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Old Nov 12th 2014, 01:50 AM   #1
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thermo volumetric flow

Determine the volumetric flows of dry steam and liquid water?

Formula to calculate the dry steam and liquid water?

thanks

1. The problem statement, all variables and given/known data

Given the rate of pipe= 100 kg/s

The steam flow has quality x= 80% = 0.8, pressure= 90 atm

Find the volumetric flows of dry steam and liquid water

2. Relevant equations.

[​IMG] Volumetric flow= Area * v where v is the rate of pipe 100 k/s
3. The attempt at a solution

Volumetric flow= Av= (1metre square)(100kg/s)= (100metres square)8kg)/s

The part that is confusing me is the steam quality. What for I need the steam quality in the problem? Is there any formula that relates the steam quality and rate of the pipe to calculate the volumetric flow of dry steam and liquid water?

I don’t know what the problem is giving me the quality and pressure?
Looking at the pressure 90 atm for the liquid water and vapor, I will find the temperature of both.Then I will determine the specific volume of both?
Yes, exactly, Im using the steam tables.

Last edited by ariana; Nov 13th 2014 at 02:20 AM. Reason: add info
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Old Nov 12th 2014, 03:12 PM   #2
MBW
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I think that the key is that dry stream is a gas (so ideal gas laws apply) while water is an incompressible fluid.
It is hard to give a more comprehensive response to such a brief original post.
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