Numerical Investigation on Thermal Flow-Reversal Oxidation of Dilute Methane

2011 ◽  
Author(s):  
Deng Yangbo ◽  
Yan Chunji ◽  
Xie Maozhao
Keyword(s):  
Numerical Investigation ◽  
Flow Reversal ◽  
Thermal Flow

Aerodynamic CFD simulations of experimental and industrial thermal flow reversal reactors

2019 ◽  
Vol 373 ◽  
pp. 1367-1379 ◽  
Author(s):  
Krzysztof Gosiewski ◽  
Anna Pawlaczyk-Kurek
Keyword(s):  
Flow Reversal ◽  
Thermal Flow ◽  
Cfd Simulations

Numerical Study of Pressure Loss in Ceramic Bed of Thermal Flow Reversal Reactor

2013 ◽  
Vol 655-657 ◽  
pp. 149-153
Author(s):  
Zhen Qiang Gao ◽  
Rui Xiang Liu ◽  
Yong Qi Liu
Keyword(s):  
Pressure Loss ◽  
Static Pressure ◽  
Pressure Field ◽  
Numerical Study ◽  
Volume Flow Rate ◽  
Flow Reversal ◽  
Thermal Flow ◽  
Dimensional Model ◽  
Model Fluid ◽  
Main Factors

This paper describes the use of a commercial CFD code, FLUENT, to model fluid flow in thermal flow reversal reactor (TFRR) for lean methane oxidation. A two dimensional model is used. Pressure loss in ceramic bed of TFRR was focused on, and the effects of main factors are presented. The results show that the contours of static pressure in ceramic bed are slightly inclined due to the gradually variation distribution of velocity; the pressure field in distributing header is more uniform than that of collecting header; the ratio of header’s height to ceramic length influences the pressure loss most and with the increase of the ratio the pressure loss of TFRR decreased dramatically; the pressure loss increased with the increase of volume flow rate. The structure of headers is the most important factor which affects the pressure loss of TFRR.

scholarly journals Experimental and numerical investigation of thermal flow meter

2015 ◽  
Vol 36 (3) ◽  
pp. 149-160 ◽  
Author(s):  
Artur Cebula
Keyword(s):  
Temperature Distribution ◽  
Numerical Model ◽  
Surface Temperature ◽  
Numerical Investigation ◽  
Flow Rate ◽  
Experimental Investigations ◽  
Thermal Flow ◽  
Wall Surface ◽  
Flow Meter ◽  
Calculation Results

Abstract The paper presents analytical and numerical model calculation results of the temperature distribution along the thermal flow meter. Results show a very good conformity between numerical and analytical model. Apart from the calculation results the experimental investigations are presented. The author performed the test where a temperature of duct wall surface was measured. The relation between mass flow rate in terms of the duct surface temperature difference was developed.

The Numerical Simulation Research on Thermal Flow-Reversal Reactor of Mine Ventilation Gas

2014 ◽  
Vol 926-930 ◽  
pp. 1627-1631
Author(s):  
Wei Feng Zou ◽  
Bo Lan
Keyword(s):  
Numerical Simulation ◽  
Gas Flow ◽  
Single Channel ◽  
Volume Fraction ◽  
Mine Ventilation ◽  
Optimal Operation ◽  
Flow Reversal ◽  
Thermal Flow ◽  
Reactor Performance ◽  
Operation Condition

The paper uses computational fluid dynamics software FLUENT to build a single-channel numerical simulation model of the mine ventilation gas Thermal Flow-Reversal Reactor (TFRR). Combining with the analysis of orthogonal test, the influences that four factors (Initial temperature distribution, Ventilation gas flow velocity, Volume fraction of methane, Exchange period) act on reactor performance is investigated. An optimal operation condition is proposed by the establishment of the priority sequence of these four factors.

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