新型全新风空气处理机组实验研究
Experimental study on a novel all outdoor air handling unit
摘要：
设计了一种新型转轮全热回收型直接蒸发式全新风空气处理机组。介绍了该机组的内部结构及工作原理。夏季该机组利用恒温恒湿室改变排风参数。测试夏季工况下该机组单独转轮运行、单独制冷系统运行以及转轮与制冷联合运行下的性能。测试结果表明：与单独转轮运行相比，联合运行下机组能够有效调控新风送风温度；与单独制冷系统运行相比，联合运行下制冷系统的蒸发负荷明显降低，且随室内排风温度的升高而增加；利用转轮后的排风冷却冷凝器，可有效降低冷凝温度，提高联合运行机组制冷性能系数。
Abstract：
Designs a novel rotary heat exchanging direct evaporative all outdoor air handling unit (AHU). Presents the inner structure and working principle of the unit. The unit changes exhausting air parameters using the room with constant temperature and humidity under the summer condition. Tests the performances of AHU under different operation modes in the summer condition including rotary heat exchanger alone, refrigerating system alone and integrated operating. The testing results show that compared with the operation mode of rotary heat exchanger alone, the unit with integrated operation can regulate supply air temperature more effectively, and that compared with the mode of refrigerating system operation alone, the evaporation load of refrigerant system is reduced greatly and it is increased when the indoor air supply temperature is raised under the integrated operation mode. The system uses exhaust air after rotary heat exchanger to cool down the condenser and decrease the condensing temperature efficiently, which contributes to greatly increase the refrigeration performance coefficient.
Keywords:outdoor air handling unit, heat recovery, coefficient of performance, energy saving, rotary