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Energy conservation in large air‐conditioned buildings: Use of evaporative roof cooling in hot and dry climates
Author(s) -
Sodha M. S.,
Sawhney R. L.,
Deshmukh M. K.
Publication year - 1989
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440130207
Subject(s) - evaporative cooler , roof , energy conservation , environmental science , building envelope , ventilation (architecture) , passive cooling , solar gain , engineering , environmental engineering , meteorology , thermal , civil engineering , geography , mechanical engineering , electrical engineering
Energy conservation potential of the evaporative roof cooling technique for a cinema house in a composite climate (characterized by Delhi) has been evaluated. Thermal loads due to heat conduction through the building envelope, the required ventilation and the occupants have been taken into account. Life‐cycle‐cost analysis has been employed to evaluate the cost effectiveness of this energy conservation technique. It is seen that evaporative cooling on the roof leads to a net saving of 14% in the initial investment and 17% in the annual cost.