Although there is an abundance of seawater available, marine diesel engines do not use it directly to keep the hottest parts of the engine cool or any other piece of machinery. This is because of the corrosion caused in the cooling water spaces by seawater; the salts would be deposited on the cooling surfaces interfering with the heat flow. Instead, the water circulated around the engine is fresh water. The freshwater is cooled using seawater.

During this course you will gain an understanding of cooling systems, in particular freshwater central cooling systems, looking at both the LT and HT circuits. You will explore the main components of the system and how the quality of water is maintained through testing, treatment and cleaning.

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Course Author

Fairwater Education

Fairwater Education provides expertise in education, specialising in all aspects of maritime education and training needs across the sector. With experience across all educational settings, Fairwater Education aims to support the development of all individuals and organisations wishing to engage with continuous professional development. In order to achieve this, our team includes qualified and experienced educators, maritime industry backgrounds, qualifications to Masters Level and professional body Fellowships.

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