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http://dx.doi.org/10.12791/KSBEC.2015.24.3.217

Effect of Growing Part Following Local Heating for Cherry Tomato on Temperature Distribution of Crop and Fuel Consumption  

Kwon, Jin Kyung (Protected Horticulture Research Institute, NIHHS, RDA)
Kang, Geum Chun (Energy & Environmental Engineering Division, NAAS, RDA)
Moon, Jong Pil (Energy & Environmental Engineering Division, NAAS, RDA)
Lee, Tae Seok (Energy & Environmental Engineering Division, NAAS, RDA)
Lee, Su Jang (Energy & Environmental Engineering Division, NAAS, RDA)
Publication Information
Journal of Bio-Environment Control / v.24, no.3, 2015 , pp. 217-225 More about this Journal
Abstract
Local heating system providing hot air locally to growing parts including shoot apex and flower cluster which were temperature-sensitive organs of cherry tomato was developed to reduce energy consumption for greenhouse heating without decline of crop growth. Growing part following local heating system was composed of double duct distributer which connected inner and outer ducts with hot air heater and winder which moved ducts up and down following growing parts with plant growth. Growing part local heating system was compared with conventional bottom duct heating system with respect to distributions of air and leaf surface temperatures according to height, growth characteristics and energy consumption. By growing part local heating, air temperature around growing part was maintained $0.9{\sim}2.0^{\circ}C$ higher than that of lower part of crop and leaf surface temperature was also stratified according to height. Investigations on crop growth characteristics and crop yield showed no statistically significant difference except for plant height between bottom duct heating and growing part local heating. As a result, the growing part local heating system consumed 23.7% less heating energy than the bottom duct heating system without decrease of crop yield.
Keywords
energy saving; flower cluster; greenhouse; plant growth; shoot apex; temperature-sensitive organ;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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