Page 44: of Maritime Reporter Magazine (May 2001)

Vessel of the MtB

Carnivals New Spirit

The latest testament to Finnish cruise ship building prowess is embodied in the recently delivered Carnival Spirit, a ship that will become well-known not only for what it contains within, but for what it does not let out.

Carnival Spirit, newbuilding no. 499, was built at Kvaerner Masa-Yards'

Helsinki New Shipyard for Carnival

Cruise Lines, and is the second ship in a series of "Panamax-Max" size ship. (The first, Costa Atlantica for Costa

Crociere, was delivered in June 2000).

Interestingly, the ship is unique because of its similarity to other vessels. The joint development of the Spirit-class series actually started in the mid-1990s, with KMY presenting its "Project 8000" vision to Carnival in 1994. Carnival's

Joe Farcus then presented layout sketch- es of the new design, and the yard worked on fitting them on the lower part of the existing Fantasy-class design, as a common basis for a new Panamax design. Thus the idea of common plat- form ships for three different Carnival brands — Carnival Cruise Lines, Hol- land America Line, and Costa Crociere - was born, a solution which included similar hull structure, similar machinery arrangement and similar technical spaces. The common system obviously offered to Carnival attractive, and more cost-efficient, means of maintaining the

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While a walk through the ship allows one to quickly know that there is nothing else like this afloat - Farcus intermingled a variety of interpreted styles of Chi- nese, Art Deco and Egyptian, to name just a few - the parent company revels in the fact that the technical requirements of its burgeoning fleets are more easily managed.

No Smoking

While the size is impressive, the vessel is most significant, however, as it is the first example of a joint Carnival/Wart- sila NSD project to develop "smokeless" diesel engines, an environmental man- date increasingly heard from the resi- dents of the natural environs within which cruise ships operate.

The ship is powered by a diesel-elec- tric machinery arrangement, consisting of six Wartsila NSD 9L46D diesel engines, providing a total power of 62,370 kW. Each is connected to an alternator that produces electricity to the ship's main electric network at 11 KV 60

HZ 3 phase. Power from the main switchboard is supplied to 440V switch- boards via three transformers to service auxiliary machinery and ships services.

A separate MG stabilized power system is supplying lighting and small con- sumer needs. The "EnviroEngine" tech- nology, initially installed on two of the diesel engines, uses common rail fuel injection, giving high injection pressures at all engine speeds to ensure clean com- bustion with no visible smoke emission.

According to Wartsila NSD's well- regarded R&D maven Daniel Paro, the

EnviroEngine took just 14 months from the company's initial commitment to the project to first installation.

Carnival Spirit is propelled through the water to a service speed of 22 knots via a pair of 17.6 MW Azipod propul- sion units. In addition, maneuverability is aided by three 1.91 MW bowthrusters.

In addition, the ship features a high level of redundancy to ensure safe oper- ation. The machinery plants are divided into two independent parts. This includes main machinery plant, fuel tanks, electric machinery, auxiliary sys- tems, ventilation, piping, cabling and control and automation, basically from "fuel storage tanks to the propellers." It also features divided redundant main electric distribution and monitoring

Carnival's longtime desinger, Joe Farcus, meld- ed a variety of styles to depict Carnival Spirit's unique aura. Farcus focused on styles of Chi- nese, Art Deco and Egyptian, to name a few. 44 www.maritimetoday.com Maritime Reporter & Engineering News