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| Siemens Provides
Hypochlorination Systems for LNG Carriers |
 |
| Leading
shipbuilder Samsung Heavy Industries (SHI) has awarded Siemens Water
Technologies an order for 14 Electrocatalytic Chloropac sodium
hypochlorite generating systems. SHI, in turn, will install the
systems on separate liquefied natural gas (LNG) carriers for three
petrochemical companies. The Chloropac systems from Siemens will
help prevent marine growth in the main components of the LNG
carriers' seawater cooling systems, including sea chests, piping,
coolers, and heat exchangers. The first system was delivered to SHI
in May, with subsequent deliveries scheduled throughout 2007 and
2008. |
|
Vessel capacities range from 155,000
m3 to 266,000 m3. The Chloropac systems were specified for their
ability to treat varying seawater flowrates of 2800 m3/h to 5000
m3/h, with continuous sodium hypochlorite dosing levels of 0.2 ppm
to 0.5 ppm. The clients chose the Chloropac systems based on their
reliability, easy maintenance, and favorable life cycle cost.
Electrocatalytic Chloropac systems cost-effectively control
micro-fouling organisms (slime, algae, and seaweed) as well as
macro-fouling organisms (barnacles, mussels, clams, and hydroids).
By passing electric current through the seawater, Chloropac systems
convert sodium chloride into sodium hypochlorite, the active
ingredient required for disinfection, water sterilization and
organic fouling prevention. Siemens-designed concentric tubular
electrode technology helps prevent biological fouling and produce,
in situ, a dilute solution of sodium hypochlorite from seawater for
direct injection into the ship's water circuit. System controllers
may be adjusted manually or automatically to control the amount of
hypochlorite being produced - a safe, effective alternative to
handling and storing hazardous bulk chlorine or liquid sodium
hypochlorite.
Water treatment equipment is an important part of Siemens Industrial
Solutions and Services (I&S) Group's complete marine technology
product offering. Siemens also specializes in the design,
manufacture and commissioning of electrical equipment for all types
of merchant vessels, naval vessels and submarines worldwide. This
includes turnkey projects and conversions and covers the entire
ship's life cycle. |
|
| www.siemens.com/marine |
| www.siemens.com/water |
Posted
July 2, 2007
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