For a large number of countries, the task of Arctic exploration and
implementation of year-round navigation along the Northern Sea
Route, which has become a reality today due to global warming, has
become increasingly relevant in recent years. In turn, its solution
requires the creation of a multi-purpose Arctic fleet, consisting
of modern icebreaker ships with efficient and fault-tolerant
propulsion systems, fully compliant with the specific operational
conditions of the Arctic. In the last decade, due to the
significantly increased interest to the new transport connection
between West Europe and the Far East and the growth of various
cargo traffic (oil, gas, containers, etc.) by the Northern Sea
Route, the need of a significant increase of quantity and capacity
of icebreaker cargo fleet has appeared. In order to maintain
year-round navigation in the Northern Sea Route in the next few
years, ships for various purposes are planned to be built
(multipurpose and universal ships, supply ships, lighters, oil and
gas tankers, hovercrafts, and others), which are intended for
operation in the seas of the Arctic basin. Comprehensive efficiency
of transportation process in the Arctic seas depends not only on
the planning and co-ordination activities of the fleets and
harbors, but also on the ships' technical characteristics. It means
that icebreaker ships should have appropriate special features,
accordingly to the requirements for navigation in the Arctic ice
conditions. The results of the presented scientific research, which
are based on statistical operational data from the 1980s,
determined the main directions for development of today's modern
icebreaker ships designed for Arctic operation in specific ice
conditions. Considering that the projects of year-round navigation
along the Northern Sea Route, which have become a reality today,
the task of creating corresponding ships with highly reliable and
fault-tolerant electric propulsion systems is extremely relevant
today. The proposed systematic methodology of the choice of the
appropriate type of propulsion system for icebreaker cargo Arctic
ships was confirmed by many years of successful operational
experience in the ice navigational conditions. During the design
process of icebreaker ships, the question about choice of ship's
propulsion system arises, taking into account a power-producing
unit and propeller, coupled with the frame of the ship. The correct
solution of this problem has a significant value for the further
operation of the ship. The aim of this book is to provide a
comprehensive presentation of multicriteria operational efficiency
analysis of the competing ship's propulsion systems that would be
most suitable for icebreaker Arctic ships, taking into account the
real operating conditions of ice navigation.
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