VORTEX TUBE REFRIGERATION SYSTEM BASED ON COMPRESSED AIR (original) (raw)
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A Review of Vortex Tube Refrigeration System
Refrigeration plays an important role in developing countries, primarily for the preservation of food, medicine, and for air conditioning. Conventional refrigeration systems are using Freon as refrigerant. As they are the main cause for depletion of ozone layer, extensive research work is going on alternate refrigeration systems. Vortex tube is a non conventional cooling device, having no moving parts which will produce cold air and hot air from the source of compressed air without affecting the environment. When a high pressure air is tangentially injected into vortex chamber a strong vortex flow will be created which will be split into two air streams, one hot stream and the other is cold stream at its ends. An experimental investigation is to be performed in order to realize the behavior of a vortex tube system. In this work attention has to be focused on the classification of the parameters affecting vortex tube operation. The effective parameters are divided into two different ...
Review Paper on Experimental Investigation on Vortex Tube Refrigeration System
2018
A vortex tube is a simple device which splits a high pressure gas stream into a cold and hot stream without any chemical reactions or external energy supply. It is a mechanical device without any moving parts. The splitting of flow into regions of low and high temperature range is referred to as the temperature separation effect. The performance of vortex tube depends on two basic parameters, first is the working parameter such as inlet pressure of compressed air, and the other one is geometric parameters such as number of nozzles , diameter of nozzle, cone valve angle, length of hot side tube, cold orifice diameter, and as well as material of vortex tube. Vortex tube has interesting functions and several industrial applications, and, as a refrigerator, it is used as a spot cooling device in
An Experimental Performance Study of Vortex Tube Refrigeration System
Vortex tube is one of the non-conventional type refrigerating systems for the production of refrigeration. It is a simple device for producing low temperatures. Vortex tube is a simple energy separating device which is compact and simple to produce and to operate. Although intensive research has been carried out in many countries over the years, the efficiency is still low. In order to improve the energy separate efficiency of vortex tubes, a simple model have been created and performance study is done and various performance characteristics are observed and studied. The phenomenon of temperature distribution in confined steady rotating gas flows is called Ranque-Hilsch effect. The simple counter-flow vortex tube consists of a long hollow cylinder with tangential nozzle at one end for injecting compressed air. The flow inside the vortex tube can be described as rotating air, which moves in a spring-shaped vortex track. The peripheral flow moves toward the hot end where a hot end plu...
Performance analysis of Vortex tube refrigeration system
INTERNATIONAL JOURNAL OF ADVANCE RESEARCH, IDEAS AND INNOVATIONS IN TECHNOLOGY
This paper represents the experimentation of the Vortex Tube Refrigeration system. Vortex tube also is known as Ranque-Hilsch Vortex tube. A Vortex Tube is a Mechanical Device, which generates cold and hot streams from a single injection of pressurized gas. Without any moving parts or chemical reaction within the tube, the intersecting phenomenon of energy separation results only from fluid dynamic effects. The Control valve is a screw located at the hot end and cold end with thread on it which is used to restrict the flow of air due to which the small forced vortex takes place after stagnation point and free vortex getaway through the hot end as hot air and cold end as cold air. At the other end, a small orifice plate is located to further reduce the temperature Drop. The 2.5 HP compressors are used for experimentation for low pressures. Also, for higher pressures, it is difficult with a low capacity compressor to get accurate results. For this purpose, a model has been developed using experimental data to predict the results for the pressure range of 1to 6 bar. We have attached the Thermo-electric module to the system to generate electricity without affecting the efficiency of the system.
Experimental Investigation of Vortex Tube Refrigeration
in the refrigeration field, this most notably crucial good quality connected with almost any analysis or even improvement is their green mother nature, by the virtue of which the idea fulfils your simple requirements without the injury to the environment. Currently, surroundings safety is now an essential aspect of this sectors and people in common. This specific cardstock is aimed at boost within effectiveness of merely one this kind of green technique named vortex tube used for commercial location cooling down along with process cooling down requirements, for instance Place cooling down, Weld cooling down, Cheap slitting, Extrusion cooling down, Food cooling down etc. This commonly used cooling down methods operate the fuel along with fluids that either deplete this ozone layer or even contribute inside the global increased temperatures within the same as CO2 does. Attempts are already created to consist of numerous features to get the optimum productivity along with information about this vortex tube. In this behalf of review, my aim is to construct a vortex tube with maximum efficiency at minimum cost ,for that I had optimized the vortex tube and done experimental investigation on the vortex tube by changing different variable such as nozzle numbers, vortex tube material, different cone angles , different mass fraction.
