User's Manual

Design
September 2013 3-48 P/N 81-CO2MAN-001
EXAMPLE 12 - LOCAL APPLICATION: RATE-BY-VOLUMBE - Assumed Enclosure with Walls
Consider a hazard with outside dimensions 4 ft. x 6 ft. x 3 ft. that is located in a corner.
The 6 ft. side of the hazard is 1-1/2 ft. away from the wall and the 4 ft. side is 1 ft. away from the
wall. The walls extend at least 10 ft. beyond the hazard. Calculate the design discharge rate and
minimum agent supply for a rate-by-volume system.
Assume an enclosure about the hazard:
Assumed Enclosure Dimensions:
7-1/2 ft. x 9 ft. x 5 ft.
= 7-1/2 ft. x 9 ft. x 5 ft. = 337.5
ft.
3
W
L
H
4 ft.
1-1/2 ft.
2 ft.
2 ft.
6 ft.
3 ft.
2 ft.
1 ft.
W
L
H
V