what is heat engine? write its types.
Answers
Explanation:
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In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
types
There are two main types of heat engines: external combustion and internal combustion: In an external combustion engine, the fuel burns outside and away from the main bit of the engine where the force and motion are produced. ... In an internal combustion engine, the fuel burns inside the cylinder.
your answer mate
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Heat engines are categorized into two types as follows: external combustion engine and internal combustion engine. In the next section, let us look at the two types in detail.
Types of Heat Engine
As discussed, heat engines are classified into two main types as,
Internal Combustion Engines
This process includes the combustion of a fuel that takes place within the system. These types of engines take place where the fuel is burnt in the engine or where the fossil fuel combustion occurs. Pistons are mostly used in the internal combustion type of heat engines. These pistons move up and down within the cylinders that are present in the heat engines. When a single motion of a piston move in the upward or downward direction inside the cylinder is known as the stroke. For Example – Mostly Cars have four-stroke internal combustion heat engines that consist of an Intake stroke, power stroke, combustion stroke, and exhaust stroke.
External Combustion Engines
These type of heat engines takes where the fuel is burnt outside the engine or where the fuel combustion occurs outside the engine. It is a heat engine where a working fluid is included internally and heated by combustion in an external source through the engine wall. This fluid then produced motion and usable work by expanding and acting on the mechanism of the engine