Question

A furnace uses preheated air to improve its fuel efficiency. Determine the adiabatic flame temperature when the furnance is operating at a mass air-fuel ratio of 16 for air preheated to 600 K. The fuel enters at 300 K. Assume the following simplified thermodynamic properties:
Tref = 300 K MWFUEL=MWAIR=MWPROD = 29 kg/kmol cp,fuel =cp,air= cp,prod = 1200 J / kg-K
hf,air = hf,prod = 0 hf,fuel = 4x107 J/kg

Answer 1

Answer:

2543 k

Explanation:

This problem can be resolved by applying the first law of thermodynamics

Determine the adiabatic flame temperature when the furnace is operating at a mass air-fuel ratio of 16 for air preheated to 600 K

attached below is a detailed solution

cp = 1200