Year-round application research of evaporative cooling air conditioning outdoor air systems

According to the year-round climate and the building energy consumption characteristics in summer and winter in dry, severe cold and cold zones, through the hourly outdoor air energy consumption simulation, obtains that for the year-round evaporative cooling air conditioning system with heat recovery devices, the outdoor air energy saving in winter is greater than that in summer. When choosing a heat recovery device, the winter heat recovery efficiency should be paid attention to. The rotary heat exchanger has the largest energy saving rate and the best energy saving effect among various kinds of heat recovery devices. Based on the above research, further analyses the humidification demand of outdoor air in winter and summer, the variation range of outdoor air rate and the pipe diameter selection of water system of evaporative cooling air conditioning systems. Finally, proposes the anti-freezing measures for winter operation of evaporative cooling air conditioning units.