Question: Consider problem 5.18(a). Determine the amount of fuel required per mole of air if the fuel is modeled as isooctane and combustion is complete. Data

Consider problem 5.18(a). Determine the amount of fuel required per mole of air if the fuel is modeled as isooctane and combustion is complete.


Data from problem 5.18(a):

Consider the air-standard Otto cycle explained in the online supplement. At the beginning of the compression stroke, P1 = 95 kPa, T1 = 298 K. Consider air as an ideal gas stream with CP = 0.79·CP,N2 + 0.21·CP,O2. If the compression ratio is 6, determine T2, T4, and the thermal efficiency, if T3 = 1200 K and the following are true

(a) The heat capacities are temperature-independent at the values at 298 K.

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