Exergy analysis of a counter-flow Ranque-Hilsch vortex tube having different helical vortex generators

2012 ◽  
Vol 10 (2) ◽  
pp. 228 ◽  
Author(s):  
Burak Markal ◽  
Orhan Aydı ◽  
N.A. n ◽  
Mete Avcı
Keyword(s):  
Exergy Analysis ◽  
Vortex Tube ◽  
Vortex Generators ◽  
Counter Flow ◽  
Helical Vortex

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.

scholarly journals Kelvin waves on helical vortex tube in swirling flow

2018 ◽  
Vol 980 ◽  
pp. 012003
Author(s):  
M A Tsoy ◽  
S G Skripkin ◽  
P A Kuibin ◽  
S I Shtork ◽  
S V Alekseenko
Keyword(s):  
Vortex Tube ◽  
Swirling Flow ◽  
Kelvin Waves ◽  
Helical Vortex

Application of mixed level design of Taguchi method to counter flow vortex tube

2022 ◽  
Author(s):  
Hitesh Thakare ◽  
Ashok Parekh ◽  
Arif Upletawala ◽  
Bhushan Behede
Keyword(s):  
Taguchi Method ◽  
Vortex Tube ◽  
Counter Flow ◽  
Level Design ◽  
Flow Vortex

On the exergy analysis of the counter-flow dew point evaporative cooler

Energy ◽  
2018 ◽  
Vol 165 ◽  
pp. 958-971 ◽  
Author(s):  
Jie Lin ◽  
Duc Thuan Bui ◽  
Ruzhu Wang ◽  
Kian Jon Chua
Keyword(s):  
Exergy Analysis ◽  
Dew Point ◽  
Counter Flow ◽  
Evaporative Cooler

scholarly journals The velocity field induced by a helical vortex tube

2005 ◽  
Vol 17 (10) ◽  
pp. 107101 ◽  
Author(s):  
Y. Fukumoto ◽  
V. L. Okulov
Keyword(s):  
Velocity Field ◽  
Vortex Tube ◽  
Helical Vortex

scholarly journals Numerical study of a double inlet chamber counter flow vortex tube with insulation

2021 ◽  
Vol 850 (1) ◽  
pp. 012024
Author(s):  
Ravi Kant Singh ◽  
Achintya Kumar Pramanick ◽  
Subhas Chandra Rana
Keyword(s):  
Vortex Tube ◽  
Numerical Study ◽  
Working Fluid ◽  
Turbulent Model ◽  
Counter Flow ◽  
Fluent Software ◽  
Exit Temperature ◽  
Flow Vortex ◽  
Inlet Chamber ◽  
Double Chamber

Abstract The present study intends to improve the performance of the Ranque-Hilsch counter flow vortex tube, analysed using computational fluid dynamics. In the axisymmetric 3-D, steady-state, compressible, and turbulent flow vortex tube, the air has been used as the working fluid. The ANSYS17.1 FLUENT software has been used with the standard º-ε turbulent model for different mass fraction of cold fluid and inlet pressure in the numerical simulation and validated with the experimental results. It is observed from the study that as the inlet chambers number increases from 1 to 2, there is a decrease of 7.8 % in the cold exit temperature of the vortex tube. However, insulating the double chamber vortex tube leads to a further reduction of 4.2% in the cold exit temperature. Therefore, it indicates that the overall decline in the cold exit temperature from one chamber non-insulated vortex tube to double chamber insulated vortex tube is 9.6%. In terms of cold exit temperature, it can be concluded that using a double inlet chamber vortex tube with insulation yields the optimum results.

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