After conducting a energy audit on a heating plant with a 2

After conducting a energy audit, on a heating plant with a #2 oil burner, your notes show that the combustion efficiency(CE) test readings were stack temperature of 510 digree F , room temperature of 70 digree F, 8.2% CO2, with a 0 smoke spot. The system\'s CE is

a) 75.6%

b) 77.4%

c) 78.5%

d) 80.4%

Solution

Ans: c (78.5%) at 440 net temparature.