Design of solar enhanced natural draft dry cooling tower for solar thermal power plants

Guan, Zhiqiang, Gurgenci, Hal and Zou, Zheng (2016) Design of solar enhanced natural draft dry cooling tower for solar thermal power plants. International Association for Shell and Spatial Structures Journal, 57 1: 97-103. doi:10.20898/j.iass.2016.187.763


Author Guan, Zhiqiang
Gurgenci, Hal
Zou, Zheng
Title Design of solar enhanced natural draft dry cooling tower for solar thermal power plants
Journal name International Association for Shell and Spatial Structures Journal   Check publisher's open access policy
ISSN 1028-365X
1996-9015
Publication date 2016-03-12
Year available 2016
Sub-type Article (original research)
DOI 10.20898/j.iass.2016.187.763
Open Access Status Not Open Access
Volume 57
Issue 1
Start page 97
End page 103
Total pages 7
Place of publication Madrid, Spain
Publisher International Association for Shell and Spatial Structures
Language eng
Abstract For concentrated solar thermal (CST) power plants located in dry and arid areas, dry cooling is the only cost effective alternative. If using existing dry cooling technology, the CST power generation will be reduced significantly at high ambient temperatures. This paper presents design options of a novel cooling tower design concept with the potential to maintain the design-point performance even on very hot days. In this new concept, a natural draft dry cooling tower is modified by adding a solar collector around its base. The function of the solar collector is to make the air inside the cooling tower hotter so the buoyancy force increases. In a natural draft dry cooling tower, increased buoyancy means increased air flow rate through the heat exchangers and, therefore, increased heat transfer capacity. The end result is power plant efficiencies significantly higher than what could be achieved with the unmodified design.
Keyword Solar power
Natural draft cooling tower
Heat exchanger
Dry cooling
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Wed, 04 May 2016, 02:10:01 EST by Zhiqiang Guan on behalf of School of Mechanical and Mining Engineering