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

#, • ''Discussed Since the promised return on Russian government debt is mu...

• ''Discussed Since the promised return on Russian government debt is much higher than the promised return on US government debt, you should invest your money in Russia

Balanced mutual fund, Balanced Mutual Fund The mutual fund that objective i...

Balanced Mutual Fund The mutual fund that objective is a balance of stocks & bonds. Balanced funds refer to be less volatile than stock only funds. The return or principal value of

Difference amplifier, Difference amplifier: Figure shows how two inputs...

Difference amplifier: Figure shows how two inputs can be subtracted. This circuit differs from previous types with negative feedback in that the non-inverting terminal is not

Aircraft internal and external markings, AIRCRAFT INTERNAL AND EXTERNAL MAR...

AIRCRAFT INTERNAL AND EXTERNAL MARKINGS SMOKING IN AIRCRAFT - Reference: ANO Article 66 and JAR-25.791 Every aircraft registered in the U.K. must have a notice indicati

Strain energy release rate , The energy release rate, often denoted by G, i...

The energy release rate, often denoted by G, is the amount of energy per unit area that is supplied by the elastic energy in the body and loading system in creating a new fracture

Resistive transducers, Resistive transducers Linear or rotary potentiom...

Resistive transducers Linear or rotary potentiometers can be adapted to measure displacement, possibly through mechanical gearing and linkages. The displacement is registered a

Caselet- 2, suggestion regarding credit limit. should it be approved or not...

suggestion regarding credit limit. should it be approved or not what should be the amount of

Duty cycle, how to modulate duty cycles

how to modulate duty cycles

Investment allowance, Investment allowance Until a few years ago, a compan...

Investment allowance Until a few years ago, a company could charge an amount equal to 25 per cent of the original value of an asset as investment allowance in the period in which

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