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I asked the professor I had for thermo; he had no idea where the NCEES solution came from either. I've also tried asking NCEES, but have not gotten a response. That isn't too surprising I suppose, but it is disappointing.

It's probably a mistake to spend as much time as I have ont it: it's just one problem. But it still bugs me because it doesn't make sense to me. I wonder if the difference is something to do with the heat recycling, but I can't seem to get the numbers to make sense.

David, thanks for the reply. That is exactly how I did the problem, and I got the same answer. However, the NCEES solution is NOT consistent with your (and my) approach. Instead of using Q=m*deltaT+m*hf for the heat requirement to evaporate water, NCEES uses Q=m*(975-50) and I cannot figure...

This one is driving me nuts; hopefully someone can help. As I understand it, the problem can be summarized as follows: A wet blanket (6.25% moisture) at 75 degF travelling at a rate of 1fps is to be dried and raised to 400 degF. The blanket has a wet density of 1.6 pcf. The blanket has a...