Feature 1 | Tankers of The 21sT CenTury
company’s ‘MAX-concept for exceptional The double hull surrounds a cargo space are derived from two oil-fired and two exhaust-
cargo intake and safety while maintaining a divided by corrugated bulkheads into five gas boilers.
low fuel consumption’. pairs of tanks arranged for clean and dirty The aft end of the vessel is characterised
Stena P-MAX ships are designed and oil products, and crude oil. The corrugated by an expansive transom stern, above which
constructed for a fatigue life of 40 years. bulkheads reduce the remaining amount of a large deckhouse is positioned between
They have several features for minimising cargo onboard after discharge. Epoxy coatings two widely-spaced funnels and topped by a
the risk of casualties, mishaps or incidents. have been applied to the tanks, while the cargo wheelhouse offering 360deg vision.
Double hull, optimal corrosion control, piping and heating coils are of stainless steel. Other important inclusions to the design
two enginerooms with full fire and water The ship’s design conforms to the DNV RPS are compliance with Finnish-Swedish Ice Class
integrity, as well as redundant and separate (Redundant Propulsion Separate) notation. 1B requirements.
systems for propulsion are said to be vital Main machinery is situated in independent Stena points out that safety is ‘ultimately an
as safeguards for proactive safety. Added to port and starboard rooms, separated by environmental issue’. Separate fuel tanks offer
this is the fact that the ship type exhibits high fireproof and watertight bulkheads. Each the option of transporting environmentally-
levels of manoeuvrability and an integrated compartment contains propelling machinery friendly fuel in sensitive areas.
bridge layout to facilitate safe navigation in comprising a MAN B&W 6S46MC-C engine As noted, Stena P-MAX tankers are
narrow waters. delivering 7860kW MCR at 129rev/min, and designed to carry crude oil as well as clean
Like other MAX vessels, Stena Perros directly coupled with an FP propeller fitted in or dirty products. By implementing ETC
exhibits an exceptionally wide beam, of 40m, front of a plain rudder. (Effective Tank Cleaning), a certified effective
where comparable ships will typically feature a Each engine is served by separate fuel supply cleaning system and cargo tanks, changing
beam of 32.2m. The added dimension means and auxiliary systems, and also independent from dirty to clean products can be achieved
that the 182.9m long P-MAX tankers can monitoring and control systems. A total of in a short time, thus minimising the risk of
load up to 30% more cargo than a standard four diesel-alternator sets are installed, each contamination. This also means that the tanks
MR tanker at the same draught. producing 1081kVA, and steam requirements can be cleaned in the minimum of time. NA
Brunvoll Offshore Bourbon Mistral 2008:Brunvoll James Cook 19-02-08 11:13 Side 1
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telephone + 47 71 21 96 00
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e-mail: office@
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www.brunvoll.no
28 The Naval Architect March 2008
NA Mar 08 - p26+
28.indd 28 10/03/2008 12:00:41
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