NMR Folks,
We plan to include an emergency air exhaust system triggered by an oxygen
sensor into our room renovation. The basement room will hold an existing
400 along with a new 500 and new 600. The room volume is 8100 cu. ft. and
the 600 alone could release a maximum of 5570 cu. ft. of helium gas.
We could easily and cheaply use a ground level window well for our exhaust
but the University is insisting on a 170 ft. piece of ductwork to exhaust
into the building's hood system. They are afraid that someone walking on
the lawn near the window well would be adversely affected by the helium.
If you have an emergency system like this, where do you dump the exhaust?
Thanks!
Ed Waali
Department of Chemistry
University of Montana
Received on Tue Dec 06 2005 - 16:20:25 MST