Dry-Wet Tower Evaporation and Fog Psychometrics

by Thomas E. Croley, II, (A.M.ASCE), Asst. Prof. and Research Engr.; Div. of Energy Engrg., Iowa Inst. of Hydraulic Research, Univ. of Iowa, Iowa City, Iowa,
Mow-Soung Cheng, Research Asst.; Iowa Inst. of Hydraulic Research, Univ. of Iowa, Iowa City, Iowa,
V. C. Patel, Assoc. Prof. and Research Engr.; Div. of Energy Engrg., Iowa Inst. of Hydraulic Research, Univ. of Iowa, Iowa City, Iowa.,


Serial Information: Journal of the Power Division, 1976, Vol. 102, Issue 1, Pg. 21-33


Document Type: Journal Paper

Abstract: To determine the adequacy of existing dry-wet tower configurations and to evaluate proposed combinations of dry-wet towers with regard to various environmental consequences, it is necessary to calculate water consumption and fogging magnitude for each cooling configuration, at all meteorological conditions which can occur at a specific site. Each comprehensive calculations must be made while maintaining practical manageability of the resulting models to be usable for a large number of repetitive calculations and to interface with existing thermodynamic models. This paper describes the basic psychrometric models and definitions that are necessary for a comprehensive consideration of water consumption and fogging magnitude that are associated with two parallel air path dry-wet cooling tower configurations. Brief comments on the integrated thermodynamic models and relevant outputs are examined and the use of the psychrometric models is illustrated with example calculations.

Subject Headings: Cooling towers | Dewatering | Cooling (wastewater treatment) | Thermodynamics | Water management | Meteorology | Site investigation

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