Determine the air to fuel ratio of:
Canadian natural gas, with 93.9% methane, 4.2% ethane, 0.3% propane, 1.0% nitrogen, and 0.6% hydrogen sulfide (vol%), which burns at a stoichiometric value of ? = 1.2.
Determine the air to fuel ratio of: Canadian natural gas, with 93.9% methane, 4.2% ethane, 0.3%...
A natural gas fuel consists of the following volumetric composition: Methane, CH4: 92.5 % Ethane, C2H6: 3.7 % Propane, C3H8: 0.8 % Nitrogen, N2: 3 % (a) Write out the complete combustion equations for all the combustible constituents individually. (b) Calculate the stoichiometric air to fuel (A/F) ratio on a volume basis. (c) Determine the wet volumetric analysis of the combustion products. (d) Find the dry volumetric analysis of the combustion products.
2. Natural gas containing a mixture of methane, ethane, propane, and butane is burned in a furnace with excess air. One hundred kmol/h of a gas containing 94.4 mole% methane, 3.40% ethane, 0.60% propane, and 0.50% butane is to be burned with 17% excess air. a) Calculate the molar flow rate of the air. b) Now instead of using numerical values, we will work the problem by deriving an equation. Define the following variables: i.molar flow of the fuel gas:...
Problem: Bapco needs to burn natural-gas fuel that contains 75 mol% methane, 15 mol% ethane, and 10 mol% nitrogen. The following two reactions takes place: CH4(g) 20209) CO2(0) 2H2o) C2H6 (g) + 3.502(g) 2C02(g)3H20 (g) a) What is the standard heat of combustion (kJ/mol) of the fuel at 25 oC with water(g) as a product b) The fuel is supplied to a furnace with 60% excess air, both entering at 250C. The products leave at 600°C. If the combustion is...
a) A natural gas fuel contains 80 v/o methane, 10 v/o ethane, and 10 v/o propane. Determine the heat released by combustion of 1m3 of the gas. Assume that products of combustion are CO2 and liquid H2O. b) How would the answer to part (a) change if the water produced were vaporized?
Question 5 A fuel gas containing methane (CH) and ethane (CH) is burned with dry air in a furnace, producing a stack gas at 300 °C and 105 kPa (absolute). You analyze the stack gas and find that it contains no unburned hydrocarbons, oxygen, or carbon monoxide. You also determine the dew-point temperature. ICO concion a) If the fuel gas contains exclusively methane, what is the stack gas composition? What if the fuel gas is exclusively ethane? b) Estimate the...
A fuel gas containing 86% methane, 8% ethane and 6% propane by volume flows to a furnace at a rate of 1450 m3/hr at 150oC and 150 kPa (gauge), were it is burned with 8% excess air. Calculate the required flow rate of air in SCMH (standard cubic meters per hour).
1 kmol of gas Ethane is burned with 175 percent theoretical air in a steady flow combustion chamber. An analysis of the combustion gases reveals that all the hydrogen in the fuel burns to H2O but 95 percent of the Carbon burns to CO2 with the remaining 5 percent forming CO. Treating the air as dry air, determine; (a)The balanced combustion equation. (b)The air-fuel ratio. (c)The amount of heat transfer (in kJ/kg of fuel) from the combustion process if the...
Determine the air to fuel ratio for a stoichiometric mix of of Ethane (C2H6) and Air (O2+3.76N2). The products are CO2 and H2O and N2. (Molecular Weight of C2H6=30, O2=32, N2=28, CO2=44, H2O=18).
Q4 Methane gas (CH) burns with 40%excess air, and products leave at 700 K.Assuming the fuel and air enter the combustion chamber at 250 C and atmospheric pressure, determine (a) Air fuel ratio (b) the dew point of the products and (c) the heat transfer from the combustion process for 1 kmole of CH4 Substance hr, 700 K kJ/kmol he, 298 K kJ/kmol kJ/kmol CH4 02 N2 CO2 H2O -74,850 8.682 8,669 -393,520 9,364 -241,820 9,904 21,184 20,604 27,125 24,088...
Ethane gas (C2H6) is burned with air. The fuel flow rate is 0.1 kg/s and the air flowrate is 2.2 kg/s. Ethane's enthalpy of formation is -84,680 kJ/kmol. Determine: a. The equivalence ratio b. Ethane's lower heating value by deriving it from enthalpy of formation data. c. The heat release rate, in kw d. The mass fraction of oxygen in the products. e. The mass of CO2 emitted per 1000 hours of operation f. The mass of fuel burned per...