 Enhancement of evaporative cooling system in a greenhouse using geothermal energyIssam M. Ali Aljubury and Hind Dhia'a Ridha Renewable Energy, 2017, vol. 111, issue C, 321-331 Abstract: In desert climates cooling greenhouses are needed to protect crops from extremely high temperature. In Iraq, outside air temperature can reach 50 °C during the summer, which makes greenhouses unworkable in this season. So, this work was trying to overcome this situation and to examine the feasibility of greenhouse cooling using groundwater in the indirect-direct evaporative cooling (IDEC) unit. For this purpose, a two-stage evaporative cooling experimental setup consists of one indirect evaporative cooling heat exchanger and three pads as a direct evaporative cooling designed, constructed, and analyzed. A series of experimental tests were carried out in June, July, and August 2015 during the summer of Baghdad with different parameters. The results show that the use of groundwater enhanced IDEC unit efficiency up to 108% compared with a direct evaporative cooling efficiency that recorded 77.5%. Using covering layers reduced the intensity of solar entering the greenhouse from 15% for a single layer to 40% in the case of two layers with one layer of green mesh. Keywords: Evaporative cooling; Indirect-direct evaporative cooling; Geothermal energy; Greenhouse (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:renene:v:111:y:2017:i:c:p:321-331 DOI: 10.1016/j.renene.2017.03.080 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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