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

Physical significance of wave function , Wave function is a complex quantit...

Wave function is a complex quantity, which itself has no physical significance. But square of its magnitude gives the probability of finding a particle in a given volume of space a

Aerodynamics-flow model diagram , We will need to use several different flo...

We will need to use several different flow models as we go along. It is crucial to understand the simplifications used to obtain these models because these limit the validity of th

Thin-film ic, THIN-FILM IC: Unlike the monolithic IC's, which are forme...

THIN-FILM IC: Unlike the monolithic IC's, which are formed within a semiconductor material (substrate), the thin-film circuit is formed on the surface of an insulating substrat

#digital electronics, #Design 2:1 MUX with strobe input using NAND gates

#Design 2:1 MUX with strobe input using NAND gates

Ac/dc conversion, Circuit that is able to convert an AC voltage signal into...

Circuit that is able to convert an AC voltage signal into DC voltage signal

Gating system design, A gating system is usually made up of :           ...

A gating system is usually made up of :                         (i) Pouring basin                                          (ii) Sprue well                         (iii) Ru

Principles of finance, "Suppose an investor acquired 1 Round lot of Walden ...

"Suppose an investor acquired 1 Round lot of Walden stock at $30/share last year. If the investor received a $1.00 per share dividend during the year and sells the shares at year-e

Oscilloscope probes, Direct probe,isolation probe,high impedence probe,acti...

Direct probe,isolation probe,high impedence probe,active probe,current probe

Assignment help, need help with energy engineering assignment,environment t...

need help with energy engineering assignment,environment technology assignment,mechanical assignment

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