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Experimental determination of the overall heat loss coefficient for energy requirement of greenhouse heating
Author(s) -
Ozturk H. Huseyin
Publication year - 2005
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.1085
Subject(s) - greenhouse , thermal , materials science , nuclear engineering , thermodynamics , coefficient of performance , polyethylene , environmental science , heat transfer coefficient , mechanics , composite material , engineering , heat transfer , heat pump , physics , heat exchanger , horticulture , biology
This paper presents an experimental determination of energy requirement for greenhouse heating. The overall heat loss coefficient, heat input, the control factor for air‐tightness, the rate of heat loss and the thermal screen effectiveness were calculated. The relationships between the overall heat loss coefficient and the wind speed, and the outside temperature were modelled, including the measured and calculated values. It was found that the thermal screen effectiveness was 16 and 19.8% for the polyethylene (PE) and polyester screens, respectively. Copyright © 2005 John Wiley & Sons, Ltd.