user manual

*Z4.
TABLE 4.3-3 (Continued)
SERVICE MODULE RCS LOADING PARAMETERS AND CALCULATIONS - QUAD A
T. Fuel Density (ib/in3); solve
equation (i) below where T =
Temperature @ P above
PV Parameters for Combined
Primary and Secondary Fuel Tanks
U. Volume of GHE-GSE Line (in 3)
V. Volume of S/C GHE Line (in 3)
W. GSE Line Pressure (PSIG)
X. Bladder Pressure (PSIG)
Y. Stabilized Equilibrium
Pressure (PSIG)
Z. Specification PV Value @
Temperature P above (ib)
Maximum
Minimum
Z1. PV calculated fuel load (ib)
Solve equations (2) and (3) below
by substituting the values con-
tained in the above indicated
steps where U V = Volume or tanked
gas (in 3) in the primary tank and
F L = PV calculated fuel load.
Z2. Specification Nominal
value @ temperature H above (Ib)
Z3. Total fuel load (ib) ±0.7
(Item F plus Item ZI)
(i) Fuel density = 0.0329456 -
(0.186979)(i0-4)(T)
(w-Y)
(2) UV = U \y _ X - (C + S) (Y + X + 14.7)
F
k(3) F L = T (Q + R - U V + V + B + BI - T )
Secondary Fuel
Load by P.V. (ib)
* If secondary fuel load is determined by P.V. calculation, then in Equation Three
(3), substitute item Z4 for item F.
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4.3-5 SNA-8-D-O27(III)REV 2