Evaluation of a heat pump system for greenhouse heating
Aye, Lu, Fuller, R. J. and Canal, A. 2010, Evaluation of a heat pump system for greenhouse heating, International journal of thermal sciences, vol. 49, pp. 202-208, doi: 10.1016/j.ijthermalsci.2009.07.002.
Greenhouse heating costs for some commercial growers in southern Australia are now a significant production cost. This is particularly the case for those operators who installed heating systems using liquefied petroleum gas (LPG) when this fuel was relatively inexpensive. Heat pump systems used in various configurations have been suggested as an option for reducing energy use and costs for greenhouse heating, particularly if off-peak electricity is used. This paper investigates the financial and environmental viability of an air-to-water heat pump system for a 4000 m2 greenhouse, located 120 km north of Melbourne, Victoria. The simulation software, TRNSYS, was used to predict the performance of the system. The heat pump system was found to have a simple payback period of approximately six years and reduce LPG consumption by 16%. Greenhouse gas emissions were 3% higher using the heat pump system, compared to the existing LPG boiler.
Reproduced with the specific permission of the copyright owner.
Field of Research
090703 Environmental Technologies
Socio Economic Objective
850703 Industrial Energy Conservation and Efficiency
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