Forklift Engine - Likewise known as a motor, the engine is a tool that can change energy into a useful mechanical motion. When a motor transforms heat energy into motion it is normally known as an engine. The engine could come in various types like for example the internal and external combustion engine. An internal combustion engine normally burns a fuel with air and the resulting hot gases are used for generating power. Steam engines are an illustration of external combustion engines. They make use of heat so as to produce motion together with a separate working fluid.
To be able to produce a mechanical motion via various electromagnetic fields, the electrical motor has to take and create electrical energy. This type of engine is very common. Other types of engine can function making use of non-combustive chemical reactions and some would utilize springs and function through elastic energy. Pneumatic motors are driven through compressed air. There are other designs based on the application required.
ICEs or Internal combustion engines
Internal combustion occurs whenever the combustion of the fuel combines together with an oxidizer in the combustion chamber. In the IC engine, higher temperatures would result in direct force to certain engine components like the pistons, turbine blades or nozzles. This force produces functional mechanical energy by moving the component over a distance. Usually, an internal combustion engine has intermittent combustion as seen in the popular 2- and 4-stroke piston motors and the Wankel rotating motor. The majority of gas turbines, rocket engines and jet engines fall into a second class of internal combustion engines called continuous combustion, which takes place on the same previous principal described.
External combustion engines such as Stirling or steam engines vary greatly from internal combustion engines. External combustion engines, wherein the energy is delivered to a working fluid like for instance liquid sodium, hot water and pressurized water or air that are heated in some sort of boiler. The working fluid is not mixed with, consisting of or contaminated by combustion products.
Various designs of ICEs have been created and placed on the market with numerous strengths and weaknesses. If powered by an energy dense gas, the internal combustion engine delivers an effective power-to-weight ratio. Although ICEs have been successful in several stationary applications, their real strength lies in mobile utilization. Internal combustion engines control the power supply utilized for vehicles such as aircraft, cars, and boats. A few hand-held power gadgets use either battery power or ICE equipments.
External combustion engines
An external combustion engine utilizes a heat engine wherein a working fluid, like for example steam in steam engine or gas in a Stirling engine, is heated by combustion of an external source. This particular combustion takes place via a heat exchanger or through the engine wall. The fluid expands and acts upon the engine mechanism that produces motion. Afterwards, the fluid is cooled, and either compressed and used again or thrown, and cool fluid is pulled in.
Burning fuel together with the aid of an oxidizer to be able to supply the heat is referred to as "combustion." External thermal engines may be of similar operation and configuration but use a heat supply from sources like for instance exothermic, geothermal, solar or nuclear reactions not involving combustion.
The working fluid can be of whichever composition. Gas is the most common kind of working fluid, yet single-phase liquid is occasionally used. In Organic Rankine Cycle or in the case of the steam engine, the working fluid varies phases between liquid and gas.
Click to Download the pdf