Study on the characteristics of cooking fume fire based on fire dynamics simulation

2015 ◽  
pp. 915-919
Author(s):  
Zhengwen Xie ◽  
Zhengpei Jiang
Keyword(s):  
Dynamics Simulation ◽  
Fire Dynamics ◽  
Cooking Fume

scholarly journals Integrated IEW-TOPSIS and Fire Dynamics Simulation for Agent-Based Evacuation Modeling in Industrial Safety

Safety ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 47
Author(s):  
Wattana Chanthakhot ◽  
Kasin Ransikarbum
Keyword(s):  
Emergency Evacuation ◽  
Industrial Sector ◽  
Industrial Safety ◽  
Dynamics Simulation ◽  
Entropy Weight ◽  
Fire Dynamics ◽  
Evacuation Simulation ◽  
Evacuation Modeling ◽  
Agent Based ◽  
The Impact

Emergency events in the industrial sector have been increasingly reported during the past decade. However, studies that focus on emergency evacuation to improve industrial safety are still scarce. Existing evacuation-related studies also lack a perspective of fire assembly point’s analysis. In this research, location of assembly points is analyzed using the multi-criteria decision analysis (MCDA) technique based on the integrated information entropy weight (IEW) and techniques for order preference by similarity to ideal solution (TOPSIS) to support the fire evacuation plan. Next, we propose a novel simulation model that integrates fire dynamics simulation coupled with agent-based evacuation simulation to evaluate the impact of smoke and visibility from fire on evacuee behavior. Factors related to agent and building characteristics are examined for fire perception of evacuees, evacuees with physical disabilities, escape door width, fire location, and occupancy density. Then, the proposed model is applied to a case study of a home appliance factory in Chachoengsao, Thailand. Finally, results for the total evacuation time and the number of remaining occupants are statistically examined to suggest proper evacuation planning.

scholarly journals COUPLED SIMULATION FOR FIRE-EXPOSED STRUCTURES USING CFD AND THERMO-MECHANICAL MODELS

2017 ◽  
Vol 13 ◽  
pp. 121
Author(s):  
Stanislav Šulc ◽  
Vít Šmilauer ◽  
František Wald
Keyword(s):  
Fluid Dynamics ◽  
Temperature Field ◽  
Mechanical Model ◽  
Data Transfer ◽  
Thermal Strain ◽  
Dynamics Simulation ◽  
Coupled Simulation ◽  
Fire Dynamics ◽  
Mechanical Models ◽  
Fire Loading

Fire resistance of buildings is based on fire tests in furnaces with gas burners. However, the tests are very expensive and time consuming. This article presents a coupled simulation of an element loaded by a force and a fire loading. The simulation solves a weakly-coupled problem, consisting of fluid dynamics, heat transfer and mechanical model. The temperature field from the computational fluid dynamics simulation (CFD) creates Cauchy and radiative boundary conditions for the thermal model. Then, the temperature field from element is passed to the mechanical model, which induces thermal strain and modifies material parameters. The fluid dynamics is computed with Fire Dynamics Simulator and the thermo-mechanical task is solved in OOFEM. Both softwares are interconnected with MuPIF python library, which allows smooth data transfer across the different meshes, orchestrating simulations in particular codes, exporting results to the VTK formats and distributed computing.

Simulation and Analysis on Mechanical Strength of Reinforced Concrete Beam Undergoing a Fire

2013 ◽  
Vol 647 ◽  
pp. 809-813
Author(s):  
Cherng Shing Lin ◽  
Te Chi Chen ◽  
Chia Chun Yu ◽  
Shih Cheng Wang
Keyword(s):  
Reinforced Concrete ◽  
Structural Strength ◽  
Reinforced Concrete Beam ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Structural Safety ◽  
Thermal Flow ◽  
Fire Dynamics ◽  
Design Strength ◽  
Common Structure

Reinforced concrete is a common structure in buildings in Taiwan. Steel bars, concrete materials and the structural strength of the reinforced concrete deteriorate due to high temperature deriving from a fire. Therefore, it is essential to assess its structural safety and analyze whether the architectural structure will remain its design strength undergoing a fire. This study employs Fire Dynamics Simulation (FDS), fire simulation software, to construct model of thermal flow field. By integrating FDS with PHOENICS, thermal flow software, this study also calculates the effect of the fire’s thermal transmission on the building, investigates the effect of the fire size and the mode the beam undergoing a fire on change of the structural strength, and provides quantified data for safety assessment for buildings which have undergone fires.

Reliability of the FDS Simulating on Fire Extinguishing with Straight Stream of Compressed AFFF

2014 ◽  
Vol 644-650 ◽  
pp. 4876-4879
Author(s):  
Lin Su ◽  
Li Jing Wang ◽  
Lin Xue
Keyword(s):  
Direct Injection ◽  
Diesel Oil ◽  
Simulation Software ◽  
Compressed Air ◽  
Dynamics Simulation ◽  
Fire Dynamics ◽  
Fire Extinguishing ◽  
Actual Fire

By utilizing the fire dynamics simulation software FDS, simulate the fire extinguishing process of the diesel oil fire and gasoline fire with the compressed air foam agent, and compare it with the actual fire extinguishing test. Verify the reliability and the accuracy of the simulation implemented by FDS software on compressed air foam agent fire extinguishing process under the direct injection.

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