 Utilization and performance evaluation of a surplus air heat pump system for greenhouse cooling and heatingSeung-Hwan Yang and Joong Yong Rhee Applied Energy, 2013, vol. 105, issue C, 244-251 Abstract: Energy conserving is an important issue in greenhouse farming. Because greenhouse operations consume large amount of fossil fuel energy, energy conservation is necessary for securing famers’ income and alleviating global warming. Surplus air thermal energy (SATE) in greenhouses exists even in the cold season, but it has not been utilized for greenhouse operations. In this research, a greenhouse system to capture and use SATE for cooling and heating in greenhouse farming was operated and its performance was evaluated. This system consists of a heat pump system including heat storage tanks, fan-coil-units in the greenhouse and an electric heater for supplemental heating. This system was located in Hwasung, Korea and operated in the cold season. The amount of SATE was measured to be between 258.3 and 6259.0MJ/month for a glass house with a 100m2 floor area. The energy conservations were determined to be maximum of daily 76.3% and monthly 25.7%. Keywords: Surplus energy; Solar thermal energy; Greenhouse environmental control; Air source heat pump; Energy conservation (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:105:y:2013:i:c:p:244-251 Ordering information: This journal article can be ordered from DOI: 10.1016/j.apenergy.2012.12.038 Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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