Machinery

  • —Literature Available— Machinery selection for a cruise ship is a demanding task. Compared with other ship types, there are many unique requirements for cruise ship machineries. Passenger demand must be given the highest priority when selecting machinery concepts.

    The machinery should not be obvious from the passengers' point of view. Three of the most important passenger requirements are: no vibration, no noise and no smoke.

    From the interior designer's point of view the machinery should be small and compact. The shipowner is responsible for the rest: to ensure that the ship keeps the itinerary economically and safely. He not only has to comply with the wishes of his customers, but also must make sure that the machinery provides highest reliability, high flexibility, low operating costs and low investment costs.

    At first glance all these requirements might seem difficult to comply with. Fortunately, experience has shown that all of them can be met. The latest trends in cruise shipping clearly indicate that one of the most rational alternatives in a cruise liner is a medium-speed pow- er plant. But what are the most efficient and most flexible solutions available?

    There are two general trends in machinery concepts. Both point in the same direction but achieve their goals in slightly different ways: diesel mechanical machinery; and diesel electric machinery.

    It is generally believed that diesel- electric propulsion is the only way to reduce vibration levels onboard a cruise ship. But the latest development in medium speed diesel engines have also made it possible to put very large main engines on resilient mountings, thereby meeting the strictest comfort requirements.

    Wartsila Diesel has developed this technology for its complete engine range, unit sizes from 700 to 19,500 bhp. It is possible for these to be directly mounted on the engine block without the need for a separate intermediate foundation.

    This is possible because of the sturdy design of the engine block. This drastically reduces the required height in the engine room and the weight of the installation.

    There are basically two different ways to install a main engine resiliency: under-critical mounting; and over-critical mounting.

    The final selection depends mostly on the requirements. The best isolation of the main engines is achieved by the over-critical mounting, although this mounting is a little more complex to achieve.

    However, many of the most recent Wartsila Diesel cruise ship references are based on over-critically mounted main engines. This is the case with the Future Seas being built by Atlantique and the latest newbuildings for Birka Cruises and Silja Line at Wartsila Marine Industries.

    Since a cruise ship has an extremely wide speed range, there are huge demands on the flexibility of the machinery. A trial speed of 21 knots requires more than twice the output compared with a cruising speed of 16 knots. If the machinery is optimized for the trial speed condition, the machinery will be far from optimal at normal cruising speed, i.e., the speed where most of the fuel is burned. To solve such a dilemma, it is advantageous to have the machinery divided into at least four main engines. In this way there are a multitude of operating modes to choose from, depending on the cruising speed. It should be noted that contrary to the practice of may ship operators, there are operation modes where there is an advantage in having two engines in operation on one shaft and one engine on the other shaft. The energy loss coming from the counter rudder is only in the order of 2 to 3 percent, which can easily be won back with optimal engine loading.

    In many types of ships there might be an advantage to produce all or part of the electricity onboard with shaft generators. Due to the huge electricity demand combined with a relatively low propulsion requirement on cruise ships it is usually advantageous to avoid shaft generators on cruise ships. The use of shaft generators on a cruise ship means that high propeller speed must be maintained at small propeller pitch when cruising. This seriously decreases propulsion efficiency and increases the level of propeller- induced vibration.

    For cruise ships it is therefore important to sail according to a combinator curve. Tremendous savings in fuel consumption at partial speeds as well as a lower vibration level will be the results. On many of the most recent deliveries the electrical power is produced by auxiliary engines that burn heavy fuel oil.

    Examples of such references are the Sovereign of the Seas, Birka Princess and Amorella.

    Diesel electric machinery is a very elegant and sophisticated way to propel a ship. The main advantage is the flexibility achieved in this way. If the ship has machinery built according to the power house concept, there are several engines connected to a common electrical system from where both propulsion and auxiliary power are taken. By dividing the machinery into several units, it is relatively easy to program a load control system that will keep the engine loadings on optimal levels at all times. This is particularly successful if the machinery comprises engines of different unit sizes.

    In this way harbor conditions will be covered by the smaller engines and cruising condition by the larger engines or by a combination of different sized engines.

    Diesel electric machinery usually has higher initial costs, but on the other hand it offers possibilities for secondary savings. It is all too easy to disqualify the diesel electric machinery by looking at initial costs alone. However, these advantages may be difficult to estimate. There is more freedom to place the machinery in areas of the ship where a diesel mechanical machinery could not be placed. The machinery can be placed for optimal stability and space utilization. In this way the total cost of the ship can be reduced.

    There are some recent Wartsila Diesel references with diesel electric propulsion: Wartsila Marine Industries' newbuildings for Carnival Cruise Line and the sail cruisers for Wind Star Cruises and SMT built by Ateliers et Chantiers du Havre in France.

