Fichas
ventilation
Fichas del conjunto (10)
- 1deciding where to ventilatelocation of fire
location of occupants
interior and exterior exposures
which direction you wish to draw the fire
direction of wind
existing openings
available personnel and equipment
type of construction
purpose or use of occupancy - 2locating a fire (3)Size up
Reading smoke condition
Thermal imaging camera - 3means of ventilationmechanical, natural, hyrdaulic
- 4types of roof openingskerf cuts - slot cuts to determine direction of fire spread
inspection cuts - small triangles
louvered cuts - large rectangular openings - 5PPVmechanical means to pressurize compartment to push smoke/heat out through another opening
- 6disadvantages to NPV-equipment blocks access/egress
-must enter structure to intiate
-not effective in hi ceilings
-less adaptable to situation
-reqs special equipment
-equipment exposed to contaminants - 7how much should hydraulic ventilation cover of window85-90 percent of window
- fire must be under control first - 8natural stack effecthotter air inside, cooler outside
- 9reverse stack effectcooler air inside, hotter air outside
- 10mushroomingdownward migration due to physical barrier
Información
- Descripción
- Fichas sobre ventilation, creado por Jake U el 14/10/2015.
- Creado por
- Jake U
- Visitas
- 1
- Valoración