Examination arrangement

Course content

The subject provides basic knowledge in the design and analysis of energy systems for ships. This includes various combinations of different energy forms, energy converters and energy transmissions Propulsion of ships. Characteristic characteristics of motors, gears, propellers et. Assessment and selection of various machine solutions, for example conventional diesel / diesel-electric / battery hybrid and alternative forms of energy (alternative fuels). Energy balances for machinery, power input, power for propulsion and heat output delivered in auxiliary systems. Electric power generation with diesel engine, battery solutions etc .... Review of various auxiliary systems: eg. fuel systems, lubricating oil systems exhaust systems, cooling water system, use of waste heat for energy recovery. Electric current, AC / DC systems, Voltage levels. Electrical systems with regulation, automation and instrumentation. Use of electric drives and converters: Engines, batteries, frequency converters, rectifiers, inverters, transformers etc... Combustion of fuels in engines (both fossil and renewable). Balancing chemical reaction equations and quantity calculations for air and exhaust gases including CO2. Connection between excess air in engines and content of components in exhaust gases. Heat transfer, dimensioning of heat exchangers, heat conduction, convection, radiation. evaporation, condensation. Calculation and use of heat transfer numbers, heat throughput figures (U-values). Cold and heat pump processes, significance of temperature levels, power factor, dimensioning.

Learning outcome

Knowledge: Äfter the course the student:

• can explain physical importance and use of terminology in maritime energy systems as well as units / dimensions for these systems.
• know and understand the construction of various machinery systems, propulsion and auxiliary systems for vessels with, among other things, mechanical conventional plants and diesel electric installations. Consequences of choice of machinery solutions with regard to, for example, space requirements, investment, energy consumption and operating costs.
• know and understand cyclical processes and sub-processes for different combustion engines and process plants (cold plants / heat pumps etc).
• know and understand energy balances for internal combustion engines and associated machinery systems / cooling systems.
• know and understand the structure of auxiliary systems. - know the structure and properties of electrical systems and components, including generators, motors, converters, battery systems, etc.
• know and understand the differences between different types of machinery, engines, pumps, heat exchangers and how they are used.

Skills: After the course the student are:

• able to analyze and make estimate and detail calculations / dimensioning of complex machinery, subsystems and components such as thermal motors, electric motors and converters, heat exchangers, pumps, and pipe systems.
• able to dimension propulsion systems for vessels based on speed and resistance. - be able to evaluate various machine solutions with regard to economy, performance, energy use and environmental impact.

General competence:

The student has developed communication skills on academic topics with others who have a general background in the field and with less expert environments, and know about trends in technology for components and system solutions. The student has also developed collaboration skills

Learning methods and activities

Lectures and compulsory exercises. Laboratory exercises. Project as group assignment. A minimum of 3/4 of the compulsory exercises must be approved before admission to the examination.

Compulsory assignments

• Mandatory assignment

Further on evaluation

A minimum of 3/4 of the compulsory exercises must be approved before admission to the examination.

Re-sit exam: august.

Re-sit exam can be arranged as an oral exam.

Specific conditions

Recommended previous knowledge

Mechanics and Thermodynamics