What do you mean by rapid compression machine? Is it an internal combustion engine? If so what type of engine? Spark Ignition or Compression Ignition?
If you want the heat released from the fuel you just simply multiply the quantity of fuel used by the calorific value of the fuel. This will give you the total amount of heat released by the fuel.
The HRR is calculated based on the
cylinder pressure and volume measurements. The HRR
formula, is given in the below equation, it is derived from the 1st
law of thermodynamics. For simplication purposes, leakage
and heat transfer to the wall are assumed to be negligible and
were excluded during the derivation of this equation
dQ/ dθ = (γ/γ-1) P (d V/ dθ) + (1/γ-1) V (dP /dθ)
where, dQ/dθ is the HRR per crankangle, q is the crank angle, P
is the pressure, V is the cylinder volume.
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