From: Bob Falkiner <email@example.com> Organization: RJF Home Date: Thu, 7 Nov 1996 05:46:43 GMT References: 1 Followups: 1
View raw article or MIME structure
most likely these are gas diffusion devices that take advantage of different rates of diffusion of O2 and N2 in different media. Commecial units are available from most industrial gas suppliers for small scale applications. Since it is still diffusion, it is at the small end of the industrial use curve, but these things were not around 10-20 years ago, so still in their infancy of industrial application. I think most of the membranes are silicone/silane and take advantage of oxygen higher diffusivity. Woodhams wrote: > > "P. Wezeman" <firstname.lastname@example.org> writes: > >this purpose. The newer of these two aircraft, the C-17, has a device > >that separates ambient air into its two main constituents, oxygen and > >nitrogen, and sends the nitrogen produced to the fuel tanks. As I > > Can anyone tell me how this device works? I would guess some chemical > absorbs oxygen from the air flow (leaving nitrogen for the tanks) and > is periodically heated to expel the oxygen.