Performance Comparison for NDWCT Using Trickle Fill at Different Weather Conditions
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : Qasim Saleh Mahdi , Muwafaq Rahi Al- Hachami
|DOI : 10.14445/22315381/IJETT-V19P223|
Qasim Saleh Mahdi , Muwafaq Rahi Al- Hachami "Performance Comparison for NDWCT Using Trickle Fill at Different Weather Conditions", International Journal of Engineering Trends and Technology (IJETT), V19(3), 134-139 Jan 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
A prototype design has been built to simulate natural draft wet cooling tower based on geometrical, dynamic and thermodynamic similarity. Experimental tests were done in summer (hot and dry) and at winter (cold and wet) weather according to Iraqi weather using (10) cm trickle fill. The mass flow rate of water has changed from (0.8 to 2.4) gpm, and cross wind fixed at zero (m/s). The obtained results clarify that tower range, cooling capacity, and air temperature change, are higher at winter than them at summer where relative humidity change, enthalpy change, and show higher values at summer than them at winter. It is found that water consumption in winter is more than it in summer in spite of the more humidity in outside weather at winter.
 Kloppers J. C.and Kroger D. G., Loss Coefficient Correlation for Wet-Cooling Tower Fills, Applied Thermal Engineering, vol.23, pp.2201–221, 2003.
 J.C. Kloppers, D.G. Kröger, The Lewis factor and its influence on the performance prediction of wet-cooling towers, International Journal of Thermal Sciences 44 (2005) 879–884.
 Kloppers J. C. and Kroger D. G., “Influence of Temperature Inversions on Wet-Cooling Tower Performance”, Applied Thermal Engineering, vol.25, pp.1325–1336, 2005.
 Bilal A. Qureshi, Syed M. Zubair, A complete model of wet cooling towers with fouling in fills, Applied Thermal Engineering 26 (2006) 1982–1989
 Zhai Z. and Fub S., Improving Cooling Efficiency of Dry-Cooling Towers Under Cross-Wind Conditions by Using Wind-Break Methods , Applied Thermal Engineering, vol.26, pp.1008–1017, 2006.
 Gao M., Sun F., Wang K., Shi Y. and ZhaoY., Experimental Research of Heat Transfer Performance on Natural Draft Counter Flow Wet Cooling Tower Under Cross-Wind Conditions, International Journal of Thermal Sciences, vol.47, pp. 935–941, 2008.
 Lemouari M., Boumaza M., and Kaabi A., “Experimental Analysis of Heat and Mass Transfer Phenomena in a Direct Contact Evaporative Cooling Tower”, Journal of Energy Conversion and Management, vol.50, pp.1610–1617, 2009.
 Ghassem Heidarinejad, Maryam Karami, Shahram Delfani, “Numerical simulation of counter-flow wet-cooling towers”, International Journal of refrigeration, vol.32, pp. 996 – 1002, 2009
 Lemouari M. and Boumaza M., Experimental Investigation of the Performance Characteristics of a Counter Flow Wet Cooling Tower, International Journal of Thermal Sciences, vol.49, pp.2049-2056, 2010.
 Rafat Al-Waked, Crosswinds Effect on the Performance of Natural Draft Wet Cooling Towers, International Journal of Thermal Sciences, vol.49, pp.218–224, 2010.
 Kai Wang, Feng-zhong Sun, Yuan-bin Zhao, Ming Gao, Lei Ruan, Experimental research of the guiding channels effect on the thermal performance of wet cooling towers subjected to crosswinds – Air guiding effect on cooling tower, Applied Thermal Engineering 30 (2010) 533–538.
 Navid Bozorgan and Nariman Bozorgan “Heat and mass transfer evaluation and exergy analysis in the counter flow wet cooling tower of Khuzestan steel company (KSC)”, International Journal of Advanced Design and Manufacturing Technology, Vol. 5/ No. 3, 2012.
 Xiaoni Qi, Yongqi Liu, and Zhenyan Liu, “Exergy Based Performance Analysis of a Shower Cooling Tower”. Journal of Mechanical Engineering vol.59, pp.251-259, 2013.
 Williamson, Behnia and S. W. Armfield, Thermal optimization of a natural draft wet cooling tower, International Journal of Energy Research, 2008; 32:1349–1361.
 Williamson N., Behnia M. and Armfield S., Comparison of a 2D Axisymmetric CFD Model of a Natural Draft Wet Cooling Tower and a 1D Model, International Journal of Heat and Mass Transfer, vol.51, pp.2227–2236, 2008.
 Alok singh, S P S Rajput. “Application of CFD in Natural Draft Wet Cooling Tower Flow”, International Journal of Engineering Research and Applications, ISSN: 2248-9622, Vol. 2, Issue 1, Jan-Feb 2012, pp.1050-1056.
 Z.-G. Zhao, Cooling Tower, China Water-Power Press, Beijing, 2001.
 Gould Ph. L. and Wilfried B. Krätzig, “Cooling Tower Structures, Structural Engineering Handbook”, CRC Press LLC, 1999.
 American Society of Heating, Refrigerating, and Air-Conditioning Engineers, ASHRAE System and Equipment Handbook (SI), ch. 36, 2000.
Cooling Tower, Trickle Fill, Hot Weather, Natural Draft, Iraqi Weather.