Steam flow calculation from tank

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BertHeylen
Posts: 1
Joined: Tue Nov 04, 2014 12:41 pm

Steam flow calculation from tank

Post by BertHeylen » Tue Nov 04, 2014 1:09 pm

I need to calculate the steam flow rate (Nm³/hr) for the following application
* 500 L tank is put under pressure with saturated steam at 2.1 barg
* Steam temperature is 135 °C
* To decrease the pressure in the tank, a valve is opened to the atmosphere
* The valve shuts again when the pressure in the tank is 1.7 barg
* The pipe diameter is 1" and is longer than 10m.

A reliable estimation would already be good.
If I try to do this the discharge gas calculator, the value seems quiet high to me, so not sure I I use it correctly.

Thank you for your help.
Best regards,
Bert

admin
Site Admin
Posts: 358
Joined: Mon Feb 08, 2010 7:47 pm

Re: Steam flow calculation from tank

Post by admin » Wed Nov 05, 2014 11:24 pm

Without knowing the K of valve you can't tell the flow rate even using gas discharge calculator. If you fully open valve you can use K for it from manufacturers datasheet.
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