Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion
Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is partially filled with porous material. Syngas...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-09-01
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| Series: | Case Studies in Thermal Engineering |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X1830399X |
| _version_ | 1818498014578212864 |
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| author | Santiphong Klayborworn Watit Pakdee |
| author_facet | Santiphong Klayborworn Watit Pakdee |
| author_sort | Santiphong Klayborworn |
| collection | DOAJ |
| description | Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is partially filled with porous material. Syngas stream fed by high-speed jet entrains co-flow air causing reaction in a non-premixed manner. Turbulent flame is generated over the free-space and porous zones, where the coupled energy and species transports are computed. The k−ω model is used turbulent reaction are modeled using the eddy dissipation concept. Effects of porous material in the burner are analyzed. It was found that porosity and porous thickness have significant effects on flame and heating characteristics. Flame gets broadest at an intermediate value of porosity. The present investigations can be practically applied for the area of low and medium process temperatures such as in glass manufacturing which would enable combustion with low emission rates, reduced energy consumption and quality improvements due to improved controllability. Keywords: Non-premixed, Turbulent flame, Round-jet burner, Syngas, Porous insert, Numerical model |
| first_indexed | 2024-12-10T18:52:32Z |
| format | Article |
| id | doaj.art-652ffb6e0f424bdd9299a20aea4e3ebb |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-10T18:52:32Z |
| publishDate | 2019-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-652ffb6e0f424bdd9299a20aea4e3ebb2022-12-22T01:37:15ZengElsevierCase Studies in Thermal Engineering2214-157X2019-09-0114Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustionSantiphong Klayborworn0Watit Pakdee1Center for R&D on Energy Efficiency in Thermo-Fluid Systems Department of Mechanical Engineering, Faculty of Engineering, Thammasat University Klong Nueng, Klong Lueng, Pathumtani, ThailandCenter for R&D on Energy Efficiency in Thermo-Fluid Systems Department of Mechanical Engineering, Faculty of Engineering, Thammasat University Klong Nueng, Klong Lueng, Pathumtani, Thailand; Corresponding author.Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is partially filled with porous material. Syngas stream fed by high-speed jet entrains co-flow air causing reaction in a non-premixed manner. Turbulent flame is generated over the free-space and porous zones, where the coupled energy and species transports are computed. The k−ω model is used turbulent reaction are modeled using the eddy dissipation concept. Effects of porous material in the burner are analyzed. It was found that porosity and porous thickness have significant effects on flame and heating characteristics. Flame gets broadest at an intermediate value of porosity. The present investigations can be practically applied for the area of low and medium process temperatures such as in glass manufacturing which would enable combustion with low emission rates, reduced energy consumption and quality improvements due to improved controllability. Keywords: Non-premixed, Turbulent flame, Round-jet burner, Syngas, Porous insert, Numerical modelhttp://www.sciencedirect.com/science/article/pii/S2214157X1830399X |
| spellingShingle | Santiphong Klayborworn Watit Pakdee Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion Case Studies in Thermal Engineering |
| title | Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion |
| title_full | Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion |
| title_fullStr | Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion |
| title_full_unstemmed | Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion |
| title_short | Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion |
| title_sort | effects of porous insertion in a round jet burner on flame characteristics of turbulent non premixed syngas combustion |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X1830399X |
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