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Energies 2013, 6(1), 145-163; doi:10.3390/en6010145

Parameterization Studies of Solar Chimneys in the Tropics

*  and
Department of Building, School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore
* Author to whom correspondence should be addressed.
Received: 30 October 2012 / Revised: 17 December 2012 / Accepted: 21 December 2012 / Published: 7 January 2013
(This article belongs to the Special Issue Energy Efficient Buildings and Green Buildings)
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The paper examines the effect of the solar chimney’s stack height, depth, width and inlet position on the interior performance (air temperature and speed at 1.20 m height above the ground) as well as proposes an optimal tropical solar chimney design. Simulations show that the output air temperature remains constant while the solar chimney’s width is the most significant factor influencing output air speed. The solar chimney’s inlet position has limited influence on the output air speed although regions near the solar chimney’s inlet show an increase in air speed. Furthermore, a regression model is developed based on the solar chimney’s stack height, depth and width to predict the interior air speed. To optimize solar chimney in the tropics, the recommendation is to first maximize its width as the interior’s width, while allowing its stack height to be the building’s height. Lastly, the solar chimney’s depth is determined from the regression model by allocating the required interior air speed.
Keywords: solar chimney; tropics; parameterization; regression solar chimney; tropics; parameterization; regression
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Tan, A.Y.K.; Wong, N.H. Parameterization Studies of Solar Chimneys in the Tropics. Energies 2013, 6, 145-163.

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