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Module

MAR3037 : Marine Engineering III

  • Offered for Year: 2020/21
  • Module Leader(s): Dr Alan J Murphy
  • Owning School: Engineering
  • Teaching Location: Newcastle City Campus
Semesters
Semester 1 Credit Value: 20
ECTS Credits: 10.0

Aims

To develop knowledge and understanding of:

A1 - Refrigeration systems for cargo preservation, gas liquefaction and air conditioning.
A2 - Air conditioning systems.
A3 - Design, propulsion and operation of Liquefied Natural Gas (LNG) Carriers.
A4 – application of theory in practice for deeper comprehension of marine engines, Engine balancing and vibrations.

Outline Of Syllabus

Re-establishment of basic operational principles of 2 and 4-stroke engines; history of engines. - Engine types, classification of marine engines; specific design details; Preliminary design calculations, engine thermodynamics; Exhaust and flue gas analysis; Exhaust emission control; Fuels and fuel systems, combustion chamber and valve design considerations; Lubricating oil Properties and treatment.; Balancing, noise and vibration: calculation of torsional vibration modes and natural frequencies; Engine test analysis.

Transport of liquefied gases: Sea transport of LNG, Types of LG carriers, Insulation, Containment systems, Boil-Off treatment, LNG propulsion systems, steam engines, gas turbines and dual-fuel diesel engines.
marine refrigeration and air-conditioning; theoretical concepts; practical applications and hardware; carriage of LNG; implications to machinery system; dual fuel machinery; safety; economics of reliquefaction; Refrigeration for cold-storage and air-conditioning; Revision of steady flow energy equation. Vapour compression cycles, flash chamber cycle; Compressors, evaporators and condensers. Refrigerants and the ozone layer; Absorption refrigerators.

Refrigeration for gas liquefaction: Gas compression cycles, use of recuperator, multi-stage refrigeration, the Linde process.

Air conditioning: Humidity definitions, the psychometric chart, wet and dry bulb temperature, comfort charts, types of air conditioning system, Gibbs-Dalton law, calculations involving moisture removal and addition, recirculation ratios and contact factors.

Teaching Methods

Module leaders are revising this content in light of the Covid 19 restrictions.
Revised and approved detail information will be available by 17 August.

Assessment Methods

Module leaders are revising this content in light of the Covid 19 restrictions.
Revised and approved detail information will be available by 17 August.

Reading Lists

Timetable