The invention relates to an enthalpy difference control method of an airplane ground air conditioning system, which solves the technical problems of accurately judging the refrigeration load of an airplane ground air conditioning unit and improving the energy-saving effect of the airplane ground air conditioning unit, and detects the air flow q, the air inlet temperature t1, the air outlet temperature t2, the air inlet relative humidity phi 1 and the air outlet relative humidity phi 2. And then an air enthalpy value i1 of the inlet air and an air enthalpy value i2 corresponding to the default outlet air temperature are calculated, then the absolute value of the difference value of the two enthalpy values are multiplied by the air flow q to calculate the actual load Q1 of the air conditioning unit, and the number of started compressors or the rotating speed of the compressors are determined by comparing the actual load Q1 with a rated load Q2 set by a program. According to the enthalpy difference control method, the running number and the running rotating speed of the compressors are accurately controlled, and the energy-saving effect of the airplane ground air conditioning unit is improved.
本发明涉及一种飞机地面空调系统的焓差控制方法,其解决了如何较准确的判断飞机地面空调机组的制冷负荷,提高飞机地面空调机组的节能效果的技术问题,其检测空气流量q、进风温度t1、出风温度t2、进风相对湿度φ1、出风相对湿度φ2,然后计算出进风空气焓值i1和默认出风温度所对应的空气焓值i2,然后通过两个焓值的差值的绝对值乘以空气流量q计算空调机组的实际负荷Q1,通过比较实际负荷Q1与程序设定的额定负荷Q2,确定压缩机开启数量或压缩机转速。本发明焓差控制方法较准确地控制压缩机运行数量和运行转速,提高了飞机地面空调机组的节能效果。
Enthalpy difference control method of airplane ground air conditioning system
飞机地面空调系统的焓差控制方法
2021-04-16
Patent
Elektronische Ressource
Chinesisch
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