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通过建立空调系统测试实验台,就直接蒸发式与串联式独立新风空调系统进行性能研究。研究影响系统性能各因素,并分析两种空调系统在各因素下的运行性能,以及室内盘管保持干工况下运行的适用条件。得出当室内负荷显热比低于0.8,或者室外温度升高到35℃、相对湿度增大到65%的工况下,串联式系统比直接蒸发式系统更具结露的风险。且适当增加新风量有利于改善室内温湿度过高的现象,但新风量过大,容易造成室温偏高。
Through the establishment of air-conditioning system test bench, the direct evaporative and tandem independent fresh air conditioning system performance study. The factors influencing the system performance were studied. The performance of the two air conditioning systems under various factors was analyzed. The operating conditions of the indoor coil under dry conditions were also studied. It is concluded that tandem systems are more dewatered than direct evaporative systems when the indoor sensible heat load ratio is below 0.8 or the outdoor temperature is raised to 35 ° C and the relative humidity is increased to 65%. And appropriate to increase the amount of fresh air is conducive to improving the phenomenon of indoor temperature and humidity is too high, but the fresh air volume is too large, likely to cause high room temperature.