Experimental investigation of the effects of threefold type Ranque–Hilsch vortex tube and six cascade type Ranque–Hilsch vortex tube on the performance of counter flow Ranque–Hilsch vortex tubes

2011 ◽  
Vol 34 (6) ◽  
pp. 1366-1371 ◽  
Author(s):  
Kevser Dincer
Keyword(s):  
Experimental Investigation ◽  
Vortex Tube ◽  
Counter Flow ◽  
Cascade Type ◽  
Vortex Tubes

scholarly journals Распределение температуры на оси камеры расширения при различных схемах работы вихревой трубы

2021 ◽  
Vol 47 (19) ◽  
pp. 41
Author(s):  
В.Н. Самохвалов
Keyword(s):  
Air Temperature ◽  
Vortex Tube ◽  
Axial Zone ◽  
Expansion Chamber ◽  
Counter Flow ◽  
Heating And Cooling ◽  
Flow Vortex ◽  
Single Flow ◽  
Vortex Tubes ◽  
Nozzle Inlet

The change in air temperature along the axis of the expansion chamber in the zones of the nozzle inlet and the flow swirler in the direct-flow, counter-flow, three-flow and single-flow vortex tubes has been investigated. It has been established that in all cases, the cooling of air in the vortex tube occurs in the zone of the swirling device, and its heating - in the zone of unwinding of the flow. The change in air temperature in the axial zone along the length of the expansion chamber occurs due to heat exchange between the heating and cooling zones.

Experimental Study About Performance Analysis of Parallel Connected Ranque–Hilsch Counter Flow Vortex Tubes With Different Nozzle Numbers and Materials

2018 ◽  
Vol 140 (11) ◽  
Author(s):  
Hüseyin Kaya ◽  
Fahrettin Günver ◽  
Onuralp Uluer ◽  
Volkan Kırmacı
Keyword(s):  
Exergy Analysis ◽  
Vortex Tube ◽  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Inlet Pressure ◽  
Working Fluid ◽  
Counter Flow ◽  
Heating And Cooling ◽  
Flow Vortex ◽  
Vortex Tubes

An experimental analysis for parallel connected two identical counter flow Ranque–Hilsch vortex tubes (RHVT) with different nozzle materials and numbers was conducted by using compressed air as a working fluid in this paper. Heating and cooling performance of vortex tube system (circuit) and the results of exergy analysis are researched comprehensively according to different inlet pressure, nozzle numbers, and materials. Nozzles made of polyamide plastic, aluminum, and brass were mounted into the vortex tubes individually for each case of experimental investigation with the numbers of nozzles 2, 3, 4, 5, and 6. The range of operated inlet pressure 150–550 kPa with 50 kPa variation. The ratio of length–diameter (L/D) of each vortex tube in the circuit is 14 and the cold mass fraction is 0.36. Coefficient of performance (COP) values, heating, and cooling capacity of the parallel connected RHVT system were evaluated. Further, an exergy analysis was carried out to evaluate the energy losses and second law efficiency of the vortex tube circuit. The greatest thermal performance was obtained with aluminum-six-nozzle when taking into account all parameters such as temperature difference, COP values, heating and cooling capacity, and exergy analysis.

Investigation of Performance of Heating and Cooling of Counter Flow Ranque-Hilsch Tubes with L/D=15, 16, 17, 18 for Brass

2013 ◽  
Vol 372 ◽  
pp. 350-353 ◽  
Author(s):  
Kevser Dincer ◽  
Adnan Berber ◽  
Dilek Nur Ozen
Keyword(s):  
Vortex Tube ◽  
Experimental Results ◽  
Counter Flow ◽  
Working Pressure ◽  
Cooling Performance ◽  
Cold Flow ◽  
Heating Performance ◽  
Heating And Cooling ◽  
Maximum Heating ◽  
Vortex Tubes

In this study, heating and cooling performances of counter flow Ranque-Hilsch vortex tubes (RHVTs) were experimentally investigated for brass. The vortex tubes were made of brass. Diameter of vortex tube (D) was 10 mm. Length of vortex tube (L) was 15D, 16D, 17D and18D. The number of nozzles (Nn) was 5. The conical edges of the plugs have a slope of 30o angle. Working pressure of Ranque-Hilsch was 460 kPa (absolute). According to the experimental results, the maximum heating performance of the RHVT system was found to be 39,5 °C at P17 and the maximum cooling performance of the RHVT in this study was found to be-28,6 °C at P18. An increase in fraction of cold flow (ξ) led to a increase in the heating performance.

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