Experimental research of a small-scale industrial furnace with regenerative disc-flame burners
Regenerative combustion technology has many advantages such as fuel saving, high combustion efficiency and low emission, and it has been widely used for large-scale furnaces. However, when regenerative combustion technology is adopted for small-scale furnaces, many technical problems occur. In this...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22008504 |
| _version_ | 1797956244395261952 |
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| author | Yitong Xie Chaokui Qin Shuangqian Guo Zhiguang Chen |
| author_facet | Yitong Xie Chaokui Qin Shuangqian Guo Zhiguang Chen |
| author_sort | Yitong Xie |
| collection | DOAJ |
| description | Regenerative combustion technology has many advantages such as fuel saving, high combustion efficiency and low emission, and it has been widely used for large-scale furnaces. However, when regenerative combustion technology is adopted for small-scale furnaces, many technical problems occur. In this paper, a small-scale regenerative furnace with heat load of 70–80 kW and primary air coefficient of 1.00–1.60 was designed. It was found that the flame shifts from bright pale blue with faint rotating streamlines to yellowish transparent without apparent streamlines and to bright and transparent eventually. When main burners work stably, the temperature inside the furnace raises rapidly at first, and then the temperature increases steadily and fluctuates periodically. The highest temperature in the furnace can reach around 1300 °C. As the reversing time increases, the temperature fluctuation becomes more dramatically and the highest temperature is higher. NOx concentrations at all measurement points are below 50 ppm. Heat transfer efficiencies of each heat retainer show an increasing trend with the rise of the number of reversions. As reversing time increases, the heat transfer efficiency shows a decreasing trend. |
| first_indexed | 2024-04-10T23:45:56Z |
| format | Article |
| id | doaj.art-7b49d4fa82d6416e93e05b04d55e098d |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-10T23:45:56Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-7b49d4fa82d6416e93e05b04d55e098d2023-01-11T04:29:09ZengElsevierCase Studies in Thermal Engineering2214-157X2023-01-0141102613Experimental research of a small-scale industrial furnace with regenerative disc-flame burnersYitong Xie0Chaokui Qin1Shuangqian Guo2Zhiguang Chen3Gas Engineering Institute, School of Mechanical Engineering, Tongji University, Shanghai, PR ChinaGas Engineering Institute, School of Mechanical Engineering, Tongji University, Shanghai, PR China; Corresponding author.United Automotive Electronic Systems Corporation Ltd., Shanghai, PR ChinaGas Engineering Institute, School of Mechanical Engineering, Tongji University, Shanghai, PR ChinaRegenerative combustion technology has many advantages such as fuel saving, high combustion efficiency and low emission, and it has been widely used for large-scale furnaces. However, when regenerative combustion technology is adopted for small-scale furnaces, many technical problems occur. In this paper, a small-scale regenerative furnace with heat load of 70–80 kW and primary air coefficient of 1.00–1.60 was designed. It was found that the flame shifts from bright pale blue with faint rotating streamlines to yellowish transparent without apparent streamlines and to bright and transparent eventually. When main burners work stably, the temperature inside the furnace raises rapidly at first, and then the temperature increases steadily and fluctuates periodically. The highest temperature in the furnace can reach around 1300 °C. As the reversing time increases, the temperature fluctuation becomes more dramatically and the highest temperature is higher. NOx concentrations at all measurement points are below 50 ppm. Heat transfer efficiencies of each heat retainer show an increasing trend with the rise of the number of reversions. As reversing time increases, the heat transfer efficiency shows a decreasing trend.http://www.sciencedirect.com/science/article/pii/S2214157X22008504Disk-flameRegenerative combustionIndustrial furnaceHeat transferReversing time |
| spellingShingle | Yitong Xie Chaokui Qin Shuangqian Guo Zhiguang Chen Experimental research of a small-scale industrial furnace with regenerative disc-flame burners Case Studies in Thermal Engineering Disk-flame Regenerative combustion Industrial furnace Heat transfer Reversing time |
| title | Experimental research of a small-scale industrial furnace with regenerative disc-flame burners |
| title_full | Experimental research of a small-scale industrial furnace with regenerative disc-flame burners |
| title_fullStr | Experimental research of a small-scale industrial furnace with regenerative disc-flame burners |
| title_full_unstemmed | Experimental research of a small-scale industrial furnace with regenerative disc-flame burners |
| title_short | Experimental research of a small-scale industrial furnace with regenerative disc-flame burners |
| title_sort | experimental research of a small scale industrial furnace with regenerative disc flame burners |
| topic | Disk-flame Regenerative combustion Industrial furnace Heat transfer Reversing time |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22008504 |
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