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Common fuels
When the composition of a fuel is known, this method can be used to derive the stoichiometric air-fuel ratio. For the most common fuels, this, however, is not necessary because the ratios are known:
Gasoline: 14.7
Natural gas: 17.2
Propane: 15.5
Ethanol: 9
Methanol: 6.4
Diesel: 14.6
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe theoretical air/fuel mixture for typical natural gas (1,000 btu/cu ft) is 9.5 cubic feet per cubic foot of natural gas. At standard pressure and temperature, this translates to about 14.2 lbs of air per pound of natural gas. These numbers are for a stoichiometric combustion and do NOT take into account excess air which, for natural gas is typically between 10% and 15%.
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What are the elements needed in the combustion reaction?
You need oxygen (O2) and some source of fuel. That source of fuel is usually, but not always, a hydrocarbon. For example the combustion of propane would be CH3CH2CH3 + O2 =>3CO2 + 4H2O.The complete combustion of a hydrocarbon will always result in CO2 and H2O.
What is the optimum ratio of air to ethyne for complete combustion?
The properly balanced combustion reaction is given by (don't care about N2 on the product side) C2H2 + 5/2 (O2 + 3.75N2) -> 2CO2 + H2O + N2 So, the molar air to fuel ratio for complete combustion is 2/5.
What is the air to fuel ratio for LPG?
17:1 for a mixture of 50% propane and 50% butane. propane-butane percentage differ from country to countr, so aslo the air to fuel ratio is a little diferetn.
What is made when a fuel is burnt?
It would depend on the fuel and whether combustion is complete or not. For typical hydrocarbon fuels (e.g., natural gas, propane, gasoline, etc.) the products of complete combustion are carbon dioxide (CO2) and water (H2O).However, if combustion is not complete, carbon monoxide (CO) and hydrogen (H2) will also be produced. In addition, depending on the fuel (whether it has sulfur or not), oxides of sulfur (SOx) may be produced. Finally, oxides of nitrogen (NOx) are also usually produced, particularly in vehicle engines.
What substance's complete combustion produces carbon dioxide and water?
candle wax. The wax is a hydrocarbon (hydrogen+carbon) and as it burns, it rects with oxygen and hydrogen in the air. Hydrogen+hydrogen+oxygen=H2O (water) Carbon+oxygen+oxygen=CO2 (carbon dioxide) Other hydrocarbons include petrol, diesel, oil, propane etc
How is the combustion of propane similar to cellular respiration?
If the combustion of propane isn't getting enough oxygen it is incomplete and it would be a smokey yellow flame. For humans we depend on chemical potential energy from plants and animals. Propane combustion and cellular respiration are different because propane combustion depends on oxygen to fuel it and humans depend on chemical potential energy to fuel themselves.
What are the elements needed in the combustion reaction?
You need oxygen (O2) and some source of fuel. That source of fuel is usually, but not always, a hydrocarbon. For example the combustion of propane would be CH3CH2CH3 + O2 =>3CO2 + 4H2O.The complete combustion of a hydrocarbon will always result in CO2 and H2O.
What is the optimum ratio of air to ethyne for complete combustion?
The properly balanced combustion reaction is given by (don't care about N2 on the product side) C2H2 + 5/2 (O2 + 3.75N2) -> 2CO2 + H2O + N2 So, the molar air to fuel ratio for complete combustion is 2/5.
How can we reduce the combustion of fossil fuels?
You can change the air-to-fuel ratio to get less optimal combustion.
What is cutoff ratio?
Cutoff ratio is not the ratio of the volume of the cylinder at the end of combustion to the start of the combustion process in a diesel engine. actually cutoff ratio means point at which fuel injected for a period and fuel delivery is stopped at required instant -is called cutoff ratio.............
Is hydrocarbon paraffin or propane is better fuel?
I would have to say cyclopropane because of increased bond strain.
What is made when a fuel is burnt?
It would depend on the fuel and whether combustion is complete or not. For typical hydrocarbon fuels (e.g., natural gas, propane, gasoline, etc.) the products of complete combustion are carbon dioxide (CO2) and water (H2O).However, if combustion is not complete, carbon monoxide (CO) and hydrogen (H2) will also be produced. In addition, depending on the fuel (whether it has sulfur or not), oxides of sulfur (SOx) may be produced. Finally, oxides of nitrogen (NOx) are also usually produced, particularly in vehicle engines.
What is the air to fuel ratio for LPG?
17:1 for a mixture of 50% propane and 50% butane. propane-butane percentage differ from country to countr, so aslo the air to fuel ratio is a little diferetn.
1.5 kg of fuel is burned at a bbq how much heat is released in kcal using propane?
((1.5 x 1000)/molecular weight of propane) x molar heat of combustion of propane.
What is the definition of combustion efficiency?
The ratio of optimum energy derived from the minimum use of fuel energy during combustion.
Is propane an oxidizing agent?
No it is not. Propane can be used as fuel during oxidation reaction however it is not an oxidizing agent. In a redox reaction such as combustion, propane acts as a reducing agent. Common agents are O2 and O3.
When burning fuel what are the reactants?
The burning of fossil fuels are a combustion reaction. The reaction for the combustion has the reactants of propane (C3H8) and oxygen (O2). The combustion reactions products are carbon dioxide (CO2) and water (H2O).
