Hydrogen Valve Size Calculation

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iplikci52
Posts: 1
Joined: Sat Feb 02, 2013 1:17 pm

Hydrogen Valve Size Calculation

Post by iplikci52 » Sat Feb 02, 2013 2:17 pm

Hello,

I want to select a solenoid valve to control a fuel cell application. I know the upstream pressure and necessary gas flow. But I couldn't find how to calculate orifice size of the valve. Could you please help me?

I have two solenoid valves on the system. First one is inlet solenoid valve directly after regulator which regulates pressure of hydrogen to 5 psi. After inlet solenoid valve hydrogen flows through fuel cell stack and there is outlet solenoid valve after stack. Outlet solenoid valve is opening to air.

I want hydrogen flow of 216 slpm. What should be sizes of both solenoid valves? How can I calculate them?

Thanks for help.

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