Marine
steam boilers are utilized in ships for steam generation to drive
the turbines. Steam generated through boilers is used to drive ship’s
main engine as well as auxiliary power generators. Marine steam
boilers are also used forpumping, heating, cooling, cleaning and
hot-water for the accommodation. Primarily all marine steam boilers
are similar in operation but usually differ by the number of
consisting drums. Drums are the horizontal pressure vessels with
domed ends. Various kind of boilers have two drums or three drums
depending on the manufacturer. Drums are connected by water tubes
which expand and contract due to thermal effects. Size of tubes also
varies depending on the manufacturer.
Previously,
scotch fire tube boilers were used in ships. These scotch fire tube
boilers were used from mid-19th century to the early 20th century. It
consists of a short horizontal cylinder as the outer shell. Lower
part of this boiler cylinder consists of one or more large furnaces.
Upper part of boiler consists of large number of small-diameter fire
tubes. Scotch fire tube boilers were powered by coal. However, many
technological advancements in marine boilers such as greater
generating capacity, higher pressure, and increased efficiency have
been made. The turbine propulsion machinery has also been modified in
recent years. Due to the increased demand, new kind of marine boilers
came into use. These new kind of marine boilers consist of an upper
steam drum connected by banks of inclined water-tubes to two or three
lower water drums. These marine boilers are powered by oil & gas
instead of coal.
Marine
steam boilers are used in all kinds and all sizes of ships. Various
bulk cargo vessels, merchant ships, navy ships, oil& gas tankers
and cruise ships use marine steam boilers. The market for marine
steam boilers is expanding rapidly, since it was first started in
mid- 19th century. Europe, North America, and Asia Pacific constitute
major part of the global market share for marine steam boilers.
Rising
number of offshore support vessels and increasing offshore drilling
and production activities have boosted global marine steam boilers
market. High levels of oil demand and the development of liquefied
natural gas as a traded commodity have increased the need for large
carrier ships. Demand for marine boilers has increased substantially
in the past decade as global shipping volumes have increased. Leisure
marine industry has also expanded in recent years which has further
augmented the demand for marine steam boilers.However, instability in
the price of transportation and declining oil prices could have a
negative impact on global marine steam boilers market. Thus,
increasing global marine industry will augment global marine steam
boilers market during the forecast period.
The
global marine steam boilers market can be segmented on the basis of
technology, application and geography.Various types of marine steam
boilers consists of smoke tube boilers, water tube boilers,
internally fired boilers, externally fired boilers, low pressure
boilers and high pressure boilers. In smoke tube boilers, smoke and
gases pass through tubes while in water tube boilers, water passes
through tubes. Internally fired boilers have internal burners while
externally fired boilers has external combustion process. Coal
powered boilers are commonly externally fired boilers. Generally,
high pressure boilers are used in ships while low pressure boilers
are used for heating needs. Marine steam boilers are used in various
applications such as driving steam ships, electric power generation
on ships, driving cargo pumps in tanker ships, warming engine in cold
temperatures, soot blow, derrick driving and ambient heating among
others. Asia Pacific is one of the lucrative markets for marine steam
boilers. In 2014, China held the highest market share followed by
South Korea, Japan, India and Australia. Europe and North America
also have a big market for marine steam boilers. Countries such as
Russia, the U.S, U.K, Demark, Norway and Germany represent a large
market for marine steam boilers.
Some
of the key players in the global marine steam boilers market are
Aalborg Industries A/S, Greens Power Ltd., KangRim Heavy Industries
Co. Ltd., Kawasaki Heavy Industries, Ltd., Miura Boiler Inc.,
Mitsubishi Heavy Industries Ltd., Osaka Boiler Mfg. Co. Ltd., SAACKE
GmbH, and Suzhou Hailu Heavy Industry Co. Ltd. among others.
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