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Compressors, Pumps, and Turbines 233

Cs = f (degrees of superheat) — Figure 5.2 (5.11.6)

Multistage
(5.11.7)

% = f (P,', PC', x) — Figure 5.21 (5.11.8)

GS = f (degrees of superheat') — Figure 5.21 (5.11.9)

c P =f (condensing pressure') — Figure 5.21 (5.11.10)

Thermodv namic Properties

S 2S=XsS 2Ls + (l-Xs)s 2VS (5.11.11)
(5.11.12)
h 2s = x s h 2LS + (1 - x s) h 2VS

h 2 = xh 2L + (l-x)h 2V (5.11.13)
s, = f(T,',P,') (5.11.14)

S2LS = f(P2') (5.11.15)
r
s 2 vs=f(P2 ) (5.11.16)
h,=f(T,',P 2 ') (5.11.17)

h 2LS = f(P 2') (5.11.18)

h 2V s=f(P 2 ') (5.11.19)

h 2L = f(P 2') (5.11.20)

h 2V =f(P 2 ') (5.11.21)

Variables
Single Stage

t| T - r| B - c s - m - hj - h 2 - h 2S - h 2LS - h 2Vs - h 2L - h 2V - s t - s 2S - s 2LS - s 2Vs - x - x s

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