A Review on Ranque-Hilsch Vortex Tube and Its Usage in Cooling System | Chapter 3 | Current Approaches in Engineering Research and Technology Vol. 7

 

The purpose of this review paper is to overview of the past investigations of the design criteria of vortex tubes, to draw together the mass of literature, and to provide detailed information on the design of vortex tubes. The vortex tube, also known as the Ranque-Hilsch vortex tube (RHVT), is a mechanical device that separates compressed air into hot and cold streams flowing in vortex motion/tangentially into the vortex chamber through inlet nozzles. This instrument has no moving components, does not break or wear, and hence requires minimum maintenance. The vortex tube is ideal for a variety of applications since it is simple, lightweight, quiet, and small, and it does not need Freon or other refrigerants (HFCs or CFCs). Though the vortex tube is simple in structure, the internal mechanism of airflow and energy transfer is very complex. A series of theories have been presented by researchers regarding the energy flow inside the vortex tube. This paper after a brief introduction and literature survey, focuses on the design criteria, applications of RHVT and the results obtained up to now. One of the objectives of this paper is to highlight the application of this device and its usage in the industry, rough estimates of temperature that are achieved and which be used in particle applications. The review will conclude with comments on future directions that this device can be used and can be applied for further study and investigation. By reviewing most of the theories, predicting the vortex tube performance and showing the common features and promising add-ons, this review paper could set the basis for the development of the first commonly accepted design model of counter-flow vortex tubes working with perfect gas for spot cooling application.

 

Author(s) Details

Mohammed Hameeduddin Haqqani
Career Point University, Kota, India.

Md. Azizuddi
Deccan College of Engineering and Technology, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/caert/v7/1287

Use of MADM Techniques for Optimization of Thermal Performance of Ranque Hilsch Vortex Tube | Chapter 4 | Research and Developments in Engineering Research Vol. 3

 In the study MADM methods are secondhand for optimization of concerning manipulation of numbers combinations. The whirlpool tube is very natural thermo-fluidic machinery which produce low hotness and high temperature air streams. The basin fluid is tangentially compressed into the fjord nozzles of vortex hose. Thermal performance of whirlpool tube is remarkably influenced by allure geometrical and functional parameters. In this study effect of miscellaneous geometrical (L/D percentage: 15, 16, 17, 18; exit valve angle; ; cold end opening diameter: 5,6 and , hose divergence angle: ) and functional parameters (fjord pressure: 2 to 6 bars) on the performance of whirlpool tube have existed investigated tentatively. The best configuration of the whirlpool tube is preferred using Multiple Attribute Decision Making (MADM) methods. COP for cooling and the ideal hotness difference on the cold end were used to analyse the whirlpool tube's depiction. The WSM (Weighted Sum Method), WPM (Weighted Power Method), TOPSIS (Technique for Order Preference by Similarity to Ideal Solution), and AHP (Analytical Hierarchy Process) MADM (Multiple Attribute Decision Making) methods are secondhand. Experimental best performing mixtures are obtained for Length to Diameter percentages  with exit valve angle as  and  at opening diameter  for basin pressure of 5 and 6 bar pressure. Best COP, efficiency and cold end hotness difference are  and  individually for the combination of 15  spigot angle,  orifice width and 2 bar pressure by MADM techniques.

Author(s) Details:

K. D. Devade,
India College of Engineering and Management, Pune-410506, India.

A. T. Pise,
DTE, Mumbai, Maharashtra-400001, India.

Please see the link here: https://stm.bookpi.org/RADER-V3/article/view/10508