Power Solutions
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- Flexible Power Solutions* Maritime Reporter, Apr 1991 #88
On many vessel types the required propulsion power varies greatly during a single voyage. Remarkable differences in load, trim or cruising speed are the cause.
Many shipowners have noted that conventional single-engine solutions do not provide the flexibility required for such wide fluctuations.
The effects are even greater for ships where the original trial speed was far above the actual requirement.
Trial speeds and thus the installed main engine outputs are purposely selected to be too high.
This is done to make the ship more interesting on the second-hand market, while the actual traffic where the vessel is used moves at much lower speeds.
Multi-engine solutions are often chosen for many ship types. This permits generation of propulsion power required in any operating mode at engine loadings close to the optimum fuel consumption loadings.
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The most spectacular example is the passenger ferries, where the usual layout is two propeller shafts and four main engines. There are also examples where as many as four engines are served by a single gearbox.
For a typical passenger ferry with a four-engine, twin-screw installation, the installed outputs can exceed 45,000 bhp. The reasons why passenger ship operators select multi- engine configurations are obvious: availability; flexibility; and compactness.
Another way to achieve flexibility is to install a diesel-electric solution, where the propulsion power comes from a common "power station." The power station normally consists of from two to even nine engines and since this power station feeds both the electrical equipment as well as the propulsion motors, it is easy to install an electronic performance control that starts and stops engines based on the actual power requirement.
In this way, the engine loadings are always on or close to the optimum fuel consumption point.
A twin-engine installation would be normal for a single-screw vessel.
In some cases the optimum is that both engines are the same size. In other cases, it is better to use a "father- and-son" installation, which is a machinery arrangement where the main propulsion is handled with a multi-engine arrangement consisting of a larger engine (father) and a smaller engine ( son). The engines are connected to a common gearbox and drive a single controllable pitch propeller.
The father-and-son solution is usually very efficient for ships with a varying speed or loading profile.
By selecting the sizes of main engines wisely and by installing suitable shaft generator arrangements, remarkable savings in both capital expenditure and operating costs can be achieved.
Further savings can be made when onboard electricity is generated with the main engines. Due to the CPP installation, the configuration does not require expensive constant speed gears for a shaft generator.
The cost and complexity of such devices are normally much more than what would be anticipated in the initial stage.
In conclusion, the use of multiengine installations has proven a useful alternative to conventional slow-speed engine installations. The flexibility needed to run at any speeds and loading conditions is highly appreciated by owners already using the system.
The availability of the system is increased, since the ship is maneuverable at all times, even if one of the main engines is being overhauled.
The economy of this system results not only from lower operating costs, but also from low capital expenditure and space savings.
For free literature on diesel engines from Wartsila, Circle 62 on Reader Service Card *Editor's Note—Excerpted from a paper by Kenneth J. Jofs, president, Wartsila Diesel do Brasil Ltda.
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- MN 100: Caterpillar Marine Marine News, Aug 2014 #18
all the sales and service activities for Cat and MaK branded marine products within Caterpillar Inc. This organization provides premier marine power solutions and customer service from a single source for the global ocean-going, commercial and pleasure craft markets. Caterpillar offers a comprehensive
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- Hyster Variable Power Technology Engines Marine News, Mar 2015 #56
industrial engines designed to increase productivity and fuel economy for its 3,000 - 7,000 lb. Class IV and V product lines. The new engines from Power Solutions International (PSI) feature Hyster Variable Power Technology and offer a more powerful and efficient solution for demanding applications. Optional
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- New 20kA Surge Protector for 480V Maritime Reporter, Aug 2015 #83
SSL power solutions manufacturer Thomas Research Products (TRP) introduced a new surge protector for 480V circuits. The FSP3-480-20kA protects LED luminaires from surges up to 20,000 amps. Using new components, the FSP3-480-20kA is the same size as the company’s current 277V model. An LED indicator on
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- MN100: Cummins Marine, Inc. Marine News, Aug 2016 #22
expertise in a full range of marine products and vessel integration. Cummins offers a complete line of propulsion, generating set and auxiliary power solutions designed specifically for commercial marine applications, from inland rivers to offshore. Its products are supported at every major port with
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- EPA Tier 4: Difficult and Contentious, 12 Years and Counting Marine News, Mar 2020 #34
Brown, Segment Leader, Commercial Marine at Cummins Engines, said his team is “working closely with naval architects and customers on power solutions that meet Tier 4 emission levels and enable vessels to complete their missions.” Brown said that “overall, the impact of cleaner emissions
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- MN 100: Cummins Marine, Inc. Marine News, Aug 2015 #26
