@article{oai:repository.naro.go.jp:00001926,
 author = {岩崎, 泰永 and IWASAKI, Yasunaga and 大石, 真実 and SUZUKI, Mami and 鈴木, 真実 and 梅田, 大樹 and UMEDA, Hiroki and 松尾, 誠治 and MATSUO, Seiji and Ahn, Dong-Hyuk and 安, 東赫 and 高市, 益行 and TAKAICHI, Masuyuki},
 journal = {野菜茶業研究所研究報告, Bulletin of the National Institute of Vegetable and Tea Science},
 month = {Mar},
 note = {We investigated the operating characteristics of three heat pumps for greenhouse cooling to reduce ventilation. The heat pumps were installed in three adjacent tunnel greenhouses (4.5m wide, 7.0m long, 2.7m high) in Taketoyo-cho, Aichi prefecture. We tested an air-to-air heat pump designed for office or factory use (HPair, 3.75kW rated electric power consumption), another designed for home use (HPhome, 2.90kW), and a water-to-air heat pump combined with a heat storage tank (HPwater, 3.0 kW) The average (24h) outside temperature during the experimental period (14 to 18 April 2014) was 20℃, and the highest was 28℃. The average hourly solar radiation (06 : 00 to 18:00) was 0.36 kW・m^–2, and the maximum was 0.7 kW・m^–2. HPhome had the highest coefficient of performance (COP), with an average hourly COP of 6.1 and a maximum of 8.5. HPair had an average hourly COP of 2.5 and a maximum of 5.2. The COP of HPwater was almost the same as that of HPair. The energy-use efficiency of HPhome was higher than that of HPair in cooling. To improve the COP of HPwater, we need to optimize the balance between the size of the water tank and the set water temperature in the tank.},
 pages = {65--74},
 title = {施設園芸用ハウスの換気抑制を目的とした冷房における空気熱源ヒートポンプ, 家庭用ヒートポンプおよび蓄熱槽利用型ヒートポンプの運転特性比較},
 volume = {14},
 year = {2015},
 yomi = {イワサキ, ヤスナガ and スズキ, マミ and ウメダ, ヒロキ and マツオ, セイジ and アン, ドンヒョク and タカイチ, マスユキ}
}