Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method

Combustible carbon-based energy is still prevailing as the world’s leading energy due to its high energy density. However, the oxidation of these hydrocarbons disturbs the natural carbon cycle greatly by increasing greenhouse gases. As emission legislation becomes more rigorous, lean premixed combus...

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Main Author: Shokri Amzin
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:ChemEngineering
Subjects:
Online Access:https://www.mdpi.com/2305-7084/6/4/46
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author Shokri Amzin
author_facet Shokri Amzin
author_sort Shokri Amzin
collection DOAJ
description Combustible carbon-based energy is still prevailing as the world’s leading energy due to its high energy density. However, the oxidation of these hydrocarbons disturbs the natural carbon cycle greatly by increasing greenhouse gases. As emission legislation becomes more rigorous, lean premixed combustion becomes promising because it can reduce nitrogen oxides (NO<sub>x</sub>) and Carbon Monoxide (CO) emissions without compromising efficiency. However, utilising lean premixed flames in industrial combustors is not easy because of its thermo-acoustic instabilities associated with pressure fluctuations and the non-linearity in the mean reaction rate. Therefore, reliable predictive combustion models are required to predict emissions with sensible computational costs to use the mode efficiently in designing environmentally friendly combustion systems. Along with the promising methodologies capable of modelling turbulent premixed flames with low computational costs is the ERN-RANS framework. Thus, this study aims to compute a bluff-body stabilised premixed flames close to blow-Off using the ERN-RANS framework. As a result, a satisfactory agreement is reached between the predicted and measured values.
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spelling doaj.art-9d59986dc6414b5ab24c158e45bacdf62023-11-30T21:07:22ZengMDPI AGChemEngineering2305-70842022-06-01644610.3390/chemengineering6040046Computations of a Bluff-Body Stabilised Premixed Flames Using ERN MethodShokri Amzin0Department of Mechanical and Marine Engineering, Faculty of Engineering and Science, Western Norway University of Applied Sciences, Inndalsveien 28, 5063 Bergen, NorwayCombustible carbon-based energy is still prevailing as the world’s leading energy due to its high energy density. However, the oxidation of these hydrocarbons disturbs the natural carbon cycle greatly by increasing greenhouse gases. As emission legislation becomes more rigorous, lean premixed combustion becomes promising because it can reduce nitrogen oxides (NO<sub>x</sub>) and Carbon Monoxide (CO) emissions without compromising efficiency. However, utilising lean premixed flames in industrial combustors is not easy because of its thermo-acoustic instabilities associated with pressure fluctuations and the non-linearity in the mean reaction rate. Therefore, reliable predictive combustion models are required to predict emissions with sensible computational costs to use the mode efficiently in designing environmentally friendly combustion systems. Along with the promising methodologies capable of modelling turbulent premixed flames with low computational costs is the ERN-RANS framework. Thus, this study aims to compute a bluff-body stabilised premixed flames close to blow-Off using the ERN-RANS framework. As a result, a satisfactory agreement is reached between the predicted and measured values.https://www.mdpi.com/2305-7084/6/4/46ERNcombustionmodellingpremixed flameslean premixed
spellingShingle Shokri Amzin
Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
ChemEngineering
ERN
combustion
modelling
premixed flames
lean premixed
title Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
title_full Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
title_fullStr Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
title_full_unstemmed Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
title_short Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method
title_sort computations of a bluff body stabilised premixed flames using ern method
topic ERN
combustion
modelling
premixed flames
lean premixed
url https://www.mdpi.com/2305-7084/6/4/46
work_keys_str_mv AT shokriamzin computationsofabluffbodystabilisedpremixedflamesusingernmethod