User's Manual

Design
P/N 81-CO2MAN-001 3-57 September 2013
3-11 AGENT STORAGE BANKS
This paragraph covers the design and layout of the agent storage bank.
3-11.1 Agent Supply
All cylinders connected to a common manifold shall be interchangeable and of one select size.
Therefore, the supplied quantity of agent is generally greater than the minimum design
quantity that is calculated for the system.
(Equation 33)
Where
= Minimum agent supply for the system, lb. (kg)
= Minimum agent quantity for total flooding portion(s), lb.(kg)
= Minimum agent quantity for local application portion(s), lb.(kg)
= Minimum agent discharged through Pressure Operated Siren(s), lb.(kg)
Calculate the quantity of cylinders to be supplied.
(Equation 34)
Where
= Number of cylinders required
= Minimum agent supply for the system from Equation (33), lb.(kg)
= Selected cylinder capacity, lb.(kg)
Round up the calculated quantity of cylinders and calculate the actual quantity of agent to be
supplied.
(Equation 35)
Where
= Total carbon dioxide supplied, lb.(kg)
= Number of cylinders required, rounded up
= Selected cylinder capacity, lb.(kg)
W
min,sys
W
min,TF
W
min,LA
W
s
++=
W
min,sys
W
min,TF
W
min,LA
W
s
n
cyl
W
min,sys
W
cyl
=
n
cyl
W
min,sys
W
cyl
W
sys
n
cyl
W
cyl
=
W
sys
n
cyl
W
cyl