Utilization and performance evaluation of a surplus air heat pump system for greenhouse cooling and heating

Thermal performance of single span greenhouses with removable back walls

“…However, because solar greenhouses are relatively enclosed structures, the high temperatures resulted from poor ventilation make it difficult for crop production to continue during summer. Over the past decades, many relevant studies and experiments of greenhouse cooling technologies have been conducted throughout the world (Kumar, Tiwari, & Jha, 2009;Meng & Liu, 2012;Teitel & Wenger, 2014;Yang & Rhee, 2013). However, most of them have focused on the cooling of single and multi-span greenhouses.…”

Experimental performance of evaporative cooling pad systems in greenhouses in humid subtropical climates

“…Over the past decades, many relevant studies and experiments of greenhouse cooling technologies have been conducted throughout the world [2][3][4][5][6]. The method of computational fluid dynamics (CFD) [7,8] and TRNSYS [9] are applied to study the energy http://dx.doi.org/10.1016/j.apenergy.2014.…”

Estimation of Thermal Performance and Heat Loss in Plastic Greenhouses with and without Thermal Curtains

“…Greenhouses have an important role in supporting stable vegetable production and supply in Korea [1]. However, one of the major limitations of greenhouses is their energy cost, because a suitable microclimate for vegetable production must be maintained regardless of severe external weather conditions, especially in winter [2][3][4]. In Korea, fossil fuels for heating greenhouses account for 30-40% of the total operation costs of protected horticultural structures, such as plastic greenhouses [5,6].…”