CFD Prediction of Forced Draft Counter-Flow Cooling Tower Performance

Abstract

Numerical and experimental studies were conducted for open type forced draft water cooling tower. The numerical part includes a three dimensional computational solution of air and water simultaneous equations which represents the fluid flow, heat transfer and mass transfer. Finite volume method with staggered grid and k-ε turbulent model was used. Experimentally, mechanical forced draft counter-flow cooling tower was used to validate the numerical results. The agreement seems acceptable between the numerical and experimental results. ‫ﺘﻨﺒﺄ‬ CFD ‫ﻨ‬ ‫ﻤﻥ‬ ‫ﺍﻟﺘﺒﺭﻴﺩ‬ ‫ﺒﺭﺝ‬ ‫ﻻﺩﺍﺀ‬ ‫ﺍﻟﻤﻌﺎﻜﺱ‬ ‫ﺍﻟﻘﺴﺭﻱ‬ ‫ﺍﻟﺠﺭﻴﺎﻥ‬ ‫ﻭﻉ‬ ‫ﺍﻟﺨﻼﺼﺔ‬ ‫ﺍﻟﻘﺴـﺭﻱ‬ ‫ﺍﻟﺠﺭﻴـﺎﻥ‬ ‫ﺫﻭ‬ ‫ﺍﻟﻤﻔﻌﻭﺡ‬ ‫ﺍﻟﻨﻭﻉ‬ ‫ﻤﻥ‬ ‫ﻤﺎﺌﻲ‬ ‫ﺘﺒﺭﻴﺩ‬ ‫ﻟﺒﺭﺝ‬ ‫ﻭﻋﻤﻠﻴﺔ‬ ‫ﻋﺩﺩﻴﺔ‬ ‫ﺩﺭﺍﺴﺔ‬ ‫ﺍﺠﺭﻴﺕ‬. ‫ﺠﺭﻴـﺎﻥ‬ ‫ﺘﺠﻌـل‬ ‫ﻭﺍﻟﺘﻲ‬ ‫ﺁﻨﻴﺔ‬ ‫ﺒﺼﻭﺭﺓ‬ ‫ﻭﺍﻟﻤﺎﺀ‬ ‫ﻟﻠﻬﻭﺍﺀ‬ ‫ﺍﻟﺒﻌﺩ‬ ‫ﺍﻟﺜﻼﺜﻴﺔ‬ ‫ﺍﻟﺤﺴﺎﺒﺎﺕ‬ ‫ﺍﻟﻌﺩﺩﻴﺔ‬ ‫ﺍﻟﺩﺭﺍﺴﺔ‬ ‫ﺸﻤﻠﺕ‬ ‫ﻭﺍﻟ‬ ‫ﺍﻟﺤﺭﺍﺭﺓ‬ ‫ﻭﺍﻨﺘﻘﺎل‬ ‫ﺍﻟﻤﺎﺌﻊ‬ ‫ﻜﻌﻠﺔ‬. ‫ﺍ‬ ‫ﺍ‬ ‫ﺍﻟﺤﺠﻭﻡ‬ ‫ﻁﺭﻴﻘﺔ‬ ‫ﺴﺘﻌﻠﻤﺕ‬ ‫ﻟﻤ‬ ‫ﻭﻤﻭﺩﻴل‬ ‫ﻤﺨﺎﻟﻔﺔ‬ ‫ﺸﺒﻜﺔ‬ ‫ﻨﻘﺎﻁ‬ ‫ﻤﻊ‬ ‫ﺤﺩﺩﺓ‬ K-2) (‫ﺍﻻﻀﻁﺭﺍﺒﻲ‬-‫ﺍﻟﻤﻔﻌﻭﺡ‬ ‫ﺍﻟﻨﻭﻉ‬ ‫ﻤﻥ‬ ‫ﻤﺎﺌﻲ‬ ‫ﺘﺒﺭﻴﺩ‬ ‫ﺒﺭﺝ‬ ‫ﺍﺴﺘﻌﻤل‬ ‫ﻋﻤﻠﻴﺎ‬ ‫ﻟﺘﻘﻴﻴﻡ‬ ‫ﺍﻟﻘﺴﺭﻱ‬ ‫ﺍﻟﺠﺭﻴﺎﻥ‬ ‫ﺫﻭ‬ ‫ﺍﻟﻌﺩﺩﻴﺔ‬ ‫ﺍﻟﻨﺘﺎﺌﺞ‬ ‫ﻨﻔﺎﺫﻴﺔ‬. ‫ﻤﻘﺒﻭﻻ‬ ‫ﻴﺒﺩﻭ‬ ‫ﻭﺍﻟﻌﻤﻠﻴﺔ‬ ‫ﺍﻟﻌﺩﺩﻴﺔ‬ ‫ﺍﻟﻨﺘﺎﺌﺞ‬ ‫ﺒﻴﻥ‬ ‫ﺍﻟﺘﻭﺍﻓﻕ‬ .