368
AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3
11 DECEMBER 2001
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Example 2.
Tank measurements:
Height: 40 inches
Diameter = 2 x (radius)
Diameter: 12 inches
R (inches) = 12/2 = 6
Tank contents: C2H2
Internal Pressure: 500 psi
Tank Volume
V = p r2h
V = p (6 inches)2 x (40 inches)
= {4524 inches3} x {1/1728 (Ft3/inches3)}
V = 2.618 Ft3
P (pounds of gas) = 0.00512 x A x B x C
= {0.00512 in2/Ft3} x {500 psi} x {2.618 Ft3} x {0.897}
P = 6.01 pounds
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Example 3.
Tank measurements:
Height: 50 inches
Diameter = 2 x (radius)
Diameter: 9 inches
R (inches) = 9/2 = 4.5
Tank contents: CO2
Internal Pressure: 900 psi
Tank Volume
V = p r2h
V = p (4.5 inches)2 x (50 inches)
= {3181 inches}3 x {1/1728 (Ft3/inches3)}
V = 1.841 Ft3
P = 0.0001744 x A x B x M
= 0.0001744 x (900 psi) x (1.841 Ft3) x (44.00)
P = 12.7 pounds
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Example 4.
Tank measurements:
Height: 40 inches
Diameter = 2 x (radius)
Diameter: 12 inches
R (inches) = 12/2 = 6
Tank contents: C2H2
Internal Pressure: 500 psi
Tank Volume
V = p r2h
V = p (6 inches)2 x (40 inches)
= {4524 inches3} x {1/1728 (Ft3/inches3)}
V = 2.618 Ft3
P = 0.0001744 x A x B x C
= 0.0001744 x (500 psi) x (2.618 Ft3) x (26.00)
P = 5.94 pounds
