Register to reply

Flux and Flow rate conversion

by AlexN07
Tags: conversion, flow, flux, rate
Share this thread:
AlexN07
#1
Jul28-10, 07:47 AM
P: 1
Hi,

I am performing a helium leak experiment in which the detector outputs a number in mbar.L/s which is the amount of helium permeating through a specimen at a given pressure per unit of time.

I am interested in obtaining a permeability coefficient (K) for this specimen for the given pressure with helium as the working fluid.

My equation is: -K = J . delta x / delta P (rearrange Fick's 1st Law)

I know delta x (thickness) and delta P (pressure), however I am having trouble converting the mbar.L/s (leak rate) to a flux J (which I believe is in (mol /m^2 . s) for the equation.

Can somebody please help.

Alex
Phys.Org News Partner Chemistry news on Phys.org
Chemists eye improved thin films with metal substitution
Essential oils may provide good source of food preservation
Artificial skin flexes when it comes into contact with a solvent vapour

Register to reply

Related Discussions
Why does flux flow through ferromagnetic materials? General Physics 1
Conversion of Photon flux to Counts Advanced Physics Homework 2
Flow and flow rate please help Introductory Physics Homework 6
Flow Rate Mechanical Engineering 6
Flow rate Introductory Physics Homework 2