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Marine Technology - Propulsion Systems, Safety and Environment

Language

English

Course format On-site
Date 2020-08-17 - 2020-12-20

Introduction to basic design of power systems for ships and offshore installations. Power consumption properties and operating profiles as basis for design and performance analysis of machinery systems.

Characteristic properties, design and typical limitations of prime movers as diesel-, gas engines and gas turbines. Main factors affecting power, efficiency and exhaust emissions. Conventional and alternative marine fuels and principles of energy conversion by combustion. Air pollution and existing regulations.

Understanding, application, and analysis of electric power systems and electric machines in propulsion and power generation systems onboard ships and general marine systems. Basic introduction to electric generators, converters, motors and electric drives including control.

Understanding and knowledge of risk, safety, reliability, and maintenance for technical systems. Methods for calculating and assessing basic system availability, and life cycle cost analysis. Introduction to concepts, theory, methods and models.

Prerequisites

Recommended previous knowledge

TEP4110 Fluid Mechanics, TEP4120 - Engineering Thermodynamics 1, TFY4104 Physics, TMR4245 Statistics.

Learning outcomes

The courses in Marine Technology, namely the Marine basics, Structures, Hydrodynamics and Propulsion systems, safety and environment shall together enable the students to describe and understand the different aspects of marine technology and be able to carry out necessary engineering tasks related to design, construction and operation of marine systems. In addition, they shall give the student an overview of tools and methods for carrying out such work and certain training within communication skills building and teamwork. Marine Technology - Propulsion systems, safety and environment shall provide the understanding of modes of operation and performance with emphasis on design and operation of main machinery, electric power generation, distribution and electric propulsion, as well as the reliability analysis of machinery systems.

Upon completing the course the student should be able to:

Electric Propulsion Systems:

At the end of this section, the students are expected to:

  • Have basic knowledge of the design and application of shipboard electric power and propulsion systems and marine installations.
  • Understand basic electrical engineering, basic circuit elements, circuit characteristics, and circuit laws.
  • Analyze simple electric networks including AC circuits.
  • Understand power flow in single-phase and three-phase AC networks; calculate power components; describe the power flow in marine electric power systems and shipboard distribution systems.
  • Understand the principle of electric machines including transformers and rotating machines; describe different topologies of electric machines applicable to marine propulsion, distribution and marine power generation.
  • Understand and explain the principles of electric motors, motor drives and control of electric propulsion.

Main machinery:

At the end of this section, the students are expected to be able to:

  • Quantify the power requirement of a certain vessel at various phases of operation and establish operating profiles. Estimate fuel consumption and exhaust emissions based on a specified operating profile, and also evaluate how changes in the operating profile may influence fuel consumption and exhaust emissions.
  • Understand basic principles of combustion and such definitions as heating value, excess air ratio, lean and fuel-rich combustion. Perform simple computations of the combustion process based on energy and mass balance.
  • Describe and analyze working cycles of internal combustion engines and gas turbines by means of p-V and T-s diagrams. Calculate simple thermodynamic cycles in order to evaluate energy utilization and produced work.
  • Explain the main components of the machines, the principles of energy conversion and typical operating characteristics of diesel engines and gas turbines. Explain terms used for describing performance of diesel engines and gas turbines related to power, energy utilization and exhaust emissions.
  • Compute, by means of mass and energy balance and simple process models, how performance of diesel engines and gas turbines is affected by external factors (atmospheric conditions, fuel quality) and internal factors (compression ratio, charge air pressure/pressure ratio in compressor, inlet temperature at turbine, etc.)

RAMS:

At the end of this section, the students are expected to:

  • Understand and be able to quantify component reliability.
  • Understand and calculate system reliability with reliability block diagrams and structure functions.
  • Understand and utilize fault tree analysis to characterize reliability and risk of technical systems.
  • Understand the meaning of system availability and how it can be calculated for complex and redundant systems.
  • Understand basic principles for maintenance management and know different types of maintenance.
  • Be able to calculate how system reliability can be improved through preventive maintenance.
  • Understand the system life cycle and be able to use economic criteria, such as net present value, internal rate of return, and payback period, to assess design concepts and maintenance strategies.
  • Be able to use basic methods of risk analysis.

Files/Documents

ISCED Categories

Conservation and environmental management
Machinery and operators
Naval engineering
Near- and offshore constructions
Safety