Energy saving potential of a novel dew point evaporative air conditioning system for Indian buildings

By T Ravi Kiran, S. P. S. Rajput

Abstract

A novel dew point evaporative cooler (DPEC) can sensibly cool the incoming air close to its dew point temperature. This paper presents potential energy savings of a novel DPEC for various cities during the summer season (April-June) for Indian buildings with the help of meteorological data. Energy savings are calculated by comparing the power required to run a DPEC with that of a conventional compression based refrigerant air conditioning system to produce the same cooling effect. The analysis is done for an office space of 200m2 with an average cooling load of 90 W/m2 assuming that the system is operated during 8 working hours from 9.00a.m. to 5.00p.m. It was found that energy savings is higher for the cities where climate is relatively drier during the summer season.

 

Key Words : dew point evaporative cooler,

 

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