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TECHNICAL PAPERS

Solar-Assisted Induced Ventilation of Small Field Structures

[+] Author and Article Information
S. Oz, S. Fogel, V. Dubovsky, G. Ziskind, R. Letan

Heat Transfer Laboratory, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva 84105, Israel

J. Sol. Energy Eng 126(2), 781-788 (May 04, 2004) (8 pages) doi:10.1115/1.1669029 History: Received January 01, 2003; Revised November 01, 2003; Online May 04, 2004
Copyright © 2004 by ASME
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References

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Figures

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Overall view of the experimental set-up
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Schematic view of the experimental set-up
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Temperature measurements for the system with glass covers, without a chimney, closed in the morning and opened in the afternoon
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Temperatures for the system with glass covers and a chimney, closed in the morning and opened at about 14:00: a) measured temperatures inside the system and of the metal sheets; b) measured and simulated temperatures inside the first and second stories; c) measured and simulated temperatures inside the third story
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Experimental results for the system with glass covers and a chimney, opened from the morning: a) temperatures inside the system and of the metal sheets in summer; b) comparison of the temperatures of the metal sheets in summer and autumn
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Temperature measurements in the control experiments: a) the system closed for a whole day. b) the system opened from the morning and then closed at 15:45
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Comparison of the heated surfaces temperature, with and without water tank on the roof of the system
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Simulated steady-state temperature distribution inside the structure and temperature evolution during the transient ventilation
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Air velocity in ventilated state: a. simulated velocity distribution for the solar-assisted ventilated state and typical measured velocity values, m/s; b. simulated vector flow field for the solar-assisted ventilated state; c. simulated vector flow field for the laboratory model with an electrical heated plate and typical measured velocity values, m/s

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