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

Mode iii interlaminar fracture toughness , Mode III Interlaminar Fracture T...

Mode III Interlaminar Fracture Toughness  The Mode III interlaminar fracture toughness of a composite can be measured using the split cantilever beam (SCB) geometry. Here, a c

Embedded system, need it in 10 days time and in Australian cods if there is...

need it in 10 days time and in Australian cods if there is

Classifications of moulding sands, 1. Generally moulding sands can be class...

1. Generally moulding sands can be classified as:           (a) Natural Sand           (b) Synthetic or High Silica Sand           (c) Chemically Coated Sand

Analyze an organization''s competition, Briefly explain how to analyze an o...

Briefly explain how to analyze an organization''s competition Answer: In order to analyze an organization’s competition, the following aspects need to be checked and recorded in o

Co2 molds (carbon dioxide moulding), CO 2  Molds (Carbon dioxide Moulding...

CO 2  Molds (Carbon dioxide Moulding) is the process of hardening the moulds and cores by using carbon dioxide and sodium silicate liquid base binder is one of the most widely u

Basic principles - propeller, BASIC PRINCIPLES : The purpose of a prope...

BASIC PRINCIPLES : The purpose of a propeller is to convert the power developed by the engine into a useful force called 'Thrust'. This force must be equal to and opposite in

Meer, write drawback of linear array

write drawback of linear array

Operations research, At a machine tool plant, five jobs must be completed e...

At a machine tool plant, five jobs must be completed each day. The time it takes to do each job depends on the machine used to do the job. If a machine is used at all, there is a s

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