This research study seeks to evaluate the techno-economic and environmental
implications of a variety of aero-derivative marine gas turbine cycles that have
been modelled for the propulsion of different types of merchant ships. It involves
the installation and operation of gas turbine propulsion systems in different
marine environmental conditions and aims to evaluate the effect of the
aerodynamic and hydrodynamic variations expected to be encountered by
these ships when they navigate across different climates and oceans along
selected fixed trade routes.
A combination of simulation tools developed in Cranfield University at the
Department of Power and Propulsion including the validated gas turbine
modelling and simulation code called “Turbomatch” and the “APPEM”
simulation code for the analysis and Prediction of exhaust pollutants have been
used along with the ongoing development of an integrated marine gas turbine
propulsion system simulation platform known as “Poseidon”. It is the main
objective of this research to upgrade the competence level of “Poseidon” so as
to facilitate the conduct of a variety of longer and more complex oceangoing
voyage scenarios through the introduction of an ambient temperature variation
numerical module. Expanding the existing code has facilitated the prediction of
the effect of varying aerodynamic and hydrodynamic conditions that may be
encountered by gas turbine propulsion systems when such ships navigate
through unstable ocean environments along their fixed trade routes at sea.
The consequences of operating the marine gas turbines under ideal weather
conditions has been investigated and compared with a wide range of severe
operating scenarios under unstable weather and sea conditions in combination
with hull fouling has been assessed. The techno-economic and environmental
benefits of intercooling/exhaust waste heat recuperation of the ICR model have
been predicted through the evaluation of different ship propulsion performance
parameters in a variety of voyage analysis leading to the prediction of fuel
consumption quantities, emission of NOx, CO2, CO and UHCs and the estimation of the HPT blade life as well. The different gas turbine cycle
configurations of the research were found to respond differently when operated
under various environmental profiles of the ship’s trade route and the number of
units for each model required to meet the power plant capacity in each scenario
and for each ship was assessed. The study therefore adds to the understanding
of the operating costs and asset management of marine gas turbine propulsion
systems of any ocean carrier and in addition it reveals the economic potentials
of using BOG as the main fuel for firing gas turbine propulsion plants of LNG
Carriers.
| Identifer | oai:union.ndltd.org:CRANFIELD1/oai:dspace.lib.cranfield.ac.uk:1826/7386 |
| Date | 07 1900 |
| Creators | Bonet, Mathias Usman |
| Contributors | Pilidis, Pericles, Doulgeris, Georgios |
| Publisher | Cranfield University |
| Source Sets | CRANFIELD1 |
| Language | English |
| Detected Language | English |
| Type | Thesis or dissertation, Doctoral, PhD |
| Rights | © Cranfield University 2011. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright owner. |
Page generated in 0.0025 seconds