Search results for query: *

Hello, I'm calculating the Polarization curve for my PEM Fuel Cell. I am stuck on one value the Limited Current Density. I have all the values but I'm not sure how I deal with the two different bulk concentrations of the reactants(air and hydrogen). Do I add these together or keep them seperate...

Thanks Doug, The application will be running at 80 C the previously given figures for the bulk concentration were given at a NTP of 0, does this mean that the figures would change? If so then how would I work it out?

Trying to find out the Youngs modulus of Nafion 115 under a temperature of 80C. And creep information under elevated temperature. Can anyone help?

Thanks a lot for the reply. I'm sorry for my ignorance in the subject but what does NTP stand for?

Hello, I'm trying to calculate the bulk concentration of Oxygen in Air and Hydrogen in pure Hydrogen in mol cm-3. I have looked on websites but couldn't find any answer. Can anyone please help.

A client has sent us AutoCad 2005 drawings but we only have AutoCad 2002. Is it possible for us to print the AutoCad 2005 by e.g. downloading a Shareware program from the internet ect. We don't really want to spend any money. Can anyone shine some light on the situation

What is the difference between the Rankine Gordon Formula and the Euler Formula. I'm working out the buckling loads for struts but the formula's give different results for the same strut problem. Why are the results different? Could somebody please help me out? Or if not are there any sites that...