Parametric Study of Factors Affecting Design and Thermodynamic Characteristics of Induced Draft Cooling Towers
Keywords:
Induced draft cooling tower, dry bulb and wet bulb temperature, parametric studies, exergy analysisAbstract
Induced draft cooling towers are an important direct contact heat transfer utility system at every process and power plant and they represent an important capital investment for any facility. Therefore, their design has to be done carefully using accurate design data. This work studies the effect of the most important design parameters on the final design and thermodynamic performance of the cooling tower (i.e. the air flow rate required, the tower diameter and the packed height) for meeting an assumed constant heat load throughout the year. Use of actual meteorological data for a specific location and vendor design data reported in open literature is made for these calculations. The code developed here can be used for optimization of cooling tower design and can be extended to design of cooling water networks as well.
References
2005 ASHRAE Handbook— Fundamentals (SI), Design conditions for Bombay/Santacruz, India, available at http://cms.ashrae.biz/weatherdata/ST ATIONS/430030_s.pdf (last accessed on 1.5.2020)
Dutta BK. Principles of Mass Transfer and Separation Processes, Prentice Hall India Learning Private Limited (2006).
Walas SM. Chemical Process Equipment Selection and Design, 2nd ed., Elsevier (2004).
Foust AS. Principles of Unit Operations, 2nd ed., John Wiley and Sons (1980).
Kern DQ. Process Heat Transfer, 1st ed., McGraw Hill Education (India) Private Ltd. (2015).
F. Gharagheizi, R. Hayati, and S. Fatemi, Experimental study on the performance of mechanical cooling tower with two types of film packing, Energy Conversion & Management, 2007, Vol. 48, P. 277–280.
S.V. Bedekar, P. Nithiarasu, and K.N. Seetharamu, Experimental investigation of the performance of a counter flow packed-bed mechanical cooling tower, Energy, 1998, Vol. 23, No. 11, P. 943–947.
H.R. Goshayshi, J.F. Missenden, and R. Tozer, Cooling towers — an energy conservation resource, Applied Thermal Engng, 1999, Vol. 19, P. 1223–1235.
H.R. Goshayshi and J.F. Missenden, The investigation of cooling tower packing in various arrangements, Appl. Thermal Engng, 2000, Vol. 21, P. 69–80.
M. Lemouari, M. Boumaza, and A. Kaabi, Experimental analysis of heat and mass transfer phenomena in a direct contact evaporative cooling tower, Energy Conversion & Management, 2009, Vol. 50, P. 1610– 16177. [11] M. Lemouari, M. Boumaza, and I.M. Mujtaba, Thermal performances investigation of a wet cooling tower, Applied Thermal Engng, 2007, Vol. 27, P. 902–909.
M. Gao, C. Guo, C. Ma, Y. Shi, F. Sun. Thermal Performance for Wet Cooling Tower with Different Layout Patterns of Fillings under Typical Crosswind Conditions, Energies 2017, 10(1), 65.