    In conclusion, even if selection of machinery for cruise ships has traditionally been difficult in the past, the latest developments in mediumspeed engine technology have made this job considerably easier. Wartsila has developed a complete range of medium-speed engines well suited to all sizes and types of cruise ships, and Wartsila Diesels have become one of the prime choices in highclass, high-powered cruise ships.

    For free literature giving full information on Wartsila engines, Circle 62 on Reader Service Card

  • breakdowns have a significant cost impact. Recognizing the importance of preventing equipment failures, companies continue to adopt automation for machinery monitoring at a rapid pace. Continual improvements in the price/performance ratio of automation systems have also fueled their increased use in

  • for all vessel owners—inland, coastal and deepdraft. To satisfy the changing needs of these cost-conscious customers, manufacturers of deck machinery and cargo handling equipment are continually improving existing equipment and introducing new models. Lighter weight, increased capacities,

  • The U.S. Navy is currently searching for companies capable of performing naval machinery overhaul work. In an effort to improve the quality of naval machinery Class B overhauls, the Naval Sea Systems Command (NAVSEA) is implementing a program to direct procurement of repair services for selected

  • Fred Hahnfeldt has been appointed sales manager for H.O. Penn Machinery Co. Inc.'s power division by vice president Henry Killian. Mr. Hahnfeldt joined H.O. Penn in 1968 after graduating from Yale University. He has held several positions, including credit manager and finance representative. In

  • Hyde Products, Inc. of Cleveland, Ohio has recently been awarded contracts to supply deck machinery for the first vessels of two new classes to be built in South Korean shipyards. Hyde will build the antimagnetic anchor windlass for a Mine Hunting Craft (MHC) and the steering gear, anchor windlass

  • cargo handling equipment and access and stowage systems continue to improve their products and to introduce new, more efficient cargo gear and deck machinery. The editors of MR/EN asked the manufacturers of cargo-handling and other deck machinery and fittings to tell us about their product lines and

  • include Germanischer Lloyd, the Society of Naval Architects and Marine Engineers, the Shipbuilding and Offshore Suppliers Section of the German Machinery and Plant-Makers' Association (VDMA), and the Marine Technology Trade Association (WIM). Exhibition highlights at SMM '84 will include propulsion

  • Markey Machinery Co., Inc. of Seattle, designer and builder of auxiliary marine deck equipment, recently delivered a Type WESD- 28S Drum Windlass for a 350-foot barge built by McDermott Shipyards, for Matson Navigation Co. The 10 hp electric windlass has a narrow width drum to ease spooling, and has

  • , each giving full technical specifications and applications, and illustrating each unit with schematic drawings, diagrams, and photographs. The machinery described includes: mooring equipment; windlasses, winches, and combination units f o r drilling vessel mooring systems; winches for construction

  • to program chairman Carl E. Erickson, who introduced the topic for the evening and the two presenters: "New Overhaul Techniques for Unique Naval Deck Machinery," by Lon L. Denison, UNREP overhaul coordinator, Naval Weapon System Engineering Station, Port Hueneme, Calif.; and Arthur F. Green, s u p e

  • Ingram Class System." The current energy and economic realities that have affected the typical ship designs have also impacted the design of the machinery plant automation system. This paper described the Ingram Class ships, with emphasis on why this ship d e s i g n reflects some of the current

  • MR Feb-24#26 COVER FEATURE
ARC  KEEPING 
THE CARGO ROLLING
With a ?)
    February 2024 - Maritime Reporter and Engineering News page: 26

    COVER FEATURE ARC KEEPING THE CARGO ROLLING With a ? eet of nine U.S.-? ag RoRo ships, American Roll-On Roll-Off Carrier Group (ARC), is the U.S.’ premier commercial RoRo carrier of U.S. government and military cargo. As the world becomes an increasingly contentious place, Eric P. Ebeling, President

  • MN Feb-24#18  to be eco-
such as heavy machinery, hazardous substances)
    February 2024 - Marine News page: 18

    program not only risks. Waterfront workers are exposed to various hazards ensures the wellbeing of workers but also proves to be eco- such as heavy machinery, hazardous substances, extreme nomically bene? cial. It’s estimated that for every dollar weather and long hours. If not properly managed, these

  • MR Jan-24#38  stores, refrigeration machinery, laundries,  Wendelin)
    January 2024 - Maritime Reporter and Engineering News page: 38

    of marine vessels and offshore units including in shorter ? ve- or 10-year intervals, depending on the owner. galleys, provision stores, refrigeration machinery, laundries, Wendelin said ALMACO also strives to maximize utiliza- public spaces, as well as guest cabins and crew living quarters. tion of advanced

