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Steam And It's Condensate


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#1 Jaldhipatel

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Posted 17 January 2022 - 12:21 PM

Is it possible that middle pressure steam and middle pressure condensate has same temp and pressure ?

I'm in project where I got data from licensor that steam 20 to 23 barg temp 215 to 220 C it's condensate has same parameter how this possible ?

#2 MrShorty

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Posted 17 January 2022 - 12:43 PM

Looking at the vapor-liquid saturation curve for water given here https://www.engineer...sure-d_599.htmlit would appear that about 215 C and 20 bar is right along the saturation curve, so water can exist as both a liquid and a vapor (or a mix of both) at this temperature and pressure. I expect that this is what your licensor is referring to.



#3 Jaldhipatel

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Posted 18 January 2022 - 07:51 AM

Yes from vle we can said that water exist as vapor and liquid both at that temp and pressure but is it practically approachable to achieve that after heat transferring that same temp pressure condensate we get from steam.

#4 MrShorty

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Posted 19 January 2022 - 04:40 PM

I'm afraid I do not know enough about heat exchanger design to say anything intelligent about the practicality of having a saturated steam+water stream in the heat exchanger. Someone else or your licensor will likely have better input than I can give.



#5 breizh

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Posted 19 January 2022 - 10:08 PM

Hi ,

Consider this calculator to support your work .

note : When you drop the pressure of HP condensate (flash separator ) you got MP or LP steam in equilibrium with condensate .

Good luck

Breizh 






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