Solution Found!
A coal from Texas which has an ultimate analysis (by mass)
Chapter 15, Problem 58P(choose chapter or problem)
Problem 58P
A coal from Texas which has an ultimate analysis (by mass) as 39.25 percent C, 6.93 percent H2,41.11 percent O2, 0.72 percent N2, 0.79 percent S, and 11.20 percent ash (non-combustibles) is burned steadily with 40 percent excess air in a power plant boiler. The coal and air enter this boiler at standard conditions and the products of combustion in the smokestack are at 127°C. Calculate the heat transfer, in kJ/kg fuel, in this boiler. Include the effect of the sulfur in the energy analysis by noting that sulfur dioxide has an enthalpy of formation of −297,100 kJ/kmol and an average specific heat at constant pressure of cp=41.7 kJ/kmol⋅K.
Questions & Answers
QUESTION:
Problem 58P
A coal from Texas which has an ultimate analysis (by mass) as 39.25 percent C, 6.93 percent H2,41.11 percent O2, 0.72 percent N2, 0.79 percent S, and 11.20 percent ash (non-combustibles) is burned steadily with 40 percent excess air in a power plant boiler. The coal and air enter this boiler at standard conditions and the products of combustion in the smokestack are at 127°C. Calculate the heat transfer, in kJ/kg fuel, in this boiler. Include the effect of the sulfur in the energy analysis by noting that sulfur dioxide has an enthalpy of formation of −297,100 kJ/kmol and an average specific heat at constant pressure of cp=41.7 kJ/kmol⋅K.
ANSWER:
Step by step solution Step 1 of 13Write the results of the ultimate analysis of coal from texas.Carbon,Hydrogen,Oxygen,Nitrogen,Sulfur,Ash,