생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제25권2호
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  • Pages.123-132
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  • 2016
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
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건물에너지시뮬레이션을 활용한 연동형 온실 및 작물에너지모델 설계 및 이의 냉·난방부하 산정

Design of Energy Model of Greenhouse Including Plant and Estimation of Heating and Cooling Loads for a Multi-Span Plastic-Film Greenhouse by Building Energy Simulation

  • 이승노 (서울대학교 지역시스템공학전공) ;
  • 박세준 (서울대학교 지역시스템공학전공) ;
  • 이인복 (서울대학교 지역시스템공학전공) ;
  • 하태환 (서울대학교 지역시스템공학전공) ;
  • 권경석 (서울대학교 지역시스템공학전공) ;
  • 김락우 (서울대학교 지역시스템공학전공) ;
  • 여욱현 (서울대학교 지역시스템공학전공) ;
  • 이상연 (서울대학교 지역시스템공학전공)
  • Lee, Seung-No (Department of Rural Systems Engineering, Seoul National University) ;
  • Park, Se-Jun (Department of Rural Systems Engineering, Seoul National University) ;
  • Lee, In-Bok (Department of Rural Systems Engineering, Seoul National University) ;
  • Ha, Tae-Hwan (Department of Rural Systems Engineering, Seoul National University) ;
  • Kwon, Kyeong-Seok (Department of Rural Systems Engineering, Seoul National University) ;
  • Kim, Rack-Woo (Department of Rural Systems Engineering, Seoul National University) ;
  • Yeo, Uk-Hyeon (Department of Rural Systems Engineering, Seoul National University) ;
  • Lee, Sang-Yeon (Department of Rural Systems Engineering, Seoul National University)
  • 투고 : 2016.06.01
  • 심사 : 2016.06.21
  • 발행 : 2016.06.30
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초록

The importance of energy saving technology for managing greenhouse was recently highlighted. For practical use of energy in greenhouse, it is necessary to simulate energy flow precisely and estimate heating/cooling loads of greenhouse. So the main purpose of this study was to develope and to validate greenhouse energy model and to estimate annual/maximum energy loads using Building Energy Simulation (BES). Field experiments were carried out in a multi-span plastic-film greenhouse in Jeju Island ($33.2^{\circ}N$, $126.3^{\circ}E$) for 2 months. To develop energy model of the greenhouse, a set of sensors was used to measure the greenhouse microclimate such as air temperature, humidity, leaf temperature, solar radiation, carbon dioxide concentration and so on. Moreover, characteristic length of plant leaf, leaf area index and diffuse non-interceptance were utilized to calculate sensible and latent heat exchange of plant. The internal temperature of greenhouse was compared to validate the greenhouse energy model. Developed model provided a good estimation for the internal temperature throughout the experiments period (coefficients of determination > 0.85, index of agreement > 0.92). After the model validation, we used last 10 years weather data to calculate energy loads of greenhouse according to growth stage of greenhouse crop. The tendency of heating/cooling loads change was depends on external weather condition and optimal temperature for growing crops at each stage. In addition, maximum heating/cooling loads of reference greenhouse were estimated to 644,014 and $756,456kJ{\cdot}hr^{-1}$, respectively.

키워드

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