Common questions

What kind of air is needed for complete combustion?

What kind of air is needed for complete combustion?

The amount of air required to supply just enough oxygen for complete combustion is called the a) exact air b) perfect air c) primary air d) theoretical air e) secondary air D Combustion air openings are required by code and combustion air can be said to be

How does combustion occur in an S I and C i engine?

1. COMBUSTION IN S.I & C.I ENGINES 2. Combustion may be defined as a relatively rapid chemical combination of hydrogen and carbon in fuel with oxygen in air resulting in liberation of energy in the form of heat. Following conditions are necessary for combustion to take place 1.

What do you need to know about fuel induction?

This service known as fuel induction is nothing but a particular type of service and maintenance procedure for your car’s engine. It’s a process of cleaning the electronic throttle body, air intake valves and the fuel injectors which you can find in electronically fuel injected vehicles and the newer vehicles.

When does fuel ignite in a combustion chamber?

18. 1.Ignition Delay period The fuel does not ignite immediately upon injection into the combustion chamber. There is a definite period of inactivity between the time of injection and the actual burning this period is known as the ignition delay period.

When is the combustion of a fuel complete?

THEORETICAL AND ACTUAL COMBUSTION PROCESSES A combustion process is complete if all the combustible components of the fuel are burned to completion. Complete combustion: If all the carbon in the fuel burns to CO 2 , all the hydrogen burns to H 2 O, and all the sulfur (if any) burns to SO 2

When do you use excess air in combustion?

Excess Air In almost all practical combustion systems it is necessary to use more than the stoichiometric amount of air, to ensure complete combustion. This additional air is referred to as excess air, and is denoted as a percentage or fraction over the stoichiometric amount.

What kind of PM is produced by fuel oil combustion?

In general, filterable PM emissions depend on the completeness of combustion as well as on the oil ash content. The PM emitted by distillate oil-fired boilers primarily comprises carbonaceous particles resulting from incomplete combustion of oil and is not correlated to the ash or sulfur content of the oil.

Can a higher efficiency be achieved by proper fuel preparation?

Question 46 : Higher efficiency in the combustion of solid fuel can not be achieved by proper fuel preparation. keeping the flue gas exhaust temperature very high. adopting efficient-fuel firing technique & equipment. supplying correct quantity of combustion air.

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Ruth Doyle