, new and ReCon parts and ReCon engines from 3.9 liters to 19 liters. Cummins offers a complete line of propulsion, generating set and auxiliary power solutions designed specifically for commercial marine applications, from inland rivers to offshore. Its products are supported at every major port with
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- Engine Providers Power Operators' Profits Marine News, Aug 2016 #58
all the sales and service activities for Cat and MaK branded marine products within Caterpillar Inc. This organization provides premier marine power solutions and customer service from a single source for commercial and pleasure craft markets. Caterpillar offers a comprehensive marine diesel power range
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- MagneTek ALS Adds Pease, Rizzotti To Staff Maritime Reporter, Feb 1989 #59
commitment by MagneTek Inc. to the government and military markets. All of the company's extensive and long-standing expertise in military power solutions will now be concentrated in MagneTek Defense Systems, which includes complete manufacturing, support and marketing services. MagneTek ALS
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- MN 100: Cummins, Inc. Marine News, Aug 2014 #10
designed and manufactured or integrated by divisions of the Cummins family. Cummins offers a complete line of propulsion, generating set and auxiliary power solutions designed specifically for commercial marine applications, from inland river to offshore. Its products are supported at every major port by an
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- gplink: Remote monitoring system designed for CAT engines Marine News, Feb 2013 #37
Remote Tracking, Monitoring, and Notification Systems for Cat Powered yachts and vessels are here. The organization that provides premier power solutions in the medium- and high-speed segments with outputs from 93 to 16,000 kW in main propulsion and 10 to 7,680 kWe in marine generator sets, utilizing
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- Wartsila Unveils Plans For The Future Maritime Reporter, Nov 2000 #89
existing skills and competence to develop its applications, products and services to create highly functional and compatible total marine power solutions from a single supplier — The Ship Power Supplier. Today, Wartsila offers a comprehensive range of marine diesel engines, of four- and two-stroke
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March 2024 - Marine Technology Reporter page: 4th CoverGlow a little longer. Superior sensor performance on a rmance on a – – RBRtridentfraction of the power RBRtridente teee ackscatter or turbidity with hi i in n n t t th h h he e e s sa a am m m me Measure chlorophyll a, fDOM, and backscatter or turbidity within the same e e sensor package using the
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March 2024 - Marine Technology Reporter page: 44NEW TECH OCEANOLOGY INTERNATIONAL 2024 Image courtesy Metron/Cellula Teledyne Marine acquires Valeport: Matt Quartley, MD, Valeport and Ole Søe-Pedersen, VP & Image courtesy Teledyne Marine GM Teledyne Marine announce the deal in London. Pictured (L-R): Cellula Robotics, President, Eric Jackson, Metron
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March 2024 - Marine Technology Reporter page: 42Image courtesy MacArtney Birns celebrated its 70th anniversary at Oi. Cables & Connectors CABLES & CONNECTORS BIRNS made a splash at Oi at the company’s Power Forward event, with the celebration of the company’s 70th anniversary, and the launch of a new high amperage subsea connector se- ries, the 225 Amp
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March 2024 - Marine Technology Reporter page: 41the ROV- 1500 is easy to transport and deploy. Similar to Outland’s previous models, the ROV-1500 shares an easy to use con- trol system and topside power. Field replaceable components continue to make maintenance a breeze. EvoLogics launched the next iteration of the Quadroin AUV. Originally introduced
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March 2024 - Marine Technology Reporter page: 40one month in the rear-view mirror, MTR takes a look at some of the interesting technologies launched before, during and after the London event. as AI powered obstacle detection and avoidance capabilities. VEHICLES Exail unveiled its new transoceanic Uncrewed Surface Ves- In addition, the new USV is able
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March 2024 - Marine Technology Reporter page: 39. Batteries intended for cold environments can be placed in a refrigerator or freezer and the leads brought out to the CBA V. The CBA V can perform a Power Pro? le, useful for designers working with solar charging systems on buoys and unmanned surface vehicles (USV). For very low currents, continuous
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March 2024 - Marine Technology Reporter page: 38.com Figure 6 The West Mountain Radio Computerized Battery Analyzer (CBA V) attaches to a Figure 5 laptop by a USB-B cable, and to a battery by Powerpole® Connectors. Exploded view of an AGM lead-acid battery. ? Nickel-Cadmium (NiCad) batteries have a lower nom- ment System) the batteries are
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March 2024 - Marine Technology Reporter page: 36Mariana Trench using PBOF, BMS-protected lith- in the early 1960’s. If exposed to seawater, they must be ium polymer pouch batteries. The submersible’s power could pressure-compensated. Any compensation ? uid must consider be con? gured to be as high as 96KWh, though it was typically speci? c gravity
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March 2024 - Marine Technology Reporter page: 35effect, capable of moderately deep discharge, and much safer than primary lithium cells. They are used in ap- plications requiring lightweight and high-power drains. They COMMON BATTERIES IN MARINE APPLICATIONS Certain chemistries have found wide use in the marine ? eld do require built-in protection
