کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
652156 | 885005 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An experimental study on the effect of the valve angle of counter-flow Ranque–Hilsch vortex tubes on thermal energy separation An experimental study on the effect of the valve angle of counter-flow Ranque–Hilsch vortex tubes on thermal energy separation](/preview/png/652156.png)
An experimental study is conducted to investigate effects of the conical valve angle on thermal energy separation in a counter-flow vortex tube. A new geometry is designed for the cold end side, which is called ‘helical swirl flow generator’. Combined and interactive effects of the helical length of the swirl flow generator, the ratio of the tube length to the tube inner diameter (L/D), the inlet pressure and especially the angle of the conical valve on the performance of the vortex tube are comparatively investigated as a function of the cold mass fraction, yc. Four different conical valves have been used with the angle of 30°, 45°, 60° and 75°. Finally, it is observed that the effect of the valve angle on the performance changes according to the value of L/D and, it has a weak influence on the system performance.
Journal: Experimental Thermal and Fluid Science - Volume 34, Issue 7, October 2010, Pages 966–971