نتایج جستجو برای: fire extinguishing system

تعداد نتایج: 2266608  

1999
Robert Friedman

Research in microgravity (low-gravity) combustion promises innovations and improvements in fire prevention and response for human-crew spacecraft. Findings indicate that material flammability and fire spread in microgravity are significantly affected by atmospheric flow rate, oxygen concentration, and diluent composition. This information can lead to modifications and correlations to standard m...

2011
M.P.Sivaram Kumar

Forests are rich containment of resources and they play a vital role in preserving and maintaining the environment. The major hazard of the forests is forest fire as the consequence of the forest fire is catastrophic in nature. Hence it is of great importance that forest fire occurrence must be detected and extinguished before the fire spreads and destroys the resources. A lot of detection mech...

2012
M. Abbaspour D. Mansouri N. Mansouri

There are reports of gas and oil wells fire due to different accidents. Many different methods are used for fire fighting in gas and oil industry. Traditional fire extinguishing techniques are mostly faced with many problems and are usually time consuming and needs lots of equipments. Besides, they cause damages to facilities, and create health and environmental problems. This article proposes ...

2006
N. Zhu

Water mist fire suppression system (WMFSS) is one of the candidates in substituting the Halogen-based total flooding system. The system with strong spray momentum gives a satisfactory performance in extinguishing solid fires, liquid fires as well as kitchen fires under no ventilation. Nozzle with high discharge momentum and low operating pressure are the goal. Water mist discharged is assumed t...

2003
R. L. Carpenter E. C. Kimmel E. A. Smith

The physical and chemical properties of an aerosol have a direct influence upon fire suppression mechanisms and extinguishing efficacy. These same properties are also basic determinants of aerosol inhalation toxicity. To evaluate the toxicity of an aerosol, it must first be determined if the aerosol can be inspired. Particles with a median aerodynamic diameter of 1-2 pm are capable ofpenetratin...

Journal: :Mathematics 2023

Fire accidents occur in every part of the world and cause a large number casualties because risks involved manually extinguishing fire. In most cases, humans cannot detect extinguish fire manually. robots with sophisticated functionalities are being rapidly developed nowadays, these systems use sensors detectors. However, they lack mechanisms for early detection fire, case casualties. To preven...

Journal: :International Journal of Multiphase Flow 2021

Zonal modeling is a common technique for the numerical certification of fire-extinguishing systems, however it not valid to simulate complex physical phenomena that occurs near agent injection. We present multi-scale method accurate generation inflow boundary conditions zonal based on description phase change rapidly depressurised mist fire suppression system. The includes characterization inje...

Journal: :JAPANESE JOURNAL OF MULTIPHASE FLOW 2013

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