閉鎖型苗生産システムのエネルギおよび物質収支(第1報) : エネルギ収支   :   Energy and Mass Balance of a Closed-type Transplant Production System (Part 1)-Energy Balance- 

作成者 大山, 克己, 吉永, 慶太, 古在, 豊樹
作成者の別表記 オオヤマ, カツミ, Katsumi, Ohyama, ヨシナガ, ケイタ, Keita, Yoshinaga, Toyoki, Kozai
日本十進分類法 (NDC) 615
内容 The energy balance of a closed-type transplant production system with artificial lighting was investigated. Sweetpotato (Ipomoea batatas (L.) Lam. cv. Beniazuma) plants were grown for 15 days at photosynthetic photon flux on the tray surface of 100, 200 and 300μmol m^<-2>s^<-1> on days 0-2, 3-11 and 12-14, respectively, air temperature of 30℃, CO_2 concentration of 1000μmol mol^<-1>, relative humidity of 80/100% (photoperiod/dark period) inside the system and photoperiod of 16 h d^<-1>. The amount of electric energy consumption during the 15 days for lighting, cooling and the other equipment per planting area were 375.5, 80.8 and 41.1 MJ m^<-2>, respectively. Electric energy consumption per plant was 1.8MJ(0.5kWh), and its cost was approximately 4-5 Japanese Yen. Coefficient of performance for the cooling system was approximately 4.7, which was 2 times higher than the value described in the catalog, partly because the air temperature inside the system was higher than that of outside the system. The ratio of electric energy consumption to chemical energy assimilated by plants (energy use efficiency of the system) was 0.006. These results show that the closed-type transplant production system is feasible for the commercialization. Methods for further reduction of electric energy consumption (increasing the energy use efficiency of the system) and electricity cost are discussed.
公開者 日本植物工場学会
コンテンツの種類 雑誌掲載論文 Journal Article
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 0918-6638
NCID AN10451761
掲載誌情報 植物工場学会誌 Vol.12 no.3 page.160-167 (2000)
情報源 Journal of Society of High Technology in Agriculture (J. SHITA), SHITA journal
言語 日本語
著者版フラグ publisher

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