[quote=“Zer0DazE,post:4,topic:40039"”]
whats wrong with Fahrenheit as a unit of measure in these examples?
[/quote]
Actually, nothing, you added 460 to it to convert to Rankine. I was thinking that it would be needed for the Eff equations as well, but sense you are dealing with a percentage of a delta T it doesn’t matter (you would just convert to get the same amount of “stuff”).