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Chen B., Clark D., Maloney J., Ning Mei W., and Kasher J. Measurement of night sky emissivity in determining radiant cooling from cool storage roofs and roof ponds. Proceedings of the National Passive Solar Conference, vol. 20, pp. 310-313. AMERICAN SOLAR ENERGY SOCIETY INC, 1995.

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Article

Simplified Method for Night Sky Radiation Analysis in a Cool-Pool System

1Department of Renewable Energies, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran


Sustainable Energy. 2014, Vol. 2 No. 1, 29-34
DOI: 10.12691/rse-2-1-6
Copyright © 2014 Science and Education Publishing

Cite this paper:
Alibakhsh Kasaeian, Mohammad Sameti, Amin Toghi Eshghi. Simplified Method for Night Sky Radiation Analysis in a Cool-Pool System. Sustainable Energy. 2014; 2(1):29-34. doi: 10.12691/rse-2-1-6.

Correspondence to: Alibakhsh  Kasaeian, Department of Renewable Energies, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Email: akasa@ut.ac.ir

Abstract

The conventional mechanical building cooling systems are energy demanding equipment. Needing for low-energy consumption systems is a motivation for utilizing ambient energy resources such as ground, ambient air, sky and water as alternative resources. Night sky can be a good candidate as a heat sink to be used in cooling systems. The present study proposes and presents a simplified method for computing net outgoing energy exchanged between night sky and a cool-pool in a building cooling system. Considering a real night condition with a 3 m × 4 m pool and overall energy conversion efficiency of 75%, we obtained that the aforementioned system can replace a 4000 watts swamp cooler works for 6 hours a day.

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