制冷装置用电子膨胀阀冷却阶段热舒适性.pdf

＂one-drivers-two＂heatpumpair-conditioner （KFR-20GW×2） ABSTRACT This article simply introduced the heat pump ＂one-drivers-two ＂room air-conditioner in design several questions: New green refrigerant use ， the calculation of the thermodynamic energy circulation, evaporator and condenser computation air-conditioner ， appendix choice, as well as heat pump room air-conditioner development and forecast. The air conditioning is as the name suggests carries on the adjustment to the air parameter, in order to cause the environment to suit our request. With development of our country national economy and the improvement of the peoples lives level ，peoples living conditions condition request also in gradually enhancement. Therefore the air conditioning holds the very important position in the daily life. Also causes the air conditioning technology in the unceasing enhancement, achieves the people to the environment request. The heat pump room air-conditioner both can make cold and heat, can satisfy the requests of the winter and summer, so it gets a fast development. The air-conditioner is facing the miniaturization, the energy conservation, the intellectualization, is artistic, the health direction develops. In recent years, along with the housing condition change, some users stemming from saved spatial the consideration, started to purchase one-drivers-two air-conditioners, ＂ ＂ the promotion pulls as soon as tows two air-conditioners the development and the improvement. KEYWORDS The heat pump , One-drivers-two air-conditioner, New green refrigerant, Energy conservation, Environmental protection