Register to reply

Calculate sublimation rate from pressure rise

Share this thread:
flysa01
#1
Mar9-12, 03:47 AM
P: 2
Hi, I did a pressure rise test on a chamber, where I closed the isolation valve and measured the increase in pressure over 30 seconds.

I want to use this information to calcualte the rate of accumulation of vapour in the chamber. What I'm looking for is the sublimation rate during freeze drying, so how does this increase in pressure correlate to a sublimation rate?

Any suggestions are much appreciated!!
Phys.Org News Partner Engineering news on Phys.org
'Smart material' chin strap harvests energy from chewing
Lockheed Martin advances live, virtual, constructive training in flight test
Lockheed Martin conducts flight tests of aircraft laser turret for DARPA
johneolson
#2
Aug1-12, 01:29 AM
P: 1
Before giving my suggestion I would like to know if you have solved this as I am very late to replay here? If know then I would love to answer you.

powder coat
flysa01
#3
Aug1-12, 01:49 AM
P: 2
Hiya, I never got it worked out right, do you know how to do it?? In the end I combined a few engineering equations with some chemistry ones and hoped for the best but I knew it wasn't right!


Register to reply

Related Discussions
Calculate the maximum height that m1 and m2 rise after collision? Introductory Physics Homework 3
Buoyancy rate of rise General Physics 1
Calculate the individual flow rate - based on the pressure drop? Mechanical Engineering 0
How to calculate rate of tank pressure change Introductory Physics Homework 6
How to calculate rate of tank pressure change Engineering, Comp Sci, & Technology Homework 1