Forklift Engine - Likewise known as a motor, the engine is a device that can convert energy into a functional mechanical motion. When a motor changes heat energy into motion it is normally referred to as an engine. The engine can come in various types like for instance the external and internal combustion engine. An internal combustion engine normally burns a fuel utilizing air and the resulting hot gases are utilized for creating power. Steam engines are an illustration of external combustion engines. They make use of heat so as to produce motion along with a separate working fluid.
The electric motor takes electrical energy and produces mechanical motion through varying electromagnetic fields. This is a common type of motor. Several types of motors are driven through non-combustive chemical reactions, other kinds could utilize springs and function through elastic energy. Pneumatic motors are driven by compressed air. There are other designs based on the application needed.
Internal combustion engines or ICEs
An internal combustion engine occurs whenever the combustion of fuel mixes with an oxidizer in a combustion chamber. Inside an internal combustion engine, the increase of high pressure gases combined along with high temperatures results in applying direct force to some engine components, for example, nozzles, pistons or turbine blades. This force produces functional mechanical energy by means of moving the part over a distance. Usually, an ICE has intermittent combustion as seen in the popular 2- and 4-stroke piston engines and the Wankel rotary motor. Nearly all gas turbines, rocket engines and jet engines fall into a second class of internal combustion motors called continuous combustion, that takes place on the same previous principal described.
External combustion engines like for instance steam or Sterling engines differ very much from internal combustion engines. External combustion engines, wherein the energy is delivered to a working fluid like for example pressurized water, liquid sodium and hot water or air that are heated in some kind of boiler. The working fluid is not mixed with, having or contaminated by burning products.
A variety of designs of ICEs have been developed and placed on the market with various strengths and weaknesses. If powered by an energy dense fuel, the internal combustion engine provides an efficient power-to-weight ratio. Though ICEs have been successful in various stationary utilization, their actual strength lies in mobile applications. Internal combustion engines control the power supply for vehicles like for example boats, aircrafts and cars. A few hand-held power tools use either battery power or ICE equipments.
External combustion engines
An external combustion engine is comprised of 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 combustion takes place through a heat exchanger or through the engine wall. The fluid expands and acts upon the engine mechanism which produces motion. Afterwards, the fluid is cooled, and either compressed and used again or disposed, and cool fluid is pulled in.
Burning fuel using the aid of an oxidizer so as to supply the heat is referred to as "combustion." External thermal engines could be of similar use and configuration but utilize a heat supply from sources like for instance exothermic, geothermal, solar or nuclear reactions not involving combustion.
Working fluid can be of whichever composition, though gas is the most common working fluid. Every so often a single-phase liquid is occasionally utilized. In Organic Rankine Cycle or in the case of the steam engine, the working fluid adjusts phases between liquid and gas.
Click to Download the pdf