Abstract
Vortex tube (VT) is a simple mechanical device which splits room-temperature compressed gas into cold and hot streams. Generally, it can produce cold stream down to around -30℃ and hot stream up to around 130℃. Since its thermodynamic performance is determined based on the measured temperatures of cold and hot flows discharged from VT, the accuracy of the temperature measurement is important. In this research, two types of temperature probe are used to measure the total temperature and their measurement accuracy is clarified. Moreover, the cold gas temperatures of VT are measured by the total temperature probe in order to clarify the cold flow characteristics.
