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i Propane (C3H8) is combusted in a furnace. Dry exhaust volumetric analysis show CO2%= 16%; CO% = 1%; SO2% = 0.5%; O2% = 3% and the balance in N2. Calculate: I. Actual and stoichiometric A/F ratios. II. Equivalence ratio (Φ)
1. Coal (C135H96O9NS) is combusted in a furnace at atmospheric pressure. Calculate: I. Stoichiometric A/F ratio using the A/F s law. II. Write the fuel stoichiometric reaction mole and mass. III. Write the full reaction for actual combustion with 20% excess air. IV. Greenhouse emissions. V. Water vapor mass and dewpoint.
Problem 4 A fuel gas has a composition by volume of: 50% H2 , 6% CO2, 4% N2 , 40% CO. The dry exhaust gas analysis (% by volume) of the actual combustion process indicates 9.2% CO2, 0% CO, some O2. Recall that for gases, volumetric composition is the same as molar composition. (a) What air/gas ratio (by volume) is required for stoichiometric combustion? (m? air/ m² fuel gas) (b) What air/gas ratio (by volume) has actually been used? (m’...
3. A rich fuel-air ratio of propane in burned in an internal combustion engine. The analysis exhaust gas by the exhaust analyzer shows that CO2 = 17%, C3H8=0.5%, with the rest being N2 and some traces of H20. For this case Calculate: a) Write the balanced chemical equation for propane b) Compute air-fuel ratio and equivalence ratio when the ideal AFR is 14.8 ran
A fuel has a chemical formula of
(Mfuel= 264 kg/mol). Combustion of this fuel leaves half of the
available carbon atoms to become CO instead of CO2. The fuel is
combusted with an AF ratio of 5. Determine the theoretical and
excess air of this process.
C2N4H6O
You are in charge of a combustion furnace. The furnace is fed an air stream and a methane stream which is combusted to produce heat that is used to boil water and produce steam for your plant. The combustion of fuels using an air stream which contains nitrogen generally produces significant amounts of NO, compounds which are an air pollutant, so the exhaust gases must generally be removed through various processes. In this case, your furnace exhaust is passed through...
Question 1 25 Marks A fuel consisting of carbon, hydrogen, sulphur, oxygen and non-combustible is burnt under excess air conditions. A bomb calorimeter test gives the fuel energy content of 38.5 MJ/kg and after combustion the mass of ash is 5% of the original mass of fuel burnt. The percentage analysis of the exhaust gas yields (by basis) mass CO2 H20 N2 SO2 14.2% 15% 69.5% 0.3% O2 1% For this combustion calculation, assume 23% O2 and 77% N2 in...
A fuel is burned with bone dry air in a furnace. The stack gas is at 116 kPa and has a dew point of 47 °C. The Orsat Analysis of the gas shows 10 mol% CO2 and the balance being O2 and N2. Calculate the ratio of H/C in the fuel.
1. The volumetric analysis of flue gas from combustion of methane in a gas boiler is measure to be as follow. 02 CO2 10.50% 3.00 CO 0.0 N2 86.5 100% Determine: a. Combustion equation b. Percentage of excess air. c. Air fuel ratio (A/F) d. Dew point temperature of the combustion product
A mixture of propane and butane is fed into a furnace where it is mixed with air. The furnace exhaust leaves the furnace at 341°C, 759.0 mmHg and contains only N2, O2, CO2, and H20. The partial pressure of O2 in the exhaust is 24.97 mmHg and the partial pressure of CO2 in the exhaust is 75.14 mmHg. What is the mole fraction of propane in the fuel stream? We were unable to transcribe this imageWhat is the dew point...