The paper “ Means of Escape from Fire” is an actual example of the assignment on management. When the density increases, the number of people within a given compartment increases. Since the egress is designed to support a specific number of people; the increase in the number of people reduces mobility. Thus, an increase in density will decrease the number of people who will be evacuated while the decrease in density will increase the number of people who will be evacuated (Diamantes 2004). Stages of Fire DevelopmentFires that are in the compartment are usually discussed in terms of temperature development resulting in a number of stages.
These stages are five, which include ignition, growth, flashover, fully developed fire, and decay. Ignition – this is the time that there is an exothermic reaction due to an increase of temperature and in can be caused by either spontaneous ignition or piloted ignition. The resulting combustion will be either smoldering combustion or flaming combustion. Growth – after ignition the fire can either grow fast or slow but the rate is dependent on the type of fuel, type of combustion, access to oxygen, and surrounding interactions.
A smoldering fire releases low energy while produces hazardous amounts of toxic gases while flaming combustion results in the rapid flame that spreads over its surfaces e. g. fuel packages; those fires that access sufficient oxygen are said to be fuel controlled. Flashover – this is the transition period between growth and developing stage. This stage may be viewed in terms of temperature; the temperature should be between 500 and 600 degrees centigrade or the flames appear from the enclosing of the compartment.
Such occurrences may be attributed to fuel position, conditions in the upper layer, fuel orientation, fuel properties, and enclosure geometry. Fully Developed Fire – this is the time that the fire is at its greatest and may be attributed to factors such as limited availability of oxygen. This stage may also be called as ventilation controlled burning since the oxygen that is required for the burning process comes from the openings of the compartments. At this stage, the temperatures usually range from 700 to 1200 degrees Celsius (Gipson 2003).
Belington, M. & Ferguson, A., 2002, Means of Escape from Fire, New York: Blackwell Publishers.
Communities and Local Government, 2006, The Building Regulations 2000: Fire Safety – Approved Document B, London.
Diamantes, D., 2004, Principles of Fire Prevention, London: Cengage Learning.
Department for Communities and Local Government, 2006, Fire Safety Risk Assessment, London.
Gipson, L., 2003, Fire Safety and Fire Prevention Strategies, New York: Prentice Hall Publishers.
Great Britain, 2006, Fire Safety, London: The Stationery Office.
Health, Safety & Environment, Introduction, Accessed at: http://www.lboro.ac.uk/admin/hse/fire/index.html [Accessed on 8 August 2009]
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