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A Time Dependent Analysis of Greenhouse Thermal Environment

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Transactions of the ASAE. 24 (2): 0442-0449. (doi: 10.13031/2013.34271) @1981
Authors:   Pitam Chandra, L. D. Albright, N. R. Scott

ABSTRACT RISING fuel prices are having a significant effect on further development of the greenhouse industry. This has directed research efforts along two paths: (a) improving the greenhouse structure to reduce energy losses, while maintaining a desirable growth environ-ment; and (b) developing alternate energy sources such as solar, wind, waste heat from power plants, and geo-thermal energy to meet greenhouse heating demand. Although a number of greenhouse thermal environ-ment models (analytical and numerical) are available at present, each model is restrictive in its applicability. A more general time-dependent analysis of greenhouse thermal environment is desirable to detect and control thermal stress on plants, to design so as to reduce heat-ing and cooling requirements, and to consider intermit-tent sources of heating and cooling such as solar and wind.

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