A modified thermal radiation model with multiple factors for investigating temperature rise around pool fire

2019 ◽  
Vol 379 ◽  
pp. 120801 ◽  
Author(s):  
Congling Shi ◽  
Wei Liu ◽  
Wenjie Hong ◽  
Maohua Zhong ◽  
Xingkai Zhang
Keyword(s):  
Thermal Radiation ◽  
Temperature Rise ◽  
Pool Fire ◽  
Radiation Model ◽  
Multiple Factors

A Multi-Point Source Thermal Radiation Model of Pool Fire

2013 ◽  
Vol 380-384 ◽  
pp. 1685-1688
Author(s):  
Jian Feng Zhou
Keyword(s):  
Monte Carlo ◽  
Thermal Radiation ◽  
Point Source ◽  
Particle System ◽  
Source Model ◽  
Measured Data ◽  
Pool Fire ◽  
Radiation Model ◽  
Study Case ◽  
Thermal Sources

The hazard of pool fire is mainly thermal radiation damage. In this paper, a multi-point source model of pool fire thermal radiation is proposed. The thermal sources are the particles constituting the flame which is established by incorporating particle system with Monte Carlo method. A study case of gasoline pool fire is simulated by this model, and the radiation results evaluated by this model are compared with those evaluated by the traditional point source model and the measured data.

Analysis of Thermal Radiation Models for Large Open Pool Fire on Ship Deck

2013 ◽  
Vol 470 ◽  
pp. 259-262
Author(s):  
Li Bin Ding ◽  
Jin Yun Pu ◽  
Kai Ren
Keyword(s):  
Heat Flux ◽  
Thermal Radiation ◽  
Point Source ◽  
Engineering Design ◽  
Source Model ◽  
Heat Fluxes ◽  
Pool Fire

Three radiation models are discussed in the present paper. The heat fluxes vary considerably between different methods. In all models, fluxes vary highly on the position of nearing the flame and are almost identical on the far away position. Heat fluxes calculated from point source model is less than other two models, and Shokri-Beyler model is highest. Shokri-Beyler method is most applicable at heat fluxes greater than 5 KW/m2 and recommended in engineering design, and Mudan model is not applicable for calculating the heat flux nearing the flame.

A Model Considering the Flame Volume for Prediction of Thermal Radiation from Pool Fire

2018 ◽  
Vol 55 (1) ◽  
pp. 129-148 ◽  
Author(s):  
Gansu Shen ◽  
Kuibin Zhou ◽  
Fan Wu ◽  
Juncheng Jiang ◽  
Zhan Dou
Keyword(s):  
Thermal Radiation ◽  
Pool Fire

Above Ground Petroleum Product Storage Tank Fires: A Numerical Analysis of Thermal Radiation for Developing Fire Prevention Strategy

2014 ◽  
Author(s):  
Wenxing Feng ◽  
Chaopeng Wu ◽  
Shuxin Li ◽  
Xiaodong Long ◽  
Jingjun Xi
Keyword(s):  
Thermal Radiation ◽  
Radiation Exposure ◽  
Petroleum Product ◽  
Pool Fire ◽  
Fire Prevention ◽  
Pipeline System ◽  
Pipeline Transportation ◽  
Oil Pipeline ◽  
Radiation Distribution ◽  
Product Storage

Above ground petroleum product storage tanks are tanks or other containers that are above ground, partially buried, bunkered, or in a subterranean vault. These are built to store petroleum product for pipeline system, oilfield and refinery. Tank fires are one of the most terrible accidents in oil pipeline transportation stations. Tank fires pose a significant hazard to people, buildings, process piping, the environment and other facilities as a result of thermal radiation exposure. It is necessary and meaningful to study the distribution of the thermal radiation of a tank fire for emergency response, prevention and reducing loss. To analyze potential tank fire incidents at a pipeline station, a three-dimensional station model was built using a computational fluid dynamics (Abbreviated as CFD, is a branch of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows) software package to evaluate the thermal radiation distribution under different conditions. Numerical simulations were carried out for a total of six simulation scenarios to analyze 3 types of potential fires for 2 different liquid products (gasoline and diesel). The three kinds of fires that were modeled included: 1) disk pool fire on top of the tank; 2) ring pool fire on the top of a tank; and 3) pool fire in a dike. The simulation evaluates the effect of the thermal radiation on facilities and people. The simulation results show that the water cooling system is effective at decreasing the magnitude of thermal radiation exposure and as a result is effective at protecting nearby tanks and facilities. Without water protection, the disk fire or ring fire can destroy or damage nearby structures significantly. The results of the simulation also show that the dike pool fire can have a catastrophic consequence to nearby facilities. Further the analysis showed that environmental wind does not change the thermal radiation distribution significantly. The results of the simulation point out countermeasure activities to enhance fire prevention at oil pipeline transportation stations in a scientific way.

Thermal radiation model for solid rocket booster plumes

1977 ◽  
Vol 14 (11) ◽  
pp. 641-647 ◽  
Author(s):  
G. H. Watson ◽  
A. L. Lee
Keyword(s):  
Thermal Radiation ◽  
Radiation Model ◽  
Solid Rocket

scholarly journals Calculation of Thermal Radiation Level During a Pool Fire Caused by Leakage of Kerosene from Tanker Wagon at Railway Crossings

2018 ◽  
Vol 13 (1) ◽  
pp. 29-36
Author(s):  
Nikola Mišić ◽  
Darko Zigar ◽  
Aca Božilov ◽  
Dušica Pešić
Keyword(s):  
Thermal Radiation ◽  
Hazardous Materials ◽  
Pool Fire ◽  
Radiation Level

Abstract The spillages due to collisions related incidents involving the wagon tankers, which carrying hazardous materials (hazmat), can be followed by fires or explosions, presents a severe threat to the safety of residents and nearby buildings. In this study, ALOHA and PHAST was used to evaluate the level of thermal radiation at different distances from the place of accident. Discussed scenario analyze a leakage of kerosene from a tanker wagon, from different opening diameters, where is formed a pool fire. As an assumption for location of possible accident, parts of the railway where it can be expected a large number of people and vehicles were taken. For study area was chosen city of Niš, Serbia.

scholarly journals Thermal radiation model for dynamic fireballs with shadowing

2019 ◽  
Vol 128 ◽  
pp. 372-384
Author(s):  
J.M. Bonilla ◽  
A. Àgueda ◽  
M.A. Muñoz ◽  
J.A. Vílchez ◽  
E. Planas
Keyword(s):  
Thermal Radiation ◽  
Radiation Model

scholarly journals Bistable fully developed mixed convection flow with viscous dissipation in a vertical channel

2018 ◽  
Vol 5 (7) ◽  
pp. 171880
Author(s):  
M. Miklavčič
Keyword(s):  
Mixed Convection ◽  
Thermal Radiation ◽  
Pressure Gradient ◽  
Viscous Dissipation ◽  
Vertical Channel ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Radiation Model ◽  
Stable Solutions ◽  
Stable Flow

It is shown that unstable dual solutions in fully developed mixed convection flow in a vertical channel disappear in the presence of relatively strong thermal radiation. In this case, we have a unique stable flow at each pressure gradient. When the effect of thermal radiation is weak another branch of stable solutions is created, resulting in bistable flows. In this case, the flow exhibits hysteresis with variation of the pressure gradient. Optically, a thin radiation model is used.

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