DESIGN & ANALYSIS VORTEX TUBE REFRIGERATION SYSTEM
Transstellar Journals , 2020
A vortex tube works as a splitter of compressed gas stream bifurcating it into a hot and a cold stream without putting into use any chemical reaction or any external source of energy. This work focuses on variable geometries at the "hot end side" which are subjected to variable inlet parameters and the outcome of such an experiment is discussed. Hot end plugs have been employed to achieve the results. Three vortex tubes were designed, fabricated and tested for maximum temperature drop. A detailed experimental analysis has been worked upon to detail out the behaviour of the vortex tube. A suitably designed test rig has been helpful in investigating the role of geometrical parameters such as the angle of the inline conical valve, tip diameter of the inline conical valve.
IJERT-An Experimental Setup of Vortex Tube Refrigeration System
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/an-experimental-setup-of-vortex-tube-refrigeration-system https://www.ijert.org/research/an-experimental-setup-of-vortex-tube-refrigeration-system-IJERTV4IS030465.pdf The vortex tube is a refrigerating equipment that produces both cold as well as hot air at both opposite ends. The vortex tube's construction is such that it is made up of a hollow tube of either metallic or fibre components having a nozzle for letting in of compressed air and a diaphragm or a orifice for controlling the flow rate of air. When compressed air passes through a nozzle into the diaphragm of the vortex tube, the air forms a spiral shaped vortex, that causes the heating up of air, and when this air returns back, it cools down rapidly, producing a cooling effect. The main study in the Vortex tube is the study of the temperature distribution of the rotating air. This effect was first discovered by Ranque and later by Hilsch and hence this effect is called Ranque-Hilsch effect.
Fabrication and Experimental Analysis of Vortex Tube by Varying the Geometry and Material
Refrigeration is plays vital role in human life and it has become prominent to human habitat, primarily for the preservation of food grains, medicine also for large quantity storing of Chemicals, Industrial cooling, and air conditioning. In Conventional refrigeration systems Freon is used as refrigerant. As they are the main cause of pollution, depleting of ozone layer, cause health hazard. To avoid this damage extensive research work is going on alternate refrigeration systems. Vortex tube (VT) is non-conventional cooling equipment, without moving parts which are capable of separating hot air stream and cold air stream form an inlet air stream with desired pressure without affecting the environment. This device suits for vital applications due to its light weight, simple and more importantly it is compact.
A cooling system is very important for both man and machine. In general vapor compression refrigeration system and vapor absorption refrigeration system are used for refrigeration purpose. Vortex tube cooling system is a non conventional type of cooling system which is not used widely for cooling purpose. But it has many advantages over the conventional cooling system. In this project attempt has been made to construct a vortex tube with locally available materials. Effects of the number of inlet tangential nozzles, the tube diameter, and the diameter of the inlet nozzle on the temperature reduction in the tube were experimentally investigated. Throughout the project several number of vortex tubes were constructed by locally available materials like PVC pipe for performance test. The temperature drops of the cold air obtained from these experiments were not in good agreement with available data for comparison at a similar scale of separating conditions. The experimental results showed that the vortex tube with two inlet nozzles and cold tube diameter 12.7 mm yielded the highest temperature reduction which was found 4 .
TO INVESTIGATE THE EFFECT OF SPINNER GEOMETRY ON COP OF VORTEX TUBE REFRIGERATION: A Review
2018
The vortex tube is a simple device used in industry for generation of cold and hot air streams from a single compressed air supply. This simple device is very efficient in separation of air streams of different temperatures. Any fluid (air) that flows and rotates about an axis such as a tornado, is called a vortex. A vortex tube creates a vortex and separates it into two air streams-one hot and one cold. Figure shows how a vortex tube works. Compressed air enters a cylindrical chamber which causes the air to spiral. At the end of the hot tube, a small portion of this air exits through a needle valve as hot air. The remaining air is forced back through the center of the cylindrical tube. This super-cooled air flows through the center of the generator and exits through the cold port and is the required part of our project. The geometry of vortex tube changes in this experiment is spinner notches angle which is situated inside the vortex tube after nozzle. Due to this part the flow of ...