Yes but as you have suggested, I am now calculating the average fuel input over all cylinders per second. I have checked with my lecturer, and the figures I have are correct.
I am calculating fuel input based on working cylinder volume, throttle %, air /fuel ratio, subsequent air / fuel mass...
Thank you rcgldr.
Yes it's an internal combustion engine.
I am basing the heat input per cylinder on the amount of fuel which is used in 1 full cycle (i.e 2 revoltions on the crank angle encoder).
I believe you have answered my question.
I believe it is (237 x 2 cylinders) x 50...
Thanks very much for the response Steam King.
So the value I currently have of 5925 joules heat input, should I multiply this by 2 or 4. (It is a 4 stroke engine).
Multiply by 2 = 73% efficiency
Multiply by 4 = 36% efficiencyIf you could confirm that would be great.
Thanks again.
Hi all,
I am trying to compare the heat input into an engine with useful work out. I have taken a measurement for Torque, and have calculated heat input per cylinder based on combustion calculations i.e throttle % x cal value of fuel x fuel mass.
I am happy with the heat input...