What are the advantages of Internal Combustion Engine over External Combustion Engine?

 

The main advantages of an internal combustion engine over the external combustion engine are given below:

An internal combustion engine is compact and lighter:

On the other hand, an external combustion engine is bulky and heavy. Due to its small size and lightness, a petrol engine can be used to run even small vehicles like cars and scooters.

An internal combustion engine is quite safe to use:

On the other hand, an external combustion engine is not very safe to use due to the presence of highly pressurized steam in the boiler.

An internal combustion engine can be started immediately:

Mon the other hand, an external combustion engine takes a long time to start.

An internal combustion engine has higher efficiency than external combustion engine:

The efficiency of steam engine is only about 20% whereas an internal combustion engine can have efficiency up to 40%.