Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires
Summary The ring fire usually originates from the combustion of the annular‐distributed fuel, and it may occur in the low‐temperature environments such as the Arctic area and plateau area, which is kind of different from the conventional environment. In this paper, the annular pools with various sha...
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crwiley:10.1002/fam.2827 2024-06-02T08:02:21+00:00 Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires Li, Cong Yang, Rui Li, Chengwu Zhang, Hui Fundamental Research Funds for the Central Universities National Natural Science Foundation of China 2020 http://dx.doi.org/10.1002/fam.2827 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Ffam.2827 https://onlinelibrary.wiley.com/doi/pdf/10.1002/fam.2827 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/fam.2827 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fire and Materials volume 44, issue 5, page 640-647 ISSN 0308-0501 1099-1018 journal-article 2020 crwiley https://doi.org/10.1002/fam.2827 2024-05-03T11:26:57Z Summary The ring fire usually originates from the combustion of the annular‐distributed fuel, and it may occur in the low‐temperature environments such as the Arctic area and plateau area, which is kind of different from the conventional environment. In this paper, the annular pools with various shape characteristics were designed. The outside diameter ranged from 14.9 to 30.0 cm, the inside diameter increased from 0 to 24.5 cm, and the diameter ratio was from 0 to 0.858. A series of n‐heptane ring fire experiments were carried out. The results showed that for the annular pools with the same outside diameter, the mass loss rate (MLR) per unit area presents a piecewise trend with the diameter ratio. When the diameter ratio increases from 0 to 0.7, the MLR per unit area increases linearly because of the domination of air entrainment effect. When the diameter ratio is larger than 0.7, the MLR per unit area is independent of the annular shape due to the strong heat dissipation effect. Finally, a parameter named the outside circumference per unit area is put forward to characterize the annular pool. A corrected pressure modeling is established to normalize the ring fire with various shape characteristics. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Fire and Materials 44 5 640 647 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary The ring fire usually originates from the combustion of the annular‐distributed fuel, and it may occur in the low‐temperature environments such as the Arctic area and plateau area, which is kind of different from the conventional environment. In this paper, the annular pools with various shape characteristics were designed. The outside diameter ranged from 14.9 to 30.0 cm, the inside diameter increased from 0 to 24.5 cm, and the diameter ratio was from 0 to 0.858. A series of n‐heptane ring fire experiments were carried out. The results showed that for the annular pools with the same outside diameter, the mass loss rate (MLR) per unit area presents a piecewise trend with the diameter ratio. When the diameter ratio increases from 0 to 0.7, the MLR per unit area increases linearly because of the domination of air entrainment effect. When the diameter ratio is larger than 0.7, the MLR per unit area is independent of the annular shape due to the strong heat dissipation effect. Finally, a parameter named the outside circumference per unit area is put forward to characterize the annular pool. A corrected pressure modeling is established to normalize the ring fire with various shape characteristics. |
author2 |
Fundamental Research Funds for the Central Universities National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Li, Cong Yang, Rui Li, Chengwu Zhang, Hui |
spellingShingle |
Li, Cong Yang, Rui Li, Chengwu Zhang, Hui Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
author_facet |
Li, Cong Yang, Rui Li, Chengwu Zhang, Hui |
author_sort |
Li, Cong |
title |
Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
title_short |
Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
title_full |
Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
title_fullStr |
Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
title_full_unstemmed |
Experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
title_sort |
experimental investigation on the influence of annular pool shape characteristics on n‐heptane ring fires |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/fam.2827 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Ffam.2827 https://onlinelibrary.wiley.com/doi/pdf/10.1002/fam.2827 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/fam.2827 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Fire and Materials volume 44, issue 5, page 640-647 ISSN 0308-0501 1099-1018 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/fam.2827 |
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Fire and Materials |
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44 |
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5 |
container_start_page |
640 |
op_container_end_page |
647 |
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1800746857116205056 |