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

Capital Rationing, Capital Rationing Capital Rationing refers to a situati...

Capital Rationing Capital Rationing refers to a situation where the firm is constrained for external, or self-imposed, reasons to obtain necessary funds to invest in all investmen

Aviation legislation - dealer’s certificate , DEALER'S CERTIFICATE Refere...

DEALER'S CERTIFICATE Reference: When the sale of an aircraft involves flight without a Certificate of Registration, The C.A.A. will permit the aircraft to fly under certain re

Sizing, Q. What is the purpose of :          (i) Sizing,            ...

Q. What is the purpose of :          (i) Sizing,                  (ii) Coining operations in powder metallurgy,         (iii) Infiltration,           (iv) Impregnati

Long term goals behind artificial intelligence, Artificial Intelligence ...

Artificial Intelligence Artificial Intelligence is a typical science to describe, because it has fuzzy borders with, psychology, computer science, mathematics, philosophy, stat

Pressure relief valve - aircraft engine, PRESSURE RELIEF VALVE The pres...

PRESSURE RELIEF VALVE The pressure relief valve shown in the figure. controls the oil pressure at the pre-set value demanded by the system. The valve is normally integral with

Cash flows, Your company is considering a machine that will cost $6,287 at ...

Your company is considering a machine that will cost $6,287 at Time 0 and which can be sold after 3 years for $790. To operate the machine, $886 must be invested at Time 0 in inven

What is trial balance?, What is Trial Balance?  All business periodicall...

What is Trial Balance?  All business periodically tabulate the charge and credit worthiness stability separately in a declaration to see whether the complete of charge account b

Determine energy emissions per capita, What is the energy related CO 2 emi...

What is the energy related CO 2 emissions per capita and per $1,000 of GDP? Add the point representing Florida on the Energy CO 2 intensity graph in Appendix. How does it

Ts diagram, how to find points on Ts diagram?

how to find points on Ts diagram?

Ewing’s molecular theory of magnetism, Ewing’s molecular theory of magnetis...

Ewing’s molecular theory of magnetism   Every molecule of a magnetic substance behaves as a tiny magnet called molecular magnet. In an unmagnetized state the molecular m

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