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Experimental study on the burning rate and flame dynamics of oil reservoir pool fire under cross-wind : Effect of lip height

Deng, Lei LU ; Shi, Congling ; Mcnamee, Margaret LU and Tang, Fei (2024) In Energy 310.
Abstract

The study of combustion characteristics and heat feedback mechanisms of liquid fuels is important for fire safety engineering, particularly in the context of energy utilization. In thiswork, the effect of lip height on the evolution of n-heptane pool fire burning rates and flame heights, as well as the thermal feedback control mechanism, were investigated in a series of experiments in the presence of cross-wind. The results showed that the lip height of pool and cross-wind speed have a significant effect on the flame characteristics and heat feedback mechanism. For a given wind speed condition, the radiative feedback fraction and the convective feedback fraction showed non-monotonic changes with an increase in the lip height of pool.... (More)

The study of combustion characteristics and heat feedback mechanisms of liquid fuels is important for fire safety engineering, particularly in the context of energy utilization. In thiswork, the effect of lip height on the evolution of n-heptane pool fire burning rates and flame heights, as well as the thermal feedback control mechanism, were investigated in a series of experiments in the presence of cross-wind. The results showed that the lip height of pool and cross-wind speed have a significant effect on the flame characteristics and heat feedback mechanism. For a given wind speed condition, the radiative feedback fraction and the convective feedback fraction showed non-monotonic changes with an increase in the lip height of pool. With the increase of lip height and cross-wind speed, the lift off phenomenon gradually appeared inside the oil pool, while the flame height outside the oil pool gradually decreased. A new correlation is proposed, which can well describle the relationship between the flame height and the ratio of the air entrainment caused by the cross airflow to that caused by the flame buoyancy, which can provide references for the utilization and management of energy storage strategies nowadays.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cross wind, Flame height, Heat feedback, Lip height, Oil reservoir pool fire
in
Energy
volume
310
article number
133282
publisher
Elsevier
external identifiers
  • scopus:85205315043
ISSN
0360-5442
DOI
10.1016/j.energy.2024.133282
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2024 Elsevier Ltd
id
5f495220-8e48-4dce-9e61-fdbf7a4ec297
date added to LUP
2024-11-27 14:36:17
date last changed
2024-11-29 13:22:26
@article{5f495220-8e48-4dce-9e61-fdbf7a4ec297,
  abstract     = {{<p>The study of combustion characteristics and heat feedback mechanisms of liquid fuels is important for fire safety engineering, particularly in the context of energy utilization. In thiswork, the effect of lip height on the evolution of n-heptane pool fire burning rates and flame heights, as well as the thermal feedback control mechanism, were investigated in a series of experiments in the presence of cross-wind. The results showed that the lip height of pool and cross-wind speed have a significant effect on the flame characteristics and heat feedback mechanism. For a given wind speed condition, the radiative feedback fraction and the convective feedback fraction showed non-monotonic changes with an increase in the lip height of pool. With the increase of lip height and cross-wind speed, the lift off phenomenon gradually appeared inside the oil pool, while the flame height outside the oil pool gradually decreased. A new correlation is proposed, which can well describle the relationship between the flame height and the ratio of the air entrainment caused by the cross airflow to that caused by the flame buoyancy, which can provide references for the utilization and management of energy storage strategies nowadays.</p>}},
  author       = {{Deng, Lei and Shi, Congling and Mcnamee, Margaret and Tang, Fei}},
  issn         = {{0360-5442}},
  keywords     = {{Cross wind; Flame height; Heat feedback; Lip height; Oil reservoir pool fire}},
  language     = {{eng}},
  month        = {{11}},
  publisher    = {{Elsevier}},
  series       = {{Energy}},
  title        = {{Experimental study on the burning rate and flame dynamics of oil reservoir pool fire under cross-wind : Effect of lip height}},
  url          = {{http://dx.doi.org/10.1016/j.energy.2024.133282}},
  doi          = {{10.1016/j.energy.2024.133282}},
  volume       = {{310}},
  year         = {{2024}},
}