User's Manual

Design
September 2013 3-16 P/N 81-CO2MAN-001
EXAMPLE 5 - TOTAL FLOODING FOR SURFACE FIRES - Extreme Temperatures
Consider a temperature cycling enclosure with dimensions of 5 ft. by 5 ft. by 5 ft. .
The design concentration is 34%. The ambient temperature range is -15°F to 250°F. Determine
the additional quantity of carbon dioxide to compensate for the extreme temperature range.
From Equation (10):
Where is the Quantity of Agent to Compensate for Extreme Temperatures, is the
Temperature Correction Factor, is the Quantity of Agent for the Design Concentration, is
the Quantity of Agent to Compensate for Leakage, and is the Quantity of Agent to
Compensate for Ventilation.
From Equation (2)
Where is the Basic Quantity (34%) and is the Material Conversion Factor.
From Equation (1):
Where is Volume Of The Protected Space and is the Volume Factor.
= 5 ft. X 5 ft. X 5 ft.
= 125
ft.
3
= 14 ft.
3
/lb., from Table 3-2 for volumes up to 140 ft.
3
.
= 
= 125  14
= 9 lb.
= 1.0, from Figure 3-1 for 34% concentration
= x
= 9 x 1.0
= 9 lb.
= 0 lb.
= 0 lb.
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