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

MICRO PROCESSOR, Describe the operation an 8086 will perform when it excute...

Describe the operation an 8086 will perform when it excutes ADD AX,BX

#title.project, what type of projects are take place in the chemical engin...

what type of projects are take place in the chemical engineering

Find the standard deviation of this portfolio''s returns, Suppose you have ...

Suppose you have $50,000 that you want to invest in two companies, Bethlehem Books and Allentown Audio. Bethlehem has a return of 10% and standard deviation 15%, while Allentown ha

Roll-compacting, Q. Describe the continuous production of metal strip by ro...

Q. Describe the continuous production of metal strip by roll compacting of powder. Differentiate between impregnation and infiltration. Ans. Roll-compacting : It is the

Subtraction of two 16-bit numbers, write a programme of subtraction of two ...

write a programme of subtraction of two 16 bit numbers

Base case NPV analysis , How base case NPV analysis is applied in financial...

How base case NPV analysis is applied in financial risk management

Electronic , how to work ever moll models

how to work ever moll models

Java, 2. Differentiate between stream oriented and data gram oriented socke...

2. Differentiate between stream oriented and data gram oriented socket in java?

Gas metal arc welding (gmaw), Gas metal arc welding (GMAW) is performed by ...

Gas metal arc welding (GMAW) is performed by using direct current reverse polarity as it gives both good cleaning action and fast filler metal deposition rates. A rather high weldi

Resolving power and rayleigh criterion of resolution, Q. Explain Rayleigh c...

Q. Explain Rayleigh criterion of resolution. What is meant by resolving power of grating? Ans.   Resolving Power (i)  Meaning of Resolution : The resolving power of

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