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2020 Vol.25, Issue 2 Preview Page

Research Article

Numerical Simulation on MILD Combustion Characteristics with Ethanol Fuel using FGM

FGM을 이용한 에탄올 연료의 MILD 연소특성에 대한 수치해석 연구

Chun Loon Cha1
,
Sang Soon Hwang1*
차 천륜1
,
황 상순1*
1Department of Mechanical Engineering, Incheon National University
1인천대학교, 기계공학과
* Corresponding Author
30 June 2020. pp. 18-27
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Abstract

MILD combustion has been considered as one of the promising combustion technology for high thermal efficiency and reducing nitrogen oxides and carbon dioxide emissions. Recently, many studies have revealed the potential of MILD combustion in various power systems but most studies have been focused on gas-phase fuel MILD combustion. Therefore further study on MILD combustion using liquid fuel is needed. In this work, we will focus on the numerical simulation of the effects of diluted gas velocity on the formation of liquid fuel MILD combustion using FGM using ethanol fuel as a carbon-neutral fuel. A two-stage combustion structure similar to ‘Deft jet in hot co-flow’ configuration was used to study the formation of liquid fuel MILD combustion for the validation purpose. The diluted burnt gas velocity from the first premixed combustion chamber can be controlled by an open ratio of the nozzle between two combustion chambers. The results show that the local high-temperature region was decreased and the flame temperature was uniformly distributed due to the intense mixing by the higher momentum of ejected diluted burnt gas from the venturi type nozzle considering atomization and vaporization of the injected liquid fuel.

Keywords
MILD combustion
Spray combustion
Ethanol
FGM
Low NOx

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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 : 25
  • No :2
  • Pages :18-27
  • Received Date : 2019-11-18
  • Revised Date : 2019-12-07
  • Accepted Date : 2020-01-07
  • DOI :https://doi.org/10.15231/jksc.2020.25.2.018
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