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Exergetic Efficiency Assessment of Key Psychrometric Processes

Author(s):

tailor vishalkumar hasmukhbhai , SVMIT,Bharuch; Dr.Ragesh.G.Kapadia, SVMIT,Bharuch

Keywords:

Exergetic Efficiency , Psychrometric Processes, humidification, dehumidification,

Abstract

The study focused on finding exergy efficiencies for basic psychometric processes, such as heating, heating with humidification, cooling with dehumidification, and Adiabatic mixing. The effect of ambient air temperature, ambient relative humidity, and change in inlet air temperature on exergy efficiency was investigated by using three different definitions given by cengel, wepfer and kangolu. Experimental and theoretical analysis is carried out for all above processes by using three different definitions. This all psychrometric process was carried out on air conditioning experimental set up. The range of parameters covered included atmosphere air temperature (T0=273 -317k) and relative humidity (RH0 = 50-90%), and mass flow rate of air (0.157kg/s). All three approaches are reasonably correct, the third efficiency is more suitable for psychometric processes. Exergy efficiency of psychrometric process is very low there for energy consumption higher in HVAC System. So this observation also implies that there is great potential for improving the performance of such system.

Other Details

Paper ID: IJSRDV2I3635
Published in: Volume : 2, Issue : 3
Publication Date: 01/06/2014
Page(s): 1645-1652

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