摘要
对实验室现有空气调节处理过程实验台进行改造,在压缩机和节流阀之间装设套管式蒸发器,通过其制得冷冻水,将冷冻水经由水泵送入表冷器中,与空气进行换热后重新返回套管式蒸发器中。通过温控器实现表冷器入口冷冻水温度的控制,表冷器进出口冷冻水温通过布置热电偶进行测量,冷冻水流量通过转子流量计进行测量,利用原有干湿球温度计测量空气进出口干湿球温度,进而实现表冷器热交换效率、接触系数、析湿系数和换热量的测定。改造后的实验台还可以作为冷热源,在教学和科研中发挥作用。
This paper introduces of the thermodynamic performance test system of surface air cooler in air conditioner.Double-pipe heat exchanger is installed between compressor and throttle valve,by which chilled water can be gained.Then the chilled water is pumped to surface air cooler to realiaze the heat exchange with air.The surface air cooler inlet water temperature is controlled by thermostat.Thermocouples are used to measure inlet and outlet chilled water temperature of surface air cooler.The chilled water flow rate is measured by rotor flowmeter.The dry-bulb and wet-bulb temperature of air inlet and outlet are measured by existing dry-bulb and wet-bulb thermometer.The measurement of effiency of heat-exchange,contact factor,separated water factor,heat transfer rate can also be realiazed.The experimental table by modification can be used widely,it will play an important role in teaching and technology research.
出处
《实验室研究与探索》
CAS
北大核心
2011年第5期26-27,31,共3页
Research and Exploration In Laboratory
基金
河南省科技攻关项目(102102210171)
河南科技大学实验技术开发基金项目(SY0910026)
关键词
表冷器
热工性能
实验台改造
surface air cooler
thermodynamic performance
experimental table modification
