
pISSN - 1748-1317
DOI - 10.1093/ijlct/ctv010
Subject(s) - photovoltaic system , phase change material , thermal energy storage , thermal , environmental science , transient (computer programming) , automotive engineering , materials science , nuclear engineering , computer science , process engineering , engineering , meteorology , electrical engineering , thermodynamics , physics , operating system
Photovoltaic (PV) combined with phase change material (PV/PCM) system is a hybrid solar system that uses a PCM to reduce the PV temperature and to store energy for other applications. This study aims to increase the integrated PV efficiency of buildings by incorporating PCM while utilizing the stored heat in PCM for controlling indoor conditions. Experiments have been carried out on a prototype PV/PCM air system using monocrystalline PV modules. Transient simulations of the system performance have also been performed using a commercial computational fluid dynamics package based on the finite volume method. The results from simulation were validated by comparing it with experimental results. The results indicate that PCM is effective in limiting temperature rise in PV device and the heat from PCM can enhance night ventilation and decrease the building energy consumption to achieve indoor thermal comfort for certain periods of time
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