Fire fighting operations - high rise buildings, Other Engineering

Assignment Help:

Fire fighting operations - high rise buildings:

Inlets that allow the fire service to supplement to water to the sprinklers and to the fire mains are useful additions to the measures that assist fire fighting.

When fire fighting operations are being undertaken, doors to the fire fighting staircase are bound to be held open (by hose) so either ventilation or pressurisation must be provided to stop the stairs becoming smoke logged. Elements of a pressurisation system are automatic opening vents on each floor.                                         

These open to keep the area where the fire has started close to ambient pressure so that a pressure difference can be maintained to the staircase (the staircase being at a slightly higher pressure).  The vents also allow a continued through-flow of air when doors are open for fire fighting.  If the vents do not open or are obstructed because new internal partitions have been constructed, for example, then the space where the fire is will become pressurised, losing the pressure difference between it and the staircase and the through-flow of air when the door is open will not take place allowing smoke to enter the stairs.  Vents are normally required on at least  two faces of  the building  to  allow for  positive  wind pressures on one face of the building.

 

 

 


Related Discussions:- Fire fighting operations - high rise buildings

Blade twist - aircraft engine, BLADE TWIST: Rotational velocity and its...

BLADE TWIST: Rotational velocity and its effect on the Angle of Attack depends on the radius of the blade element in question. A blade element near the blade root (hub) will h

Time motion study, how to create a chart of time motion study

how to create a chart of time motion study

Pn junction diode, what is the effect of temperature on pn junction diode o...

what is the effect of temperature on pn junction diode of component

Propeller efficiency, PROPELLER EFFICIENCY: The propeller is 80 - 87% e...

PROPELLER EFFICIENCY: The propeller is 80 - 87% efficient up to approximately 400 mph.  Generally, beyond this performance will fall off, although new materials and improved bl

Fluid mechanics, 2 horizontal flate plate 0.15mm apart and space between th...

2 horizontal flate plate 0.15mm apart and space between them is filled with an oil having viscosity 1poise the upper plate of area 1.5m2 is required to move with a speed of 0.5m/se

Grain growth, Q. Explain the grain growth. Ans. Grain growth: After R...

Q. Explain the grain growth. Ans. Grain growth: After Recrystallization is complete, the strain free grains will continue to grow if the metal specimen is left at elevated te

Signal processing, why shift variant system causes artifacts

why shift variant system causes artifacts

Procedures for starting and ground running of aircraft , Procedures for sta...

Procedures for starting and ground running: Before starting and ground running any gas turbine powered aircraft, several considerations must be taken into account. The first an

Engine torque, ENGINE TORQUE It is the force of rotating action about t...

ENGINE TORQUE It is the force of rotating action about the crankshaft axis at any given instant of time. It is given by,

Shelf list filing - library management, Shelf List Filing   Shelf list ...

Shelf List Filing   Shelf list reflects the arrangement of documents in the library. That is to say, the classificatory arrangement of the documents in a library can be seen th

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd