R
RVincent
I have encountered two problems (#504 and #524) in the Thermal and Fluids depth portion of the NCEES Sample Questions book that involve isentropic expansion of steam in a turbine. The solutions obviously came from using the steam tables based on the precision of the enthalpy and entropy values. But, it seems to me that it is way faster to use the Mollier diagram than to interpolate values in the steam tables. I solved them both ways, and found that my numerical answers were much closer to the values in the book when using the steam tables than when I used the Mollier diagram. BUT, when using the Mollier diagram I got an answer much more quickly and the numerical answer was close enough that I would have chosen the correct answer.
So, is it the best strategy to use the Mollier diagram for these types of problems?
Thanks,
Randy
So, is it the best strategy to use the Mollier diagram for these types of problems?
Thanks,
Randy