Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS
Soot formation process during coal combustion is one of a key phenomenon to achieve a high-performance furnace. This is because the thermal radiation of soot influences the temperature distribution and the heat transfer process in the furnaces. In this study, polycyclic aromatic hydrocarbons (PAHs)...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2021-05-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00422/_pdf/-char/en |
| _version_ | 1797989050527776768 |
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| author | Shinya SAWADA Daisuke OKADA Noriaki NAKATSUKA Kazuki TAINAKA Tsukasa HORI Jun HAYASHI Fumiteru AKAMATSU |
| author_facet | Shinya SAWADA Daisuke OKADA Noriaki NAKATSUKA Kazuki TAINAKA Tsukasa HORI Jun HAYASHI Fumiteru AKAMATSU |
| author_sort | Shinya SAWADA |
| collection | DOAJ |
| description | Soot formation process during coal combustion is one of a key phenomenon to achieve a high-performance furnace. This is because the thermal radiation of soot influences the temperature distribution and the heat transfer process in the furnaces. In this study, polycyclic aromatic hydrocarbons (PAHs) and soot were visualized by a 10 kHz planar laser induced fluorescence (PLIF), laser induced incandescence (LII) and laser induced scattering (LIS) to investigate the soot formation processes in the volatile flame of single pulverized coal particle combustion. In addition, the magnified high-speed imaging was conducted to capture the combustion behavior of the single coal particle. Pulverized coal particles entered high temperature region formed by hydrogen/air diffusion flame in the counterflow. Results showed that five typical combustion behaviors were observed by magnified high-speed imaging. This paper succeeded in visualizing the process from the release of volatile matter to soot formation of single pulverized coal particles with high-speed PAHs-PLIF, LII and LIS measurements. The results showed that the size of PAHs and soot areas was similar, but the duration of PAHs was longer than soot. Also, the PAHs signal was locally high, suggesting that PAHs were directly released from pulverized coal. |
| first_indexed | 2024-04-11T08:14:05Z |
| format | Article |
| id | doaj.art-c14acd6bfcd14311a64916e1db989be7 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:14:05Z |
| publishDate | 2021-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-c14acd6bfcd14311a64916e1db989be72022-12-22T04:35:15ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612021-05-018789820-0042220-0042210.1299/transjsme.20-00422transjsmeVisualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LISShinya SAWADA0Daisuke OKADA1Noriaki NAKATSUKA2Kazuki TAINAKA3Tsukasa HORI4Jun HAYASHI5Fumiteru AKAMATSU6Combustion Engineering Laboratory. Osaka UniversityCombustion Engineering Laboratory. Osaka UniversityCombustion Engineering Laboratory. Osaka UniversityEnergy Engineering Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI)Combustion Engineering Laboratory. Osaka UniversityDepartment of Energy Conversion Science, Kyoto UniversityCombustion Engineering Laboratory. Osaka UniversitySoot formation process during coal combustion is one of a key phenomenon to achieve a high-performance furnace. This is because the thermal radiation of soot influences the temperature distribution and the heat transfer process in the furnaces. In this study, polycyclic aromatic hydrocarbons (PAHs) and soot were visualized by a 10 kHz planar laser induced fluorescence (PLIF), laser induced incandescence (LII) and laser induced scattering (LIS) to investigate the soot formation processes in the volatile flame of single pulverized coal particle combustion. In addition, the magnified high-speed imaging was conducted to capture the combustion behavior of the single coal particle. Pulverized coal particles entered high temperature region formed by hydrogen/air diffusion flame in the counterflow. Results showed that five typical combustion behaviors were observed by magnified high-speed imaging. This paper succeeded in visualizing the process from the release of volatile matter to soot formation of single pulverized coal particles with high-speed PAHs-PLIF, LII and LIS measurements. The results showed that the size of PAHs and soot areas was similar, but the duration of PAHs was longer than soot. Also, the PAHs signal was locally high, suggesting that PAHs were directly released from pulverized coal.https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00422/_pdf/-char/enlaser induced fluorescence of pahslaser induced incandescencepulverized coalsoot formation |
| spellingShingle | Shinya SAWADA Daisuke OKADA Noriaki NAKATSUKA Kazuki TAINAKA Tsukasa HORI Jun HAYASHI Fumiteru AKAMATSU Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS Nihon Kikai Gakkai ronbunshu laser induced fluorescence of pahs laser induced incandescence pulverized coal soot formation |
| title | Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS |
| title_full | Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS |
| title_fullStr | Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS |
| title_full_unstemmed | Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS |
| title_short | Visualization of the soot formation process in the volatile flame of single coal particle using 10-kHz PAHs-PLIF, LII and LIS |
| title_sort | visualization of the soot formation process in the volatile flame of single coal particle using 10 khz pahs plif lii and lis |
| topic | laser induced fluorescence of pahs laser induced incandescence pulverized coal soot formation |
| url | https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00422/_pdf/-char/en |
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