Heat recovery air conditioning system

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Among the loads of building air conditioning systems, the fresh air load accounts for a large proportion; reducing this fresh air load is an effective measure to improve the energy efficiency of air conditioning systems. In air handling systems, exhaust air contains heat (in winter) or coolness (in summer) compared to fresh air; by using total heat exchangers or sensible heat exchangers to recover the energy in the exhaust air, the energy consumption of fresh air can be reduced. A heat recovery unit is usually installed in both the fresh air handling unit and the exhaust air handling unit. In summer, the temperature or humidity of the exhaust air is lower than that of the fresh air; by using this exhaust air (cold air) to pre-cool the fresh air introduced into the room, the amount of chilled water required by the air conditioning unit can be reduced ； In winter, the temperature or humidity of the exhaust air is higher than that of the fresh air; by using the exhaust air (hot air) to preheat the fresh air introduced into the room, the amount of hot water or steam required by the air conditioning unit can be reduced. This allows the heat (or cold) in the exhaust air to be transferred to the fresh air, thereby enabling heat recovery. Devices for recovering heat from exhaust gases include rotary wheel exchangers, plate exchangers, heat pipe exchangers, and ethylene glycol exchangers, among others. System advantages: 1. Widely applicable. 2. High heat recovery rate, energy-saving and environmentally friendly. 3. Heat (moisture) recovery can be carried out in all four seasons. 4. It has a long service life and is easy to install and remove. http://bbs.eszhileng.com/data/attachment/forum/201506/26/162924nb4een3akuarl838.png Refrigerator