Study on Optimal Operating Mode of a Thermosyphon Heat Exchanger Unit in a Shopping Center
Publication: Journal of Energy Engineering
Volume 139, Issue 4
Abstract
In order to meet the operating requirements during both winter and summer, a thermosyphon heat exchanger unit used to recover energy from the exhaust air needs to be adjusted for its inclination angle by a regulation mechanism. In this paper, the factors that affect the heat transfer efficiency of the thermosyphon heat exchanger was analyzed and the unit practical operating data in a shopping center was studied. The unit optimal operating mode was acquired due to the influence of the unit inclination angle on the temperature effectiveness under a wide temperature change of the outdoor air. In addition, the inclination angle regulation mechanism uses a programmable logic controller (PLC) to control the unit to work at the optimal operating mode. The unit charged with R410A working fluid worked well and was highly effective.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (51076003).
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Information & Authors
Information
Published In
Journal of Energy Engineering
Volume 139 • Issue 4 • December 2013
Pages: 275 - 280
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Sep 5, 2012
Accepted: Feb 22, 2013
Published online: Nov 15, 2013
Published in print: Dec 1, 2013
Discussion open until: Apr 15, 2014
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