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A THREE PARAMETER FORMULATION OF THE JOFFE EQUATION OF STATE

IP.com Disclosure Number: IPCOM000221505D
Publication Date: 2012-Sep-07

Publishing Venue

The IP.com Prior Art Database

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 68% of the total text.

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~C~ 0


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T


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N

0



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'0


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0

o

I


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I! II - II II

I I I I



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e~ o


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N


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o


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o o


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0

o ooooo oo oo ~ ~

I .+ I .+ I .+ I .+ I .+ I .+ I .+ I.+ I.+ I .+ oooooooooo,. ~~ ~ 0 O0 ~-- O0 0 0 0


I.<

o

O~ 0 0

0 o


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.o .o

I

I

.o

I

.o

BP

C

RT c

p

I

I

p

I

.o

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1.5


1.4

REDUCED TEMPERATURE, T/T c


1.3


1.2


I. I


1.0


0.9


0.03 0.02 0.0



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~ ~~RE~UCED PRESSURE, P/Pc



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4.5

MODiFiED ~OFFE EOUAT~ON

I PROPANE I

~


1.5 2.0 2.5 3.0 REDUCED PRESSURE, P/Pc

'~

I I I


1.0

SATURATED

VAPOR

CURVE

I

0


0.9

NO.8


0.4


0.:5 0.2



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4.5

~ . ~ MODIFIED ,JoFFE EQUATION

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

REDUCED PRESSURE, P/Pc

F~-UR.E 5

SATURATED

VAPOR CURVE


0.7'-

0,4' 0.3


0.2

~k" ~



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COMPRESSIBILITY FACTOR, Z

0


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I'rl -.-i "r" Z

I'rl i 0 Z Ill

z

0 0 0 0 0



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Z OR <~2 " f2/Py~,



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FUGACITY COEFFICIENT, ~.= flPy

111

O" 0

0

0 0



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H = o FOR SATURATED LIQUID AT -280~F.

500

480

DATUM:

460

440

380 400 420

ENTHALPY, BTU/LB

SATURATED VAPOR,

~ MODIFIED

JOFFE

¯ SATU...