Energy-separation effect in a gas ejector

1976 ◽  
Vol 31 (6) ◽  
pp. 1469-1472 ◽  
Author(s):  
A. A. Stolyarov
Keyword(s):  
Energy Separation ◽  
Separation Effect

Investigations of Energy Separation Effect in Vortex Tube for Natural Gases

2013 ◽  
Vol 397-400 ◽  
pp. 205-208
Author(s):  
Wen Chuan Wang ◽  
Xiang Jun Fang ◽  
Shi Long Liu ◽  
Wen Long Sun
Keyword(s):  
Mass Fraction ◽  
Vortex Tube ◽  
Pressure Ratio ◽  
Three Dimensional ◽  
Energy Separation ◽  
Separation Effect ◽  
Natural Gases ◽  
Temperature Separation ◽  
Total Temperature ◽  
Cold Mass

This paper aims to investigate fixed composition natural gases including N2, CH4 and C2H4 energy separation effect in vortex tube. Energy separation phenomena of those gases were investigated by means of three-dimensional Computational Fluid Dynamics (CFD) method. Flow fields of natural gases in fixed inlet boundary conditions were simulated. The results main factors were found that affect the energy separation with cold mass fraction being 0.7 and pressure drop ratio being 3.90. At the same time, this paper has illustrated the effects and tendencies of energy separation with gases in the tube under the same cold mass flow fraction and cold pressure ratio. The results show mixture gases total temperature difference effect is unchanged varied with the cold mass fraction; CH4% has no effect on the vortex cold end temperature separation, but varied of CH4% has an influence in total temperature and hot end separation effect; total temperature separation effect of CH4% was divided into two sections, one is0%-80%, and the other 80%-100%.

scholarly journals Experimental research of shock wave processes influence on machineless gas flow energy separation effect

2017 ◽  
Vol 891 ◽  
pp. 012080
Author(s):  
Y A Vinogradov ◽  
A G Zditovets ◽  
A I Leontiev ◽  
S S Popovich ◽  
M M Strongin
Keyword(s):  
Shock Wave ◽  
Experimental Research ◽  
Gas Flow ◽  
Energy Separation ◽  
Wave Processes ◽  
Separation Effect ◽  
Flow Energy

Investigations of Energy Separation Effect in Vortex Tube for Real Gases

2013 ◽  
Vol 724-725 ◽  
pp. 1293-1300
Author(s):  
Jing Tang ◽  
Wen Chuan Wang ◽  
Xiang Jun Fang ◽  
Shi Long Liu ◽  
Wen Long Sun
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Vortex Tube ◽  
Ideal Gas ◽  
Energy Separation ◽  
Separation Effect ◽  
Real Gas ◽  
Real Gas Effect ◽  
Effect Difference ◽  
Gas Effect

This paper aims to investigate real gases energy separation effect such as real natural gas, CH4 and C2H4 in vortex tube. Energy separation phenomena of real natural gas (RNG) were investigated by means of three-dimensional Computational Fluid Dynamics (CFD) method. Flow fields of ideal natural gas (ING), or RNG in low and high pressure were simulated. The results main factors were found that affect the separation effect. At the same time, this paper has illustrated the effect and tendency of energy separation with real gas in the tube under the same cold mass fraction and pressure ratio. The results show low pressure ideal gas and real gas energy separation effect difference about 3-4°C, the real gas effect is not obvious; High pressure real natural gas (HPRNG) and ideal gas (HPING) effect difference is 13-14°C, the real gas effect is obvious; CH4 (LRCH4) and C2H4 (HRC2H4) energy separation effect is obvious and effect of real gas is generated.

NUMERICAL RESEARCH ON A SPECIAL FLUID PHENOMENON: RANQUE-HILSCH EFFECT

2005 ◽  
Vol 19 (28n29) ◽  
pp. 1723-1726 ◽  
Author(s):  
J. Y. LIU ◽  
M. Q. GONG ◽  
Y. ZHANG ◽  
H. HONG ◽  
J. F. WU
Keyword(s):  
High Speed ◽  
Numerical Solutions ◽  
Vortex Tube ◽  
Flow Characteristics ◽  
Temperature Fields ◽  
Energy Separation ◽  
Separation Effect ◽  
Speed Flow ◽  
Flow Features ◽  
Numerical Research

An application of CFD model for the simulation of a strongly swirling and high speed flow in the vortex tube is presented in this paper. A partly modified standard K-ε turbulent model has been used to investigate the flow characteristics and energy separation effect in the vortex tube. It is found that there is an obvious energy separation effect in the vortex tube and the numerical solutions of the flow and temperature fields agree well with the experiments. More detailed flow features are obtained by the CFD calculation. Based on the validated numerical model, the influence of the cold flow fraction on the energy separation effect is also investigated and compared with experimental results.

Numerical investigation of the energy separation effect and flow mechanism inside convergent, straight, and divergent double-sleeve RHVT

2019 ◽  
Vol 49 (1) ◽  
pp. 533-564 ◽  
Author(s):  
Adib Bazgir ◽  
Ali Heydari ◽  
Bahamin Bazooyar ◽  
Milad Mohammadniakan ◽  
Nader Nabhani
Keyword(s):  
Numerical Investigation ◽  
Energy Separation ◽  
Flow Mechanism ◽  
Separation Effect

Energy Separation in Vortex Tubes with a Divergent Chamber

1981 ◽  
Vol 103 (2) ◽  
pp. 196-203 ◽  
Author(s):  
Heishichiro Takahama ◽  
Hajime Yokosawa
Keyword(s):  
Standard Procedure ◽  
Vortex Chamber ◽  
Installation Space ◽  
Energy Separation ◽  
Separation Effect ◽  
Chamber Length ◽  
Temperature Separation ◽  
Higher Temperature ◽  
Large Installation ◽  
Vortex Tubes

The vortex tube is a simple device for separating a compressed gaseous fluid stream into two flows of high and low temperature. In order to produce a high temperature separation effect, the use of a sufficiently long tube with a smooth inner surface has been standard procedure up until now. However, since such a device requires a large installation space, an attempt was made to shorten the length of the vortex chamber without any fall in the temperature separation effect by using some divergent tubes as the vortex chamber. Experimental data obtained in these vortex chambers were compared with those in the commonly used straight vortex chambers. Observation indicates that a divergent tube with a small angle of divergence is effective in obtaining a higher temperature separation and makes possible a shortening of the chamber length.

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