閉鎖型苗生産システムにおける消費電力量および電力コストの解析

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We measured electric energy consumption and estimated electric energy cost of a closed-type transplant production system to investigate how much we can reduce them toward a practical use of the closed-type transplant production system. Sweetpotato (Ipomoea batatas (L.) Lam. cv. Beniazuma) transplants were grown for 15 days under 31/42/68 W m^<-2> (1-5/6-10/11-15 days after planting, respectively) photosynthetic active radiation with 16h d^<-1> photoperiod, 28℃ air temperature, 75% relative humidity and 920 μmol mol^<-1> CO_2 concentration in the closed-type transplant production system. The amounts of electric energy consumption of lamps, air conditioners, fans and humidifiers during 15 days were 376, 118, 55 and 19 MJ m^<-2>, respectively. The amount of increased chemical energy of transplants was 3MJ m^<-2>. The electric energy cost per tray of the closed-type transplant production system was estimated as 288 Yen. We estimated reductions of 500f electric energy consumption of lamps, 2027777666460f air conditioners, 4026662615000f fans, 3026662621600f humidifiers and 71024006050f electric energy cost without reducing the amount of increased chemical energy of transplants during 15 days by improving the efficiency of lighting, air cooling and circulating systems. From the above estimation, the amount of electric energy consumption and the electric energy cost per tray of the improved closed-type transplant production system will be 288MJ m^<-2> (50% reduction) and 132 Yen (54% reduction).
2001-09-01

閉鎖型苗生産システムにおける消費電力量および電力コストの解析

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