FUEL AND COMBUSTION:- KNOCKING

Jun 17 • Notes • 2081 Views • 4 Comments on FUEL AND COMBUSTION:- KNOCKING

FUEL AND COMBUSTION:- KNOCKING

 KNOCKING:-

Knocking is sharp sound produced due to the premature combustion of the air-fuel mixture in the cylinder.It causes overheating of the spark plug points, erosion of the surface of the combustion chamber and rough and inefficient operation.It can be avoided by adjusting the compression ratio and burning time of the engine and by burning gasoline of higher octane number.

FUEL AND FUEL COMSUMPTION:-

It is known that something which can be burned and the energy released from that burn can be converted into other form of energy like mechanical energy.

Fuel comsumption gives the exact measure of amount of pounds used to produce horse power that an engine produces.

COMBUSTION:-                                                                              

It is a sequence of exothermic chemical reactions taking place between  a fuel and an oxidant with the production of heat and light in the form of flames

 ADVANTAGES OF FUELS:-

1) Biomass reduces required for fossil fuels which helps in the production of heat, stream and    electricity for agricultural and household use.

2) The use of wasste material generally reduce disposal and provides more space for other purposes.

3) When biomass fuel is burned CO2 is released and thus plants takes it in.

DISADVANTAGES OF FUELS:-

1)    Agricultural waste will not be produced if there is no growth of basic crops.

2)    Additional work and more efforts are required for harvesting method.

3)    For some cases it is the major cause of pollution.

QUESTIONS WITH ANSWERS

1)  WHAT DO YOU MEAN BY FUEL?

Ans:- It is known that something which can be burned and the energy released from that burn can be converted into other form of energy like mechanical energy.

2) WHAT DO YOU MEAN BY FUEL CONSUMPTION?

Ans:- It is known that something which can be burned and the energy released from that burn can be converted into other form of energy like mechanical energy.

Fuel combustion gives the exact measure of amount of pounds used to produce horse power that an engine produces.

3) WHAT IS COMBUSTION?

Ans:- It is a sequence of exothermic chemical reactions taking place between  a fuel and an oxidant with the production of heat and light in the form of flames

4)    WHAT ARE THE ADVANTAGES OF FUEL?

Ans:- 1) Biomass reduces required for fossil fuels which helps in the production     of heat, stream and    electricity for agricultural and household use.

2) The use of wasste material generally reduce disposal and provides more space for other purposes.

3) When biomass fuel is burned CO2 is released and thus plants takes it in.

5) WHAT ARE THE DISADVANTAGES OF FUEL?

Ans:-1) Agricultural waste will not be produced if there is no growth of basic  crops.

2)Additional work and more efforts are required for harvesting method.

3)For some cases it is the major cause of pollution.

GATE Syllabus-

1.Gate Syllabus for Metallurgical Engineering 2014

2. Gate Syllabus for Mining 2014.

3. Gate Syllabus for Production and Industrial Engineering 2014

IES Syllabus-

1. IES Syllabus General Ability

advantages of fueldisadvantages of fuelFUEL AND COMBUSTION:- KNOCKING

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