User's Manual

Design
September 2013 3-22 P/N 81-CO2MAN-001
If the discharge time calculated in Equation (14) is greater than seven (7) minutes, the
minimum discharge rate must be increased.
(Equation 15)
Where:
= Minimum flow rate, lb./min (kg/min)
= Minimum quantity of agent to be supplied from Equation (3), lb. (kg)
EXAMPLE 8 - TOTAL FLOODING FOR DEEP-SEATED FIRES - Discharge Rate #1
Consider a bulk paper storage room with dimensions of 20 ft. by 20 ft. by 10 ft.
. Determine the discharge rate required to achieve a 30% concentration within 2 minutes
and to complete the agent discharge within 7 minutes.
From Equation (3):
Where is the Quantity of Agent for the Design Concentration, is the Quantity of Agent
to Compensate for Leakage, is the Quantity of Agent to Compensate for Ventilation, and
is the Quantity of Agent to Compensate for Extreme Temperatures.
From Equation (12):
Where is the Quantity of Agent for the Design Concentration, is the Volume of the
Enclosure, and is the Volume Factor.
= 20 ft. x 20 ft. x 10 ft.
= 4,000
ft.
3
= 8 ft.
3
/lb. from Table 3-3 for Record (bulk paper) storage
= 4000 
= 500 lb.
= 0 lb.
= 0 lb.
= 0 lb.
=
= 500+0+0+0
= 500 lb.
t
d
q
min
W
min
7=
q
min
Wmin
L
W
H
W
min
W
C
W
V
W
L
W
T
+++=
W
C
W
L
W
V
W
T
W
C
Vf
1
=
W
C
V
f
1
V
V
f
1
W
C
W
C
W
L
W
V
W
T
Wmin
W
C
W
V
W
L
W
T
+++
Wmin
Wmin