I have a problem with a helium recovery system that I need help with! Aug 6,2019
We are collecting (recovery) helium from dowers (boil-off) on the 5th floor which boil-off to a recovery piping system.
Its pressure requirements in the piping system needs to be just above atmospheric at the gas connections of the 5th floor dowers
and the gas needs to travel down to the basement (90 ft below) to the the helium bag collection system before running through a compressor for supplying
the purifiers and liquidizers for building reuse.
What I need to know is from the 20,000 cu ft collection bag (max. pressure 1.5 psi above atmospheric) in the basement,
what will be the the pressure rise (90 ft above) in the 5th floor collection piping at the dower connections?
Or since pressure is per pipe diameter area the piping size is not important in the calculation, but its 2"
what is the pressure increase in a 25 foot section of vertical pipe filled with Helium at around atmospheric pressure?
Since the pressure gauges measures the surrounding air pressure as a reference for the piping pressure, is it significant enough to consider
because the dowers are at the same pressure upper elevation?
MRY118
We are collecting (recovery) helium from dowers (boil-off) on the 5th floor which boil-off to a recovery piping system.
Its pressure requirements in the piping system needs to be just above atmospheric at the gas connections of the 5th floor dowers
and the gas needs to travel down to the basement (90 ft below) to the the helium bag collection system before running through a compressor for supplying
the purifiers and liquidizers for building reuse.
What I need to know is from the 20,000 cu ft collection bag (max. pressure 1.5 psi above atmospheric) in the basement,
what will be the the pressure rise (90 ft above) in the 5th floor collection piping at the dower connections?
Or since pressure is per pipe diameter area the piping size is not important in the calculation, but its 2"
what is the pressure increase in a 25 foot section of vertical pipe filled with Helium at around atmospheric pressure?
Since the pressure gauges measures the surrounding air pressure as a reference for the piping pressure, is it significant enough to consider
because the dowers are at the same pressure upper elevation?
MRY118