イワサキ　ヤスナガ   IWASAKI YASUNAGA   岩崎　泰永    所属   明治大学  農学部    職種   専任教授
言語種別	日本語
発行・発表の年月	2015/10
形態種別	学術雑誌
標題	A cooling and CO<inf>2</inf> enrichment system for greenhouse production using CO<inf>2</inf> clathrate hydrate
執筆形態	その他
掲載誌名	Engineering in Agriculture, Environment and Food
巻・号・頁	8(4),307-312頁
著者・共著者	Hiroki Umeda, Dong Hyuk Ahn, Yasunaga Iwasaki, Seiji Matsuo, Satoshi Takeya
概要	Even though CO enrichment is known to effectively promote photosynthesis and is widely used around the world, the use of this technique is uncommon in Japan. The aim of this study was to develop a new air-conditioning system for greenhouses by using a high-efficiency, low-cost cooling technique that allows CO enrichment during the high-temperature phase. We developed an air-conditioning system using CO clathrate hydrate and evaluated its performance in the laboratory. The capacity of the hydrate was sufficient to stably increase the CO concentration, and photosynthesis was promoted in experimental tomato plants for a given length of time. The amount of cold energy supply from the hydrate was not sufficient to completely replace electrical cooling for the entire experimental period, but this deficiency most likely can be overcome by combining this type of cooling and CO enrichment system with other innovative methods of cooling. 2 2 2 2 2
DOI	10.1016/j.eaef.2015.04.010