Thursday, November 17, 2011

Lab-8 Conversion Factor Use

Question:

Do we have to use the conversion:

1 BTU = .293071 watt-h?

We found for EER that the units are BTU/kwh^2. Is this right? We are just worried that we need to use the conversion above for something, we didn't, but we want to know if that is something we are actually supposed to use.

Response:
It's often true in "real life" that you have available information that is not directly needed - sometimes its totally irrelevant and other times it's helpful for understanding, but not necessary for a specific calculation.  I'd suggest that this may well be the case with this piece of information.  If you can do the problem without using the info, then it's not required.

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