A Numerical Study on the Thermal Decomposition of n-dodecane at Various Mass Flow Rate for Super-critical Condition in a Cylindrical Tube

Seunghyeok Lee; Yuangang Wang; Chae Hoon Sohn

doi:10.15231/jksc.2021.26.4.013

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2021 Vol.26, Issue 4 Preview Page Next Page

Research Article

A Numerical Study on the Thermal Decomposition of n-dodecane at Various Mass Flow Rate for Super-critical Condition in a Cylindrical Tube 초임계 조건에서 질량 유량 변화에 따른 원통관내 n-dodecane의 열분해 반응에 관한 수치적 연구

31 December 2021. pp. 13-19

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Abstract

Numerical simulation on thermal decomposition reaction of n-dodecane in a cylindrical tube is conducted by changing mass flow rate. Thermal decomposition mechanism adopted in the present study is the proportional product distribution (PPD) model for n-dodecane, which is a 1-step global mechanism. All of simulations are performed atr the same temperature of 665 K and pressure of 3 MPa with the wall heated at 580 W. The mass flow rate of n-dedecane increases from 3 to 4 kg/h. In addition, numerical simulations with kinetics mechanisms with and without pyrolysis are conducted and their results of reactive flow fields are compared with each other. The physical properties of the mixture produced by n-dodecane decomposition are evaluated along the tube. The conversion rate of the fuel and the volume of endothermic reaction decreases as the mass flow increases.

Keywords

Conversion rate

Mass flow rate

n-dodecane

Supercritical condition

Thermal decomposition

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Information

Publisher :The Korean Society Combustion
Publisher(Ko) :한국연소학회
Journal Title :Journal of The Korean Society Combustion
Journal Title(Ko) :한국연소학회지
Volume : 26
No :4
Pages :13-19
Received Date : 2021-09-10
Revised Date : 2021-10-05
Accepted Date : 2021-10-18
DOI :https://doi.org/10.15231/jksc.2021.26.4.013

Journal of The Korean Society CombustionISSN:1226-0959(Print) 2466-2089(Online)한국연소학회

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