Experimental study on the effect of roof spray cooling on unconditioned and conditioned buildings

✍ Scribed by S.P. Jain; K.R. Rao

• Publisher: Elsevier Science
• Year: 1974
• Weight: 489 KB
• Volume: 9
• Category: Article
• ISSN: 0007-3628
• DOI: 10.1016/0007-3628(74)90035-8

✦ Synopsis

This paper present,+ the result of experimental investigations otl the ~}[:/ect o[ roof pond, roof spray and wetted gunny bag O'sterns on the temperature and heat flow at the ceiling surface of thick R.C.C. roofs of air conditioned and unconditioned rooms exposed to a hot-dry climate. Re.+'ults show that an appreciable reduction of the order of 13,15 and 17°C. re,+pectivelv has been observed in the ceiling temperature by these three cooling .s'ystems. Peak heat flow is reduced b3' 85 per cent in the case,+ + of roof-spray and ro~?f pond svstem,~. Furthermore the heat flow get,+ + reversed i.e. it flows out of the room in [he case of wetted gunny bags. An integrated system of roof spray and air-conditioning brings about a reduction of the order of 60--65 per cent in the peak heat.flow, resulting into a saving of 40 per cent in the electrical consumption.