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RESEARCH PAPERS

PV-Trombe Wall Design for Buildings in Composite Climates

[+] Author and Article Information
Jie Ji

Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, 230026, Chinajijie@ustc.edu.cn

Hua Yi, Wei He, Gang Pei

Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, 230026, China

J. Sol. Energy Eng 129(4), 431-437 (Nov 01, 2006) (7 pages) doi:10.1115/1.2770751 History: Received October 24, 2005; Revised November 01, 2006

The design of the novel PV-Trombe wall in Hefei is theoretically processed in this paper. The area of winter air vents and width of PV-Trombe wall are determined, the effects of two improvements (thermal insulation and shading curtain) are investigated, and the different operating results for winter heating and summer cooling are also obtained. Results show that if compared to the original PV-Trombe wall, after thermal insulating, the indoor temperature increases by 2.36°C in winter and decreases by 2.47°C in summer and the electrical efficiency decreases by <2%. After curtain shading, the indoor temperature decreases by 2.00°C in summer and the electrical efficiency increases by 1%. It is recommended that thermal insulation in both winter and summer and appending a shading curtain in summer are adopted for PV-Trombe wall, especially for the diurnally used PV-Trombe wall.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Schematic diagram of a PV-Trombe wall for (a) winter heating (b) summer cooling

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Figure 2

Weather data of Hefei (a) in winter (b) in summer

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Figure 3

Average indoor temperatures for winter heating

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Figure 4

Heat gain through the PV-Trombe wall with and without thermal insulation for winter heating

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Figure 5

Effect of AV∕AS on the daily average indoor temperature

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Figure 6

Effect of width on the daily average indoor temperature

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Figure 7

Polynomial fit of the curve with an AV∕AS of 0.5

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Figure 8

Average indoor temperatures for summer cooling

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Figure 9

Heat gain through the PV-Trombe wall with different operating conditions for summer cooling

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