scholarly journals CFD Simulation of Flame Manikin Test for Fire Proof Garment during Flash Fire Exposures and Cooling Phase

2015 ◽  
Author(s):  
Zhaoli Wang ◽  
Jun Li ◽  
Miao Tian
Keyword(s):  
Cfd Simulation ◽  
Flash Fire ◽  
Cooling Phase

scholarly journals Numerical studies on an accidental flashfire at a water fun park by FLACS software

2021 ◽  
pp. 304-304
Author(s):  
Hsin-Hsiu Ho ◽  
San-Ping Ho ◽  
Chin-Feng Chen ◽  
Hui-Pei Chang ◽  
Bin Xie ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Open Space ◽  
Cfd Simulation ◽  
Environmental Parameters ◽  
Solid Boundary ◽  
Flame Acceleration ◽  
Flash Fire ◽  
Fire Scenarios ◽  
Simulation Results ◽  
Fire Scene

A severe accidental fire with ?explosion? resulting from spraying coloured corn flour powder occurred at a water fun park in Taiwan. The possible fire scenarios were studied in this paper using Flame Acceleration Simulator(FLACS). Environmental conditions including wind action and solid boundary conditions were deduced based on government fire investigation and video records, and were used as the input parameters in simulation. Simulation results indicate that upon ignition of the sprayed powder, the maximum overpressure in the open space was only 0.03 bar gauge, with a dust flash fire generated without having an explosion. These environmental conditions or parameters and the simulation results together would give a fire scene that agrees with the accident observed, indicating that appropriate environmental parameters had been identified. Therefore, CFD simulation with carefully selected parameters can be used to reproduce explosion scenarios and to identify key factors in supporting accident investigations.

Technical textiles for protection against Arc-flash fire: Savesplash®

2020 ◽  
pp. 67-78
Author(s):  
Nandan Kumar ◽  
Sainath Shrikant Pawaskar
Keyword(s):  
Attenuation Factor ◽  
Threshold Energy ◽  
Single Layer ◽  
Weather Conditions ◽  
Electric Arc ◽  
Risk Category ◽  
Technical Textiles ◽  
Flash Fire ◽  
Level 3 ◽  
Arc Flash

Flash fire caused by electric arc is different than that caused by flammable liquids/fumes or combustible dusts. A suitable protective clothing for protection against electric arc-flash must be designed as per Indian weather conditions. Currently available garments are manufactured using two or three layers of woven/nonwoven combinations to achieve higher Hazard Risk Category (HRC) rating (level 3 and above). However, they are heavy and not comfortable to the end users. Savesplash® is a single layer inherent flame-retardant knitted fabric. Its arc rating was determined using ASTM standards. It achieved arc thermal performance value (ATPV) of 41 cal/cm2, breakopen threshold energy (E_BT) of 42 cal/cm2 and heat attenuation factor (HAF) of 94% when tested as per ASTM F1959/F1959M-14 which translated into an arc rating of 41 cal/cm2. This is equivalent to HRC level 4 ratings as per National Fire Protection Association’s NFPA 70E standard (USA). Further, cut and sewn gloves (HM-100) developed using Savesplash® fabric reinforced with leather on palm area achieved ATPV of 63 cal/cm2 and HAF of 94.5% when tested as per ASTM F2675/F2675M-13.

Sign in / Sign up

Export Citation Format

Share Document