폐쇄형 묘생산 시스템의 에너지 수지 분석

Analysis of Energy Balance in Closed Transplants Production System

  • 김진국 (전북대학교 대학원 농업기계공학과) ;
  • 김용현 (전북대학교 농업생명과학대학 생물자원시스템공학부(농업과학기술연구소)) ;
  • 이명규 (전북대학교 대학원 농업기계공학과) ;
  • 최유화 (전북대학교 대학원 농업기계공학과)
  • Kim, J.K. (Dept, of Agricultural Machinery Eng., Graduate School, Cheonbuk National Univ.) ;
  • Kim, Y.H. (Division of Bioresouce Systems Eng., Chonbuk National Univ.) ;
  • Lee, M.G. (Dept, of Agricultural Machinery Eng., Graduate School, Cheonbuk National Univ.) ;
  • Choe, Y.H. (Dept, of Agricultural Machinery Eng., Graduate School, Cheonbuk National Univ.)
  • 발행 : 2003.09.01

초록

본 연구는 감자 플러그묘를 생산하기 위하여 시작품으로 제작된 폐쇄형 묘생산 시스템내의 전기에너지 소모를 분석하고, 에너지 수지를 구명하고자 수행되었다. 기온 20$^{\circ}C$, 상대습도 90%, 광주기 16/8 h, PPF 50 ${\mu}$mol${\cdot}m^{-2}{\cdot}s^{-l}$의 조건 하에서 5일 동안 발근과정을 거친 감자 경삽묘는 상대습도와 PPF를 각각 70%, 200 ${\mu}$mol${\cdot}m^{-2}{\cdot}s^{-l}$로 조절한 가운데 15일간 육묘되었다. 폐쇄형 묘생산 시스템내의 전기에너지 소비는 인공광원 46%, 컴프레서 35%, 가열기 16%, 송풍기 2%, 가습기 1% 로 나타났다. 전기에너지 이용효율과 단피복사 에너지 이용효율은 각각 0.005과 0.054 로 나타났다. 향후 폐쇄형 시스템에서의 전기에너지 소모량을 절감시키면서 에너지 이용효율을 증대시키는 빙안이 모색된다면 감자 플러그묘 생산을 위한 폐쇄형 시스템의 실용성은 더욱 높아질 것이다.

This study was conducted to analyze the energy balance in closed transplants production system (CTPS) for the production of high quality transplants. Potato (Solanum tuberosum L. cv. Dejima) plug seedlings were grown for 15 days at air temperature of 20$^{\circ}C$, relative humidity of 70%, photoperiod of 16/8 h, and photosynthetic photon flux (PPF) of 200 ${\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ following 5 days of tooting in CTPS. Electric energy consumption was 46% for lighting, 35% for cooling, 16% for heating, 2% for air circulation, and 1% for humidifying. The electric energy utilization efficiency and the short-wave energy utilization efficiency were 0.5% and 5.4%, respectively. These results suggest that CTPS has the feasibility for the commercial production of potato plug seedlings if the electric energy consumption in CTPS is reduced and the electric energy utilization efficiency is increased.

키워드

참고문헌

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