• Title/Summary/Keyword: 연료량 측정장치

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Effect of Growing Part Following Local Heating for Cherry Tomato on Temperature Distribution of Crop and Fuel Consumption (방울토마토 생장부 추종 국소난방이 군락 온도분포 및 연료소비에 미치는 영향)

  • Kwon, Jin Kyung;Kang, Geum Chun;Moon, Jong Pil;Lee, Tae Seok;Lee, Su Jang
    • Journal of Bio-Environment Control
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    • v.24 no.3
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    • pp.217-225
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    • 2015
  • 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.