Authors: HUANG Chun-hua, ZHAO Shun-an (China Institute of Water Resources and Hydropower Research, Beijing 100038, China)

Abstract: The heat-exchanger and cooling tower are the most important instruments to dissipate heat flux in the indirect-dry cooling system. The key technologies are the efficiency of the heat exchanger and the whole resistance of the heat exchanger and tower combination in technological design of dry cooling system. In this study introduced was a physical model of dry cooling tower with vertical heat exchangers. By the experimental investigation, the necessary parameters were measured, and then these data were analyzed. As a result, the computational formula of the whole resistance coefficient of the heat exchanger and tower combination was obtained. Then the computational formula can be conveniently used in the design of dry cooling tower.

Key words: indirect dry cooling, heat exchanger, resistance coefficient, physical model

Published in: Journal of China Institute of Water Resources and Hydropower Research, Vol. 9, No. 3, 2011

Article ID: 1672-3031 (2011) 03-0195-05