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Volume & Issue no: Volume 4, Issue 1, January 2015

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Title:
Experimental Study to Enhanced Heat Transfer on a Heat Exchanger Al2O3 water-nanofluid Using an Air Flow with Water Droplets
Author Name:
Yasameen H. Abed, Abdulhassan A.Karamallah, Adel Mahmoud Saleh
Abstract:
ABSTRACT An experimental study has been carried out to improve the heat transfer in heat exchanger(H.E) cooled by water sprayed air and as additional to increase the heat transfer for the H.E added Al2O3 nanofluid to the water which flowed in heat exchanger using two different concentrations( 0.5 & 2%). A pilot has been built allowing injecting droplets in air by a nozzle in various conditions while controlling air flow rates, temperature and humidity. One can clearly observe that fluid outlet temperature has decreased with the augmentation of nanoparticle volume concentration and with used spray system. The emphasis has been put on the spray evaporation resulting in a temperature decrease and humidity increase in the air flow. Upon passing the air through the condenser, the temperature of the air increases and humidity decreases. When applying mist, temperature of the air decreased from about 3 oC and the relative humidity of 38% then passed to 50%. An actual increase the heat transfer for the heat exchanger cooled by air up to 1.577 times the heat transfer for the heat exchanger cooled by spayed air, and up to 1.763 for the heat exchanger using water –nanofluid flow. Keywords:- enhanced, heat transfer, condenser, water spray air, nanofluid
Cite this article:
Yasameen H. Abed, Abdulhassan A.Karamallah, Adel Mahmoud Saleh , " Experimental Study to Enhanced Heat Transfer on a Heat Exchanger Al2O3 water-nanofluid Using an Air Flow with Water Droplets" , International Journal of Application or Innovation in Engineering & Management (IJAIEM) , Volume 4, Issue 1, January 2015 , pp. 033-045 , ISSN 2319 - 4847.
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