AUR31520 Certificate III in Automotive Diesel Engine Technology

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The given qualification states the basic role of individuals who are involved in performing a range of tasks on different variety of diesel engines and their related systems in the retail services of automotive industries, repairing industries and other services. To avail of this qualification, there is no mandatory requirement of legal documentation such as licensing, certification and legislation for the application procedure to the given Assignment during the time of publication. To make entries the Assignment requires no documents and sources.

The core units are necessarily required to complete and publish and it has to be relevant to the title and its contents of the Assignment. The units chosen in the category of elective units needs to be related to the performing environment and the Assignment qualification, maintenance of the entire integration of the AQF alignment without duplicating the output of another unit that has been chosen for the respective Assignment and qualification and make a final contribution to a valid vocational result output. The work health and safety policies and procedures are strictly obliged to be followed in the Assignment time. Timely submission of the documents had to be made. 

The diesel engine is named after Rudolf Diesel which is a combustion engine located internally where the ignition process of the fuel takes place by the elevation of temperature of the air in the cylinder because of the compression process mechanically hence; the diesel engine is a compression-based ignition engine. The differences in the engines by the application of spark plug igniting process of the mixture containing air and fuel for example; petrol engine which is also known as a gasoline engine or gas engine which applies the application of gaseous fuel like either a liquefied petroleum gas or natural gas. The working principle of diesel engines uses the compression method of the air. The compression of air hence increases the temperature of the air in the cylinder to a high degree that is then going through the atomization process of diesel fuel that is further injected into the combustion chamber that ignites spontaneously. When the fuel is injected into the air before the combustion process there is an uneven dispersion of the fuel this is known as a heterogeneous air-fuel mixture. By the manipulation of air and fuel ratio the toques which are produced by the diesel engine is controlled.

The diesel engine is found to be content of high thermal efficiency which is also known as the engine efficiency of any practical external and internal combustion engine because of its quite more high expansion ration and lean-burn that enables the dissipation of heat by the excess air. A very small loss in the efficiency of diesel avoids the comparison with gasoline produced indirectly since the unburned fuel is found to be absent in the process of valve overlap and hence no fuel is found to be gone directly from the injection to the exhaust. The low-speed engines can then reach effective efficiencies up to the percentage of 55%.

Diesel engines could be designed in any form either in four-stroke cycles or two-stroke cycles. The diesel engines were discovered to replace the steam engines.

Characteristics of the diesel engine are as follows:

1. Compression ignition: The ignition process takes place without any type of ignition-igniting things or apparatus for example spark lungs. This process takes place due to adiabatic compression.
2. The adjustment of toque by the quality mixture: The mass of injected fuel is solely responsible for throttling the mixture of air fuel.
3. The formation of the mixture inside the chamber of the combustion process: Fuel and Air are found to be mixed in the chamber of combustion and not in the inlet manifold.
4. The air-fuel mixture is the heterogeneous form: The dispersion of fuel and air in the combustion chamber is found to be uneven.
5. Diffusion flame: During the process of combustion, oxygen is obliged to diffuse first into the flame rather than having fuel and oxygen that is already mixed before the combustion process that would result in a premixed flame.
6. High igniting performance with fuel: The diesel engines rely on the ignition process that takes place compression, high ignition process with fuel which is known to be an ideal for proper operation of the engine, other fuel with a good resistance of knocking off. For example; petrol

The diesel which has the process of the internal combustion engine is found to be different from the gasoline that powered with Otto cycle by the application of highly compressed warm air for the ignition of the fuel despite using a spark plug.

Description of the Qualification

The given qualification states the basic role of individuals who are involved in performing a range of tasks on different variety of diesel engines and their related systems in the retail services of automotive industries, repairing industries and other services. To avail of this qualification, there is no mandatory requirement of legal documentation such as licensing, certification and legislation for the application procedure to the given Assignment during the time of publication. To make entries the Assignment requires no documents and sources.

The core units are necessarily required to complete and publish and it has to be relevant to the title and its contents of the Assignment. The units chosen in the category of elective units needs to be related to the performing environment and the Assignment qualification, maintenance of the entire integration of the AQF alignment without duplicating the output of another unit that has been chosen for the respective Assignment and qualification and make a final contribution to a valid vocational result output. The work health and safety policies and procedures are strictly obliged to be followed in the Assignment time. Timely submission of the documents had to be made.

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