  • MR Jan-24#20  coating that 
of heavy machinery, which necessitated)
    January 2024 - Maritime Reporter and Engineering News page: 20

    holds All images courtesy of The Interlake Steamship Company ? at bottoms that accommodate the use bene? t from a zinc-based coating that of heavy machinery, which necessitated provides durability in an area exposed to advanced coatings systems to protect these stressors that include loose cargo loaded

  • MT Nov-23#23 .com
range of Kongsberg deck machinery.
www.marinetechnologynews)
    November 2023 - Marine Technology Reporter page: 23

    02559 • Tel: +1-508-564-7640 • Fax: +1-508-564-7643 thruster to aid maneuverability, and a [email protected] • www.falmouth.com range of Kongsberg deck machinery. www.marinetechnologynews.com 23 MTR #8 (18-33).indd 23 11/28/2023 10:47:34 A

  • MR Dec-23#36   work, data distribution, machinery control, and propulsion)
    December 2023 - Maritime Reporter and Engineering News page: 36

    Security bridge, navigation, command and control, computing net- Cutter (PSC) program, the Coast Guard of? cials describes work, data distribution, machinery control, and propulsion the OPC program as one of the service’s highest acquisi- control system. tion priorities. The OPC joins the 11 planned

  • MR Dec-23#33 Image courtesy GLDD
DGE ALVESTON SLAND G  I
Senior Director)
    December 2023 - Maritime Reporter and Engineering News page: 33

    Image courtesy GLDD DGE ALVESTON SLAND G I Senior Director Sales - Global Marine and Stationary, Wabtec, off we are. Minimizing weight is an important consideration for makes the system smaller and simpler for the customer the that type of vessel and it links right into the reduced weight of the cost

  • MR Dec-23#32  MORE CARGO THEY HAVE MORE MACHINERY SPACE LIKE
WITH THE)
    December 2023 - Maritime Reporter and Engineering News page: 32

    T DREDGE THEY CAN HAVE LARGER HOPPERS F IT S A VESSEL THAT CARRIES , . I ’ CARGO THEY CAN HAVE MORE CARGO THEY HAVE MORE MACHINERY SPACE LIKE WITH THE ALVESTON SLAND G I ,” . I ’ , , – P W , S D S - G M S , WATRICK EBB ENIOR IRECTOR

  • MR Dec-23#28  the  computerization of the machinery, learning how reliant)
    December 2023 - Maritime Reporter and Engineering News page: 28

    job more working knowledge of power management systems and the ef? cient. The technology on this new series of ships is the computerization of the machinery, learning how reliant and show stopper, and in the case of Empire State VII the upgrade how integral computer software is to engine management

  • MR Dec-23#17  data while 
operate onboard machinery, all without the risk)
    December 2023 - Maritime Reporter and Engineering News page: 17

    need ridors to memorize layout, repair simulated malfunctions, and to be in control at all points to receive operational data while operate onboard machinery, all without the risk that training on at the home base and run simulations that will help the vessel a physical ship would entail. Physical training

  • MN Nov-23#49 , aiding the U.S. Army  dredge machinery package by Royal 
livered)
    November 2023 - Marine News page: 49

    islands and nourishing beaches an electrical power, propulsion, and building Group (ESG) this Spring de- lost to erosion, aiding the U.S. Army dredge machinery package by Royal livered R.B. Weeks, a 8,550 cubic yard Corps of Engineers and other key cli- IHC. It is equipped with twin Wabtec capacity trailing

  • MN Nov-23#45  Acad-
Starting in the machinery space, Empire State)
    November 2023 - Marine News page: 45

    scheduled for delivery in 2024. Philly Shipyard recently more than 60 years old. laid the keel for State of Maine (Maine Maritime Acad- Starting in the machinery space, Empire State has a emy) and cut ? rst steel for Lone Star State (Texas A&M modern diesel-electric power plant, built with redundancy Maritime

  • MR Nov-23#76  OF ALL TYPES OF MARINE MACHINERY EQUIPMENT SUPPLIES
’)
    November 2023 - Maritime Reporter and Engineering News page: 76

    OF QUICK REFERENCE BUYER’S READERS GUIDE IT INCLUDES THE NAMES AND ADDRESSES OF THE WORLD S LEADING MANUFACTURERS AND SUPPLIERS OF ALL TYPES OF MARINE MACHINERY EQUIPMENT SUPPLIES ’ , ’ , , AND SERVICES LISTING IS PROVIDED AT NO COST FOR ONE YEAR IN ALL ISSUES ONLY

