Developing a new energy-saving, photosynthesis-promoting environmental control system for greenhouse production based on a heat pump with a heat storage system

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  • IWASAKI Yasunaga
    National Institute of Vegetable and Tea Science, National Agriculture and Food Research Organization
  • AIZAWA Masaki
    Miyagi Prefectural Institute of Agriculture and Horticulture
  • YOSHIDA Chie
    Miyagi Prefectural Institute of Agriculture and Horticulture
  • TAKAICHI Masuyuki
    National Institute of Vegetable and Tea Science, National Agriculture and Food Research Organization

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We installed an experimental environmental control system, consisting of a heat pump, a fan coil unit, a soil-water heat exchanger, and a heat storage tank, in a greenhouse and investigated its thermal characteristics. The system reduced ventilation time, and the CO2 concentration and humidity in the greenhouse thus remained high. Therefore, promotion of photosynthesis is expected. Its energy consumption was only 45% of that of a conventional oil-fired air heater.

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  • 農業気象

    農業気象 69 (2), 81-92, 2013

    日本農業気象学会

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