Performance Characteristics of a Closed Circuit Cooling Tower with Multi Path
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Performance Characteristics of a Closed Circuit Cooling Tower with Multi Path

Authors: Gyu-Jin Shim, Seung-Moon Baek, Choon-Geun Moon, Ho-Saeng Lee, Jung-In Yoon

Abstract:

The experimental thermal performance of two heat exchangers in closed-wet cooling tower (CWCT) was investigated in this study. The test sections are heat exchangers which have multi path that is used as the entrance of cooling water and are consisting of bare-type copper tubes between 15.88mm and 19.05mm. The process fluids are the cooling water that flows from top part of heat exchanger to bottom side in the inner side of tube, and spray water that flows gravitational direction in the outer side of it. Air contacts its outer side of that as it counterflows. Heat and mass transfer coefficients and cooling capacity were calculated with variations of process fluids, multi path and different diameter tubes to figure out the performance of characteristics of CWCT. The main results were summarized as follows: The results show this experiment is reliable with values of heat and mass transfer coefficients comparing to values of correlations. Heat and mass transfer coefficients and cooling capacity of two paths are higher than these with one path using 15.88 and 19.05mm tubes. Cooling capacity per unit volume with 15.88mm tube using one and two paths are higher than 19.05mm tube due to increase of surface area per unit volume.

Keywords: Closed–Wet Cooling Tower, Cooling Capacity, Heatand Mass Transfer Coefficients.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1078783

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[1] Walker WH, Lewis WK, McAdams WH, Gilliland ER. 1923. Principles of chemical engineering. 3rd. ed. McGraw-Hill Inc.
[2] Parker, R.O., and R. E. Treybal. 1961. The heat, mass transfer Characteristics of Evaporative coolers. Chemical Engineering Progress Symposium Series. pp57-32. pp138-149.
[3] T. Mizushina, R ito, H. Miyashita, 1968. Characteristics and methods of thermal design of evaporative cooler. International Chemical Engineering. Vol 8. No 3. pp532-538.
[4] Nitsu, Y., K. Naito, and T. Anzai. 1969. Studies of the Characteristics and Design Procedure of Evaporative Coolers, Journal of the society of Heating, Air-Conditioning. Sanitary Engineers of Japan. Vol. 41. No 12. and Vol 43. No 7
[5] Jorge Facao and Armando Oliveira. 2004. Heat and mass transfer correlations for the design of small indirect contact cooling towers. Applied Thermal Engineering. Vol 24. issues 14-15. pp1969-1978.
[6] M. M. A. Sarker, E. Kim, C. G. Moon, J.I.Yoon. 2008. Performance characteristics of the hybrid closed circuit cooling tower. Energy and Building. Vol 40. No 8. pp1529-1535.