LittleInch, thanks for your insight. I'll do my best to provide correct answers.
1 & 3) I get the readings for the steam produced and the fuel consumed from the Engineer's daily log, which is recorded straight from the Hayes chart.
2) It's perfectly plausible that this could be different than...
This is how the policy states to calculate it:
Q1(E1-E2) / Q2*X
Q1 = Water evaporated in lbs
Q2 = Fuel consumed in Cubic Ft of Natural Gas
E1 = Enthalpy of steam at operating pressure
E2 = Enthalpy of feed water
C = BTU value of fuel (1031BTU/CF for Natural Gas)
We take reading of steam...
Well, I've got most of that figured out using a steam properties table, however when I input my actual readings, I'm showing 108% Thermal Efficiency. Is that even possible?
It seems that every resource I can find does this a different way. In the case of the policy I am required to follow, I cannot find any resources to help with some issues that I'm running into. In this case, I'm trying to break down where certain figures are coming from, so that I can break it...