10.2190/L9QN-QMAK-DCR1-7KAV L9QNQMAKDCR17KAV 1 A Surface Heated Greenhouse Model for Waste Heat Utilization Assessment 275 293 20020509 20020509 20020509 20020509 L9QNQMAKDCR17KAV.pdf http://baywood.metapress.com/link.asp?target=contribution&id=L9QNQMAKDCR17KAV 4 John D. Keenan Robert N. Amundsen Department of Systems, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania School of Management, New York Institute of Technology, Old Westbury, New York This is the fifth in a series of articles on the development of a methodology for assessing waste heat utilization technologies and optimizing the mix of technologies used on a site-specific basis. As part of this effort, a surface heated greenhouse model has been developed and is described. The model uses readily obtainable data regarding plant kinetics, climate conditions, and the inlet water temperature. The outputs include the time to harvest, crop yield, outlet water temperature, and mass flow rates of heated water in and out of the greenhouse required to maintain the desired temperature. This model has been used in simulations in order to assess the economic feasibility of this method of utilizing waste heat. R. N. Amundsen, <i>Computer Simulation and Optimization for the Assessment of Waste Heat Utilization Technologies</i>, Dissertation, Energy Management and Policy, University of Pennsylvania, 607 pp., 1986. J. D. Keenan and R. N. Amundsen, Assessment of Waste Heat Utilization Technologies: Overview, <i>Journal of Environmental Systems, 19</i>:2, pp. 95-114, 1989. J. D. Keenan and R. N. Amundsen, An Evaporative Pad Greenhouse Model for Waste Heat Utilization Assessment, <i>Journal of Environmental Systems, 19</i>:3, pp. 185-209, 1990. S. L. Iverson, V. R. Puttagunta, K. D. Meek, and K. L. Chisholm, <i>The Feasibility of Agricultural Uses of Thermal Effluent from Glace Bay Heavy Water Plant</i>, Atomic Energy of Canada, Ltd., AECL Report No. 5963, Whiteshell Nuclear Establishment, Pinawa, Manitoba, April 1978. B. Yanda and R. Fisher, <i>The Food and Heat Producing Solar Greenhouse</i>, John Muir Publications, Sante Fe, New Mexico, 1980. J. N. Walker, Predicting Temperatures in Ventilated Greenhouses, <i>Transactions of the American Society of Agricultural Engineers, 8</i>:3, pp. 277-289, 1965. American Society of Heating, Refrigerating, and Air Conditioning Engineers, <i>ASHRAE Handbook-1982 Applications</i>, ASHRAE, New York, 1982. J. D. Keenan and R. N. Amundsen, An Aquaculture Model for Waste Heat Utilization Assessment, <i>Journal of Environmental Systems</i>, in preparation. P. N. Walker, Greenhouse Surface Heating with Power Plant Cooling Water, <i>Transactions of the American Society of Agricultural Engineers, 22</i>:6, pp. 1370-1374, 1979. K. Wark, <i>Thermodynamics</i>, (3rd Edition), McGraw-Hill Book Company, New York, 909 pp., 1977. D. E. Root, Jr., A Simplified Approach to Swimming Pool Heating, <i>Solar Energy, 3</i>:1, pp. 60-63, 1959. E. L. Thackston and F. L. Parker, Geographical Influence on Cooling Ponds, <i>Journal of the Water Pollution Control Federation, 44</i>:7, p. 1134, 1972.