Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study

Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study

This paper presents the effect of nozzle assembly design on the performance of a partial combustion unit (PCU) using the scale-adaptive simulation (SAS) and non-intrusive laser measurement techniques. Four different configurations were tested, namely, nozzle without wing and three nozzles with wing,...

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Main Authors: Law, Woon Phui, Jolius, Gimbun
Format: Article
Language:English
Published: Elsevier 2019
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/1/Thermal%20performance%20enhancement%20of%20non-premixed%20syngas1.pdf
id ump-26021
recordtype eprints
spelling ump-260212019-10-08T08:13:20Z http://umpir.ump.edu.my/id/eprint/26021/ Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study Law, Woon Phui Jolius, Gimbun TP Chemical technology This paper presents the effect of nozzle assembly design on the performance of a partial combustion unit (PCU) using the scale-adaptive simulation (SAS) and non-intrusive laser measurement techniques. Four different configurations were tested, namely, nozzle without wing and three nozzles with wing, i.e., flat surface wing, semi-sphere hollow wing and bent wingtip. The syngas-oxygen reaction chemistry was calculated using non-premixed flame model incorporated with GRI-MECH 3.0 mechanism. The radiative heat transfer was modelled using the discrete ordinates (DO) model. The simulation was compared with the particle image velocimetry (PIV) and a two-dimensional laser doppler anemometry (LDA) measurement on a scaled-down PCU model. A good agreement between the SAS prediction and experimental measurement was obtained. It was found that the modified nozzle assembly design with a semi-sphere hollow wing yielded the highest combustion temperature owing to the intense turbulence-induced recirculation mixing of oxy-fuel. The modified nozzle assembly design introduced in this work increased the peak outlet combustion temperature up to 18 higher compared to the original design. The finding in this work may useful for design retrofits of a combustion system. Elsevier 2019-06-08 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26021/1/Thermal%20performance%20enhancement%20of%20non-premixed%20syngas1.pdf Law, Woon Phui and Jolius, Gimbun (2019) Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study. Energy, 182. 148 - 158. ISSN 0360-5442 (Print), 1873-6785 (Online) https://doi.org/10.1016/j.energy.2019.06.040 https://doi.org/10.1016/j.energy.2019.06.040
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Law, Woon Phui
Jolius, Gimbun
Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
description This paper presents the effect of nozzle assembly design on the performance of a partial combustion unit (PCU) using the scale-adaptive simulation (SAS) and non-intrusive laser measurement techniques. Four different configurations were tested, namely, nozzle without wing and three nozzles with wing, i.e., flat surface wing, semi-sphere hollow wing and bent wingtip. The syngas-oxygen reaction chemistry was calculated using non-premixed flame model incorporated with GRI-MECH 3.0 mechanism. The radiative heat transfer was modelled using the discrete ordinates (DO) model. The simulation was compared with the particle image velocimetry (PIV) and a two-dimensional laser doppler anemometry (LDA) measurement on a scaled-down PCU model. A good agreement between the SAS prediction and experimental measurement was obtained. It was found that the modified nozzle assembly design with a semi-sphere hollow wing yielded the highest combustion temperature owing to the intense turbulence-induced recirculation mixing of oxy-fuel. The modified nozzle assembly design introduced in this work increased the peak outlet combustion temperature up to 18 higher compared to the original design. The finding in this work may useful for design retrofits of a combustion system.
format Article
author Law, Woon Phui
Jolius, Gimbun
author_facet Law, Woon Phui
Jolius, Gimbun
author_sort Law, Woon Phui
title Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
title_short Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
title_full Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
title_fullStr Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
title_full_unstemmed Thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: Experimental and CFD study
title_sort thermal performance enhancement of non-premixed syngas combustion in a partial combustion unit by winged nozzle: experimental and cfd study
publisher Elsevier
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/
http://umpir.ump.edu.my/id/eprint/26021/1/Thermal%20performance%20enhancement%20of%20non-premixed%20syngas1.pdf
first_indexed 2023-09-18T22:40:15Z
last_indexed 2023-09-18T22:40:15Z
_version_ 1777416867096297472

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