The heat rejected and water evaporated in mechanical and natural draft cooling towers are critically evaluated by employing the Merkel, Poppe, and e–number-of-transfer-units methods of analysis, respectively, at different operating and ambient conditions. The importance of using a particular method of analysis when evaluating the performance characteristics of a certain fill material and subsequently employing the same analytical approach to predict cooling tower performance is stressed. The effect of ambient humidity and temperature on the performance of cooling towers employing the Merkel, e-NTU, and Poppe methods of analysis are evaluated.
Cooling Tower Performance Evaluation: Merkel, Poppe, and e-NTU Methods of Analysis
Contributed by the Advanced Energy Systems Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the AES Division December 4, 2002; final revision received October 20, 2003. Associate Editor: G. Reistad.
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Kloppers , J. C., and Kro¨ger, D. G. (February 9, 2005). "Cooling Tower Performance Evaluation: Merkel, Poppe, and e-NTU Methods of Analysis ." ASME. J. Eng. Gas Turbines Power. January 2005; 127(1): 1–7. https://doi.org/10.1115/1.1787504
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