Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
(OP)
Folks,
I am looking for a blower to produce a flow of ~150cfm (~4m^3/min) while pumping H2 pressurized at ~40bar. The blower needs to provide a pressure increase of ~5bar.
I am wondering if something like a supercharger blower might work.
-Jon Nord, MSEE
I am looking for a blower to produce a flow of ~150cfm (~4m^3/min) while pumping H2 pressurized at ~40bar. The blower needs to provide a pressure increase of ~5bar.
I am wondering if something like a supercharger blower might work.
-Jon Nord, MSEE





RE: Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
If you cannot find a machine which suits your application, one approach which is awkward but which can be made to work is a "fan in a can"- a low pressure blower installed inside a pressure vessel.
RE: Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
Of the limited success that you've had, what have you tried and what has worked best?
RE: Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
One good thing is that there are no dry gas seals to worry about- you can get away with a labyrinth seal on the fan itself because the labyrinth leakage will be into the vessel which is what you feed the suction to.
The trick is the drive and bearing design if the motor is outside the can, and electric feed-throughs and motor cooling and maintenance if the motor is to be inside the can.
Often there's another way to re-arrange the flowsheet to eliminate the gas recirc need entirely. That's the easy way out if it's feasible.
RE: Need:150cfm blower to pump pressurized (~40bar) H2 with delta P ~5bar
It is looking like the application will need something like a very high speed centrifugal compressor. Maybe something like Rotrex 200000rpm compressors. Maybe something like the Mechanology machines if they are compact enough.