Mathematical modeling of passive dry cooling for power plants in arid land

Radiative cooling from surfaces gives a promising alternative to conventional cooling techniques. A new means for cooling power plants through passive dry cooling is explored utilizing convection and infrared radiation from a covered cooling pond, such that evaporation is suppressed. A mathematical...

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Bibliographic Details
Published in:Solar energy 1992, Vol.48 (5), p.279-286
Main Authors: Olwi, I.A., Sabbagh, J.A., Khalifa, A.M.A.
Format: Article
Language:English
Subjects:
420400 - Engineering- Heat Transfer & Fluid Flow
990200 - Mathematics & Computers
Applied sciences
Atmosphere
Climate
CONVECTION
COOLING
COOLING PONDS
cooling systems
ELECTROMAGNETIC RADIATION
Energy
ENERGY TRANSFER
Energy. Thermal use of fuels
ENGINEERING
EVAPORATION
Exact sciences and technology
GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
HEAT TRANSFER
INFRARED RADIATION
Installations for energy generation and conversion: thermal and electrical energy
MASS TRANSFER
MATHEMATICAL MODELS
NATURAL CONVECTION
PHASE TRANSFORMATIONS
PONDS
POWER PLANTS
RADIANT HEAT TRANSFER
RADIATIONS
RADIATIVE COOLING
solar energy
SURFACE WATERS
Temperature
TEMPERATURE DISTRIBUTION
WATER RESERVOIRS
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Summary:Radiative cooling from surfaces gives a promising alternative to conventional cooling techniques. A new means for cooling power plants through passive dry cooling is explored utilizing convection and infrared radiation from a covered cooling pond, such that evaporation is suppressed. A mathematical model is established to predict the temperature distribution along the proposed prototype pond. A quantitative study of the heat rejection process is presented for 24-hour operation of the cooling system. The numerical study shows that a total heat rejection of 150 W/m 2, on the average, could be obtained under normal circumstances.
ISSN:0038-092X
1471-1257
DOI:10.1016/0038-092X(92)90055-F