نتایج جستجو برای: fire extinguishing system

تعداد نتایج: 2266608  

Journal: :Applied sciences 2022

Acoustic flame suppression is a potential technology which does away with the need to carry fire-extinguishing media and not cause secondary pollution. We herein reported an experimental study on displacement extinction of jet diffusion flames exposed speaker-generated traveling sound waves frequency 110–150 Hz local pressure 2–16 Pa. The simultaneous movement fuel was captured using high-speed...

Journal: :Journal of artificial intelligence practice 2023

As an important means of fire prevention, risk detection and early warning can timely alarm in the stage spread, strive for golden time extinguishing personnel, have value reducing loss life property caused by fire. Nowadays, technology has developed to robot. With flexibility intelligence robot, accuracy will be further improved, probability false reduced, so as promote improvement safety mana...

2002
S. Liodakis D. Bakirtzis E. Lois D. Gakis

The spontaneous ignitability of Pinus halepensis pine needles was evaluated. Fire points and times taken for irradiated fuels to be ignited were correlated, at given heat intensity, to the airflow around the specimen and the sample size. The tests showed that increase of the airflow rate above 1.5 lmin 1 increased considerably the fire point values and ignition delay times. On the contrary, the...

Journal: :Buildings 2023

In this paper, to reflect a real fire combustion situation of stilted buildings with typical wooden structure, we used FDS numerical simulation software study the suppression effect fine-water-mist fire-extinguishing system under different working conditions. The influences mist droplet diameters, spray flows, and nozzle densities on temperature change in area were analyzed compared. particle s...

حسین زاده, طاهر , شیرالی , غلامعباس , کرمی, اسماعیل , گودرزی, زهرا ,

Introduction: The weaknesses of traditional hazard analysis methods lead to their inefficiency to utilization for modern socio-technical systems. System Theoretic Process Analysis (STPA), which is in the category of systematic analysis methods, has a powerful logic to identify hazards in such systems,as a suitable alternative method. This study aimed to analyze hazards associated with extinguis...

2013
I. Bronstein

A new lightweight gas-particle mixture generator for fire-extinguishing purposes is designed such as to keep the generator and aerosol temperatures low by including a Phase Change Materials (PCM) component. The new generator performances have been studied experimentally and compared to the corresponding performances of a traditional design. The temperature evolution profiles of this gas-particl...

Journal: :Fire Science and Engineering 2021

In this study, the authors developed a fire safety management system model for critical risk factor assessment in construction sites according to National Fire Protection Association code Safety Concepts Tree (FSCT). First, statistics and heavy casualties were analyzed, factors as associated with key causes of incident break out life-threatening damages derived. Furthermore, related laws regula...

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