What affects the flow properties of a gas ?
What affects the flow properties of a gas ?
(OP)
Hi,
A quick question, I'm looking at two fire suppressant gasses, HFC 125 and HFC 227ea. One of which flows much better than the other. I was wondering which is the main property that affects the flow of the gas ? I was thinking vapour pressure but am probably wrong ! if you want to look into it, the Kidde website gives the properties www.kiddeaerospace.com/table_1.shtml. there is a large difference in the flow properties of the gasses so was wondering why ?
Any ideas ?
A quick question, I'm looking at two fire suppressant gasses, HFC 125 and HFC 227ea. One of which flows much better than the other. I was wondering which is the main property that affects the flow of the gas ? I was thinking vapour pressure but am probably wrong ! if you want to look into it, the Kidde website gives the properties www.kiddeaerospace.com/table_1.shtml. there is a large difference in the flow properties of the gasses so was wondering why ?
Any ideas ?





RE: What affects the flow properties of a gas ?
RE: What affects the flow properties of a gas ?
RE: What affects the flow properties of a gas ?
The reasons for "superpressurizing" bottles of HFC-227ea with nitrogen are :
• To facilitate gas flow as carla00 explained (its latent heat of vaporization is ~ 57 Btu/lb, cooling the liquid and reducing its vapor pressure)
• To provide a pad to enable the liquid to be transferred without flashing
• To maintain sufficiently high pressures at low ambient temperatures