Establishing a fire source during the inspection of the scene of an incident associated with a criminal fire

2021 ◽  
Vol 9 (160) ◽  
Author(s):  
A.A. FAYZULLINA ◽  
Keyword(s):  
Fire Source ◽  
Inspection Of The Scene

scholarly journals Experimental Study on Fire Sources for Full-Scale Fire Testing of Simple Sprinkler Systems Installed in Multiplexes

Fire ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 8
Author(s):  
Jeonghwa Park ◽  
Jihyun Kwark
Keyword(s):  
Large Scale ◽  
Fire Suppression ◽  
National Fire Protection Association ◽  
Control Performance ◽  
Fire Testing ◽  
Fire Control ◽  
Wood Crib ◽  
Fire Source ◽  
Sprinkler Systems ◽  
Cotton Wick

Fires are accidents that can cause numerous human casualties in multiplexes. The simple sprinkler systems applied in South Korea employ sprinklers to protect people against residential fires, as specified by the National Fire Protection Association (NFPA) standard 13D. Therefore, it is necessary to evaluate the fire control performance of multiplexes, which are at a greater risk than residential facilities. This study aims to verify the fire control performance of simple sprinklers in multiplexes and to develop a fire source that can be used as a protocol for testing fire suppression methods. The fire source was evaluated by using a 3 MW large-scale calorimeter (ISO 13784). The proposed fire source for multiplexes was applied in various forms according to the application methods, with ignition sources including cotton wick, wood crib, and heptane, and then the fire tests were conducted.

GENERAL INFORMATION ABOUT THE STRUCTURE OF HUMAN SKIN

2017 ◽  
Author(s):  
Tetiana Yurchyk ◽  
◽  
Tetiana Sukhomlin ◽  
Keyword(s):  
Physical Properties ◽  
Human Skin ◽  
Chemical Exposure ◽  
General Information ◽  
General Rules ◽  
The Future ◽  
Fatty Substance ◽  
Multicomponent Nature ◽  
Inspection Of The Scene

The success of handprints examined by experts depends on many factors, the main of which is the receipt of dactyloscopic information by qualified detection, fixation and removal of handprints during the inspection of the scene. To do this, the future expert needs knowledge about the mechanism of papillary patterns, types of handprints, general rules for their detection, and so on. The fact is that the multicomponent nature of the fatty substance creates ample opportunities for the detection of handprints and provides many potential opportunities for chemical exposure. In addition, the substrate of the fatty substance has some physical properties that can be used in the process of visualization of traces.

Numerical Analysis of Fire Behavior of a Large Space Pre-Stressed Steel Structure under Fire

2011 ◽  
Vol 71-78 ◽  
pp. 3729-3732
Author(s):  
Ming Zhou ◽  
Zhi Guo Xie ◽  
Xin Tang Wang
Keyword(s):  
Numerical Analysis ◽  
Fire Behavior ◽  
Thermal Response ◽  
Structural Response ◽  
Steel Structure ◽  
Large Space ◽  
Fire Source ◽  
Lattice Shell ◽  
In Fire ◽  
Influence Degree

The computational model of numerical analysis of a suspended pre-stressed steel reticulated shell subjected to fire load is established with using the software Marc. Based on the model presented here, numerical analysis of thermal response and structural response of the pre-stressed steel structure are computed. The different space height and different rise-span ratio are considered for analysis of response temperature, displacements and stresses of the pre-stressed lattice shell under fire for one fire source. It is also shown that displacement of the node right above the inner cable is the maximum among the four nodes presented here as the fire source is located at the position right below the second-ring cable of the structure. It is concluded that the influence degree of space height of the structure on the fire response of the structure is not great, but rise-span ratio has obvious and great effect on displacements and stresses of the pre-stressed steel structure with large span in fire.

The Experimental Study on the Fire Suppression Effectiveness of Water Mist with the FeCl2 Additives

2013 ◽  
Vol 790 ◽  
pp. 53-56
Author(s):  
Chen Jian ◽  
Xu Yan Ying ◽  
Wang Na
Keyword(s):  
Experimental Study ◽  
Fire Suppression ◽  
Water Mist ◽  
Experimental Results ◽  
Additive Concentration ◽  
Experimental Conditions ◽  
Fire Source ◽  
Fire Extinguishing ◽  
Nozzle Position

This paper presents an experimental study of fire suppression effectiveness with water mist containing FeCl2 additives.The investigation focuses on suppression effectiveness under various FeCl2 additives concentrations,working pressures and nozzle different height above the fire source . The experimental results show that: there is a significant impact on fire suppression effectiveness when adding FeCl2 to water mist. There is an optimum additive concentration of extinguishing fire, corresponding to the shortest extinguishing time, the least amount of water, the highest efficiency of extinguishing fire. The nozzle working pressures and nozzle position have effect on the performance of the water mist extinguishing: the greater the pressure is, the shorter water mist fire extinguishing time is. Under the same experimental conditions, the closer the water mist nozzles are to the oil pan, the shorter extinguishing time is.

scholarly journals PROPERTIES OF PLUME AND NEAR FIRE SOURCE IN HORIZONTALLY LONG AND NARROW SPACES

2001 ◽  
Vol 66 (546) ◽  
pp. 151-156 ◽  
Author(s):  
Hitoshi KURIOKA ◽  
Yasushi OKA ◽  
Hiroomi SATOH ◽  
Hideaki KUWANA ◽  
Osami SUGAWA
Keyword(s):  
Fire Source

An Experimental Study on the Mass Flow Rate from a Line Fire Source Along a Vertical Wall

2016 ◽  
pp. 437-444
Author(s):  
Yusuke Shintani ◽  
Tsutomu Nagaoka ◽  
Yoshikazu Deguchi ◽  
Kazunori Harada
Keyword(s):  
Experimental Study ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Vertical Wall ◽  
Fire Source
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