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March 2024 - Marine Technology Reporter page: 34sea? oor instrumentation on ocean landers, acti- generation process is not perfect, and some material is lost vate the release of the descent weight, and power surface in each discharge-recharge cycle. This limits the number of recovery beacons. times the battery may be recharged, known as cycle life. BATTERY
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March 2024 - Marine Technology Reporter page: 30has been on scaling while en- wave, current and vessel motions that in? uence loads in the suring the lightest environmental impact,” says The Metals power umbilical. The LARS can operate in up to 3.5m wave Company CEO Gerard Barron. In-? eld collection system tri- height signi? cant. The physical connection
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March 2024 - Marine Technology Reporter page: 29. Onboard technology developments include the vessel’s launch and recovery system (LARS) which deploys and recovers the col- lector and feeds its power and control um- www.marinetechnologynews.com 29 MTR #3 (18-33).indd 29 4/4/2024 2:10:29 P
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March 2024 - Marine Technology Reporter page: 202024 Editorial Calendar January/Februay 2024 February 2024 March/April 2024 Ad close Jan.31 Ad close March 21 Ad close Feb. 4 Underwater Vehicle Annual Offshore Energy Digital Edition ?2?VKRUH:LQG$)ORDWLQJ)XWXUH ?2FHDQRJUDSKLF?QVWUXPHQWDWLRQ 6HQVRUV ?6XEVHD'HIHQVH ?6XEVHD'HIHQVH7KH+XQWIRU ?0DQLS
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March 2024 - Marine Technology Reporter page: 13nyone familiar with glider hardware options integrated for a broad Glider answers that need,” said Shea autonomous underwater ve- range of missions. Quinn, Slocum Glider Product Line hicles (AUVs) is certainly “As the use of Slocum Gliders grew, Manager at TWR. A familiar with the popular- so did
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March 2024 - Marine Technology Reporter page: 3EMPOWERING World leading electric underwater robotics Seaeye eM1-7 Electric Manipulator • Seven function work class manipulator • Compatible with most work class ROVs • Maximum reach 1,990mm • Lift capacity 122kg/454kg (max/min reach) • Precise position and force feedback • Modular self-contained
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March 2024 - Marine Technology Reporter page: 2Nodule Collectors Tapping the sea ? oor for resources may be controversial, but it’s happening. y Wendy Laursen B 34 Lander Lab We Need More Power Stored electrical power in batteries permit the untethered operation of sea? oor instrumentation on ocean landers, among other things. By Kevin
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March 2024 - Marine Technology Reporter page: 2nd CoverSMART SUBSEA SOLUTIONS • Delivering data in most adverse conditions: underwater acoustic modems with advanced communication technology and networking • Accurate USBL, LBL and hybrid positioning of underwater assets, navigation for divers • Modem emulator and multiple cost-saving developer tools • Sonobot
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April 2024 - Maritime Reporter and Engineering News page: 3rd CoverYour Specialist Ofshore Lubricant Partner T Togeth her w we go o furt ther r Our commitment to customer service and technical support extends to ofshore operations. With our robust global supply chain, we deliver the optimal marine lubrication solution to your ?eet, precisely when and where it’s needed.
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April 2024 - Maritime Reporter and Engineering News page: 47MARKETPLACE Products & Services www.MaritimeEquipment.com Powering the fleet for 60 years! HYDRAULIC NOISE, SHOCK AND VIBRATION SUPPRESSOR Noise, Shock, VibraO on & PulsaO on in Quiet, Smooth Flow Out Oil Bladder Nitrogen (blue) Manufactured by MER
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April 2024 - Maritime Reporter and Engineering News page: 43crews must be soft- tive fuels, carbon capture, batteries and and a regulatory framework which takes ware engineers, but there is no going fuel cell power will all provide critical account of the ‘graceful deterioration’ of back: there has to be both a systematic pathways to maritime decarbonization
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April 2024 - Maritime Reporter and Engineering News page: 42OPINION: The Final Word Seeing the Ship as a System Shipping must engage with the decarbonization realities that lie ahead by changing the way it crafts maritime legislation to re? ect its place in the interconnected, interdependent world economy, said Eero Lehtovaara, ABB Marine & Ports. ABB Marine &
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April 2024 - Maritime Reporter and Engineering News page: 41Nautel provides innovative, industry-leading solutions speci? cally designed for use in harsh maritime environments: • GMDSS/NAVTEX/NAVDAT coastal surveillance and transmission systems • Offshore NDB non-directional radio beacon systems for oil platform, support vessel & wind farm applications
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April 2024 - Maritime Reporter and Engineering News page: 39in Norway as ENOVA, which manages the Norwegian Climate and Energy fund on behalf of the government, is planning ammonia grant tenders for both ammonia powered ships and ammonia infrastructure in 2024. There are multiple newbuilding projects in the pipeline, and ongoing ammonia- powered Platform Supply
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April 2024 - Maritime Reporter and Engineering News page: 38New LNG Containerships Carbon Capture @ Sea Crowley shared ? rst renderings and the names of its four new dual fuel lique? ed natural gas (LNG)-powered containerships: Quetzal, Copan, Tiscapa and Torogoz. The 1,400 TEU ves- sels were ordered in 2022 by Singapore-based Eastern Paci? c Shipping