涡流板能量分离特性实验研究

涡流板由多个涡流管集合而成，可以克服单个涡流管制冷量小的缺点．用实验方法研究了人口参数和冷流比对涡流板能量分离特性的影响．实验中以空气为介质分别研究了人口温度、压力及冷流比对涡流板的制冷效应、制热效应、绝热效率的影响规律．研究结果表明，人口温度升高有利于涡流板能量分离；人口压力升高，涡流管制冷、制热效应增加而绝热效率下降；冷流比增加，涡流板制热效应和绝热效率增加，而制冷效应下降．因此，涡流板与单管涡流管具有相同的能量分离特性，为进一步研究涡流板奠定了基础．

An experimental study on characteristics of energy separation in a vortex board

The vortex board is integrated with several vortex tubes,which can surmount small cooling power of single vortex tube.The influence of inlet parameter and configuration and cold air fraction on the vortex board performance was investigated by experiment with air as a medium.The main influence of inlet temperature,pressure and cold air fraction on the vortex board performance was obtained.The result indicates that the performance can be improved by increasing the inlet temperature.The cold temperature difference and hot temperature difference increased by increasing the inlet pressure,but adiabatic efficiency decreased.The hot temperature difference and adiabatic efficiency increased by increasing cold air fraction,but cold temperature difference decreased.So the vortex board has the same separation effect just as a signal vortex tube.It has laid the foundation of further studying for the vortex board.