  • MR Nov-23#66  
selling/servicing of heavy machinery, positioning itself)
    November 2023 - Maritime Reporter and Engineering News page: 66

    provider of REINTJES Gearboxes. st Today, as it enters its 51 year, the company has built a presence that exceeds the selling/servicing of heavy machinery, positioning itself as propulsion experts, staffed and out? tted to meet some of the industry’s greatest challenges related to the entire propulsion

  • MR Nov-23#40  Heavy 
Industries Engine & Machinery Division
GENSETS
NEW)
    November 2023 - Maritime Reporter and Engineering News page: 40

    GENSETS HHI-EMD has developed a 4-stroke HiMSEN methanol engine. Image courtesy of Hyundai Heavy Industries Engine & Machinery Division GENSETS NEW FUELS BUT PERENNIAL GOALS Fuel ? exibility may be a key driver for recent developments in gensets, but the perennial goals of lowering CapEx and OpEx

  • MR Nov-23#25  on which Austal’s automated machinery  agement standpoint)
    November 2023 - Maritime Reporter and Engineering News page: 25

    program, currently building vessel #3 and predictive modeling perspective and a product lifecycle man- the earlier vessels on which Austal’s automated machinery agement standpoint is critical; end-to-end performance-based control systems have been installed. Also, through Saildrone, logistics is possible

  • MN Oct-23#Cover  Project
In San Francisco
Deck Machinery
One-on-one with Markey
CEO)
    October 2023 - Marine News page: Cover

    10 arine OCTOBER 2023 www.marinelink.com News M Offshore Energy Vessel Bottlenecks Loom Alternative Fuels Hydrogen Demo Project In San Francisco Deck Machinery One-on-one with Markey CEO Blaine Dempke Inland Waterways Making Progress on Big Infrastructure Project

  • MR Sep-23#27  the computerization of the machinery, 
learning how reliant)
    September 2023 - Maritime Reporter and Engineering News page: 27

    are going to get such a great working knowledge of power man- Photo courtesy Captain Morgan McManus agement systems and the computerization of the machinery, learning how reliant and how integral computer software is to engine management and power management,” which is what they’re going to see when

  • MR Sep-23#17  be impact to the physical machinery as dif-
hydrogen in)
    September 2023 - Maritime Reporter and Engineering News page: 17

    ect in conjunction with NAVSEA, blending small amounts of edly there will be impact to the physical machinery as dif- hydrogen in the combustion process with the intent of improv- ferent fuels impact different systems and components – fuel ing the combustion characteristics of the diesel. injectors, seals

  • MR Aug-23#56  inches and are intended for  machinery, making them a versatile)
    August 2023 - Maritime Reporter and Engineering News page: 56

    . These wheels range in size operated, gravitational, and hydraulic ting/ Notching/ Grinding Type 27, .045" from 4 to 9 inches and are intended for machinery, making them a versatile and Right Angle Cut-Off Types 01/41 and use on portable angle grinders. adaptable choice. 27/42, and Straight Cut-Off

  • MR Aug-23#46  MHI)
    August 2023 - Maritime Reporter and Engineering News page: 46

    western Japan, built under contract for KEYS Bunkering West Japan Co., Ltd. The ceremony took place at the Enoura Plant at MHI's Shimonoseki Shipyard & Machinery Works in Yamaguchi Prefecture. The new vessel, christened KEYS Azalea, is scheduled for delivery in March 2024 following out? tting work and sea

  • MR Aug-23#14  the technology. Ship-
digital machinery that makes AI possible)
    August 2023 - Maritime Reporter and Engineering News page: 14

    already seeing To answer this question, it helps to know a little about the successful commercial deployment of the technology. Ship- digital machinery that makes AI possible. Let’s look at what yard operations also create a lot of data related to work? ow, goes on under the hood: machine learning

  • MR May-23#14  bring tremendous bene?  ts to machinery  “3D models are important)
    May 2023 - Maritime Reporter and Engineering News page: 14

    inspection his- and time-based maintenance to condition-based and predic- tory using 3D visuals. tive maintenance will bring tremendous bene? ts to machinery “3D models are important to fully understand the multiple maintenance activities, with increased reliability and an up- phenomenon that can affect

  • MR Apr-23#44 DECK MACHINERY
Image courtesy Damen
offshore ?  oating)
    April 2023 - Maritime Reporter and Engineering News page: 44

    DECK MACHINERY Image courtesy Damen offshore ? oating wind turbines, larger than traditional anchor A unique feature of the FLOW-SV is the combination of handling vessels. FLOW-SV will be designed to take all ma- bollard pull generated by the thrusters and added pulling force terials and equipment