Thermodynamic Analysis of Dual Evaporation Temperature and Humidity Independent Control Air Conditioning System
An air conditioning system with inde-pendent control of dual evaporation temperature and humidity based on cold recovery(referred to as THIC air conditioning system)is proposed,and the thermo-dynamic models of traditional air conditioning system and THIC air conditioning system are established.Tak-ing an office in Beijing as the application object,the thermodynamic characteristics of traditional air condi-tioning system and THIC air conditioning system are analyzed and calculated.In the THIC air conditioning system,the high-temperature refrigeration cycle bears 71.4％of the total cooling load,and the low-tempera-ture refrigeration cycle bears 28.6％of the total cool-ing load.Compared with the traditional air conditioning system,the total power consumption of the THIC air conditioning system is reduced by 8.8％,but the fan power consumption of the THIC air conditioning system is increased by 2.94％due to the increase of return air volume.Compared with the traditional air conditioning system,the cooling performance coefficient of the THIC air conditioning system is increased by 9.83％.The cold recovery capacity of the cold recycler is 0.512 kW,and the energy savings rate of the cold recycler is 2.77％.Compared with the traditional air conditioning system,the exergy efficiency of the THIC air condition-ing system is increased by 10.4％,and the total exergy loss is reduced by 105.84 W with a decrease of 10.95％.
independent control of temperature and humiditydual evaporation temperaturecold recy-clingthermodynamic characteristics
国家科技期刊平台
NSTL
万方数据
