Numerical study of the use of photovoltaic-Trombe wall in residential buildings in Tibet

Abstract In the current paper, the thermal and electrical performance of photovoltaic (PV)- Trombe wall (PV-TW) used in Tibetan residential buildings is investigated, and two performance influencing factors are analysed. Based on the original model, the PV-TW's model for residential buildings i...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy Journal of power and energy, 2007-12, Vol.221 (8), p.1131-1140
Main Authors: Ji, J, Yi, H, Pei, G, He, H. F., Han, C. W., Luo, C. L.
Format: Article
Language:English
Subjects:
Architecture
Design analysis
Design engineering
Mathematical models
Numerical analysis
Photovoltaic cells
Power efficiency
Residential buildings
Simulation
Solar cells
Thermal insulation
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Summary:Abstract In the current paper, the thermal and electrical performance of photovoltaic (PV)- Trombe wall (PV-TW) used in Tibetan residential buildings is investigated, and two performance influencing factors are analysed. Based on the original model, the PV-TW's model for residential buildings is updated, and then a simple design is performed for a given residential building in Tibet. The results show that the indoor temperature increases linearly, whereas the electrical efficiency remains almost constant, when the PV-TW's width increases. In addition, thermal insulation is found to be quite effective to improve the thermal performance, whereas it decreases the electrical performance only a little. After choosing a width of 1.70 m, the average indoor temperatures are 10.2 °C and 24.0 °C for PV-TW system with and without thermal insulation, respectively. Besides, the average electrical power can satisfy the requirement of 100W, with an electrical efficiency of 10–11 per cent.
ISSN:0957-6509
2041-2967
DOI:10.1243/09576509JPE364