Amount of water required for 100% saturation of 1 cubic foot volume at 350 F?

[vtmike]

Hi,

Can anyone help me out with this problem? I have a volume of 1 cubic foot. This volume has to be saturated to 100% at 350 F. How much volume of water needs to be added to 1 cubic foot of volume in order to get 100% saturation at 350 F?


Thanks,
Mike

 

[IRstuff]

you could look here, perhaps,

http://www.engineeringtoolbox.com/saturated-steam-properties-d_101.html

TTFN
faq731-376

 

[rmw]

How much water is in the volumn to start with?

rmw

 

[vtmike]

IRStuff,
How do I convert that data from the steam tables to amount of water I need to add to 1 cubic feet to fully saturate it?

rmw,
The assumption is that there is water in the volume to start with.

 

[IRstuff]

Huh?

350°F ~ 177°C, so from the line that contains, oddly enough, 177.7°C, the density is given as 4.9 km/m³. Am I missing something here?

TTFN
faq731-376

 

[katmar]

What is in the 1 cubic foot other than water? I presume it is air, but it needs to be stated. It is also necessary to know what the pressure is to be able to solve this problem.

Katmar Software - Engineering & Risk Analysis Software

http://katmarsoftware.com

"An undefined problem has an infinite number of solutions"

 

[ione]

I'm not sure this is what you're looking for, anyway.....

Suppose the starting conditions are:
T1 = 68 F
P1 = 14.7 psia

From water properties tables at these conditions the specific volume of water is v1 = 0.0160468 ft^3/lb.

From saturation water line at T2 = 350 F (and P2 = 2381.5 psig) the specific volume becomes v2 =0.0179862 ft^3/lb.

The increase in volume is of v2/v1 = 12.086%

 

[willard3]

I expect this is a homework problem. This is discouraged.

 

[IRstuff]

OP's been on the site for 4 yrs; must have graduated by now...

TTFN
faq731-376