Development of New Air-Cooled Heat Pump Chiller 'Compact Cube'

DOI Web Site 参考文献2件
  • OOKOSHI Yasushi
    Mitsubishi Electric Corporation, 517-7, Hamada-go, Togitsu-cho, Nishisonogi-gun, Nagasaki, Japan
  • ITO Takuya
    Mitsubishi Electric Corporation, 517-7, Hamada-go, Togitsu-cho, Nishisonogi-gun, Nagasaki, Japan
  • YAMAGUCHI Hiroshi
    Mitsubishi Electric Corporation, 8-1-1, Tukaguchihonmachi, Amagasaki, Hyogo, Japan
  • KATO Yohei
    Mitsubishi Electric Corporation, 5-1-1, Ofuna, Kamakura, Kanagawa, Japan
  • OCHIAI Yasutaka
    Mitsubishi Electric Corporation, 5-1-1, Ofuna, Kamakura, Kanagawa, Japan
  • TANAKA Kosuke
    Mitsubishi Electric Corporation, 5-1-1, Ofuna, Kamakura, Kanagawa, Japan
  • UJI Yoshihiro
    Kansai Electric Power Co., Inc., 3-11-20, Nakouji, Amagasaki, Hyogo, Japan
  • NAKAYAMA Hiroshi
    Chubu Electric Power Co., Inc., 20-1, Kitasekiyama, Ohdaka-cho, Midori-ku, Nagoya, Aichi, Japan

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Further improvement of the performance is requested to air-cooled heat pump chiller from the viewpoint of the global warming prevention.<br> Smaller unit is needed to facilitate the renewal from absorption chiller to air-cooled heat pump chiller.<br> To meet such needs, we developed compact new air-cooled heat pump chiller with high efficiency, 'Compact cube'.<br> The developed machine is side-flow type with U-shaped fin and tube heat exchangers. With this structure, the uniform air velocity, high packed density of the heat exchangers, and the unit miniaturization have been implemented. The refrigeration cycle with two-evaporating temperature has also been implemented.<br> The cooling COP of this cycle is 2% higher compared with conventional one-evaporating temperature cycle because of the rise of average evaporating temperature. In a new model, a new control system, which controls both capacity of compressors and air flow rate corresponding to heat load, has been implemented.<br> As a result, the developed machine achieved IPLV(Integrated Part load Value) to 6.2(MCHV-P1800AE) which is 29% better than the conventional unit.

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