Marine Auxiliary Machinery - Heat Exchangers and Air Compression

Description

Marine Auxiliary Machinery - Heat Exchangers and Air Compression is a free online course that provides an extensive guide to the various types of heat exchangers and compressors used onboard describing the basic principles of heat circulation of fluid in adjacent spaces. The course also explains the various types of heat exchangers, necessary onboard and also describes the compressed air equipment, as part of the auxiliary equipment on board. The heat exchangers allow heat transfer between fluids. They are used in widespread applications, such as fuel heating, domestic water heating, lubricating oil cooling, charge air cooling, and condenser cooling. In marine engineering, compressors are designed to serve the various needs using air under pressure. The various types and sizes of the compressor are available for the main air compressor, it is mostly the reciprocating tandem type that is used. Learn about the basic principles and layout including the air receivers will help you operate the air compressors efficiently. This course explains how heat exchangers carry abrasive and corrosive fluids that are exposed to atmospheric corrosion along with general wear and tear, including how they sometimes operate at extremely high temperatures.

The course explains how heat flows from an object with a higher temperature to an object with a lower temperature. In general, wherever there is a heat transfer between two fluids across a medium, it is important to know the quantity of heat transferred to optimize the performance of the heat exchanger by adjusting the factors that govern them. This course describes the typical shell-type exchanger which consists of a series of tubes, through which one of the fluids runs. You will learn about the method in which fluid runs over the tubes to be heated or cooled. The course explains how heat transfer takes place due to the difference in temperature between the two fluids. You will be introduced to the general wastages of materials due to corrosion and erosion. You will learn how to reduce the thickness of the tubes, which can lead to leakages and reduce the strength of the tubes. These wastages come with the normal operation of the heat exchangers. You will be taken through plate heat exchangers and how they work using the same principle as shell and tube type heat exchangers.

Finally, this free online course describes the main air compressors including the ones that are of the reciprocating type and the process in which high-pressure air is developed. The control air compressors are used for low-pressure air requirements of control systems. Screw compressors are used in some ships for low-pressure air requirements like service air for the deck, where a large amount of air will be consumed. This course explains in great detail how compressed air should be free of moisture and oil. The course describes air bottles that are drained periodically to remove condensed water and oil mixture. The course also explains the principles of the air drier as well as its role in the control air system in removing moisture completely. You will learn how certain control air compressors and piston rings are made of self-lubricating materials so that the supplied air will be oil-free. You would be taken through the classification of air compressors including positive displacement and dynamic type air compressors. If you are a student, researcher, marine engineer, and you are seeking to learn about heat exchangers and compressors, then register for this course today and enhance your knowledge base as well as your career skills.