Which of the following engine can be associated with heterogeneous combustion?a)Spark ignitionb)Compression ignitionc)Both Spark ignition and Compression ignitiond)Neither Spark ignition nor Compression ignitionCorrect answer is option 'B'. Can you explain this answer?

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Which of the following engine can be associated with heterogeneous combustion?

a)
Spark ignition
b)
Compression ignition
c)
Both Spark ignition and Compression ignition
d)
Neither Spark ignition nor Compression ignition

Correct answer is option 'B'. Can you explain this answer?

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Which of the following engine can be associated with heterogeneous com...

IC Engines may be classified based on the state of air-fuel mixture present at the time of ignition in the engine cycle, the type of ignition employed and the nature of combustion process after ignition of the air-fuel mixture.

Physical State of Mixture

Homogeneous Charge:
- Premixed outside (conventional gasoline and gas engines with fuel inducted in the intake manifold)
- Premixed in-cylinder: In- cylinder direct injection and port fuel injection
Heterogeneous Charge (Diesel Engine)

Ignition Type

Positive source of Ignition e.g., spark ignition
Compression ignition

Mode of Combustion

Flame propagation
Spray combustion

The combustion process in a diesel engine is heterogeneous—that is, the fuel and air are not premixed prior to initiation of combustion. Because of heterogeneous material low speed and low pressure is generated as compared to SI engine where homogenous mixture of fuel is used

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Which of the following engine can be associated with heterogeneous combustion?a)Spark ignitionb)Compression ignitionc)Both Spark ignition and Compression ignitiond)Neither Spark ignition nor Compression ignitionCorrect answer is option 'B'. Can you explain this answer?

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