Sea Technology
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- Air-to-Sea Technology Transfer Maritime Reporter, Jan 2003 #12
As a response to the marine market's demand for higher power concentrations and increased plant reliability, deliverable at competitive cost, the new offering from Rolls-Royce is stimulating fresh interest within a conservative shipping industry in gas turbine-based solutions.
Building on the company's huge investments in aero engine technology over the past decade, the MT30 gas turbine has been specifically prepared for shipboard applications, combining power density and operating attributes in a manner intended to widen the appeal of gas turbine power among the maritime community. With 36-MW obtainable from a compact unit of barely 9-m (30- ft) in length, a claimed consumption rate of 0.2()7-kg/kWh at maximum output, and 80-percent parts commonality with a proven aero engine of outstanding reliability.
the MT30 holds promise as a challenger to diesel plant options as well as to existing gas turbines.
The MT30 has been engineered to meet the needs of naval ships and sophisticated commercial vessels alike.
While suited to surface combatants in the shape of frigates, destroyers and aircraft carriers, and fast naval auxiliaries and logistics vessels, the main target applications in the civil domain are cruise ships, full-displacement fast RoPax vessels, high-speed monohull ferries and also large LNG carriers.
Rolls-Royce is thereby intent on break ing new ground, by selling its homegrown, aeroderivative machinery into the commercial marine power sector.
The engine's aero parent, the Trent 800, has surpassed two-million running hours since its 1996 service debut. It accounts for nine out of every 10 engines selected for Boeing 111 aircraft, and was the first engine to be certified for ETOPS (Extended range over-water operations by twin-engine aircraft) at entry into service.
The popularity of the Trent 800, and the fact that so much of its componentry is perpetuated in the MT30, has a signal bearing on unit production costs, and therefore on the price at which the marine engine will be cast in the intensely competitive marine market.
The factor of engineering commonality also gives relevance, from a potential marine user's standpoint, to the "99.9- percent dispatch reliability" attributed by Rolls-Royce to the Trent 800 civil aero engine.
The company's commitment to strengthening its position in the marine power domain has been underscored by its creation of a £9-million ($14-million) dedicated test facility for the MT30 at its Bristol site in the UK, where the prototype is now being put through its paces.
A second development engine will be used for endurance tests and the obtaining of Det Norske Veritas type approval, anticipated for August 2003, in keeping with the scheduled commercial release of the first production engines during early 2004.
A steady stream of interested parties from the naval and commercial marine sectors worldwide, including the USA, is being received at Bristol, and the MT30 has already been written into the draft specification for the fast, monohull trailership design proposed by Spanish shipbuilding, ship repair and engineering group IZAR, in conjunction with Rolls-Royce.
The Anglo-Spanish initiative, dubbed the European High-Speed Cargo Vessel (EHSCV), is also expected to lead to a companion RoPax proposal, and was discussed in this column in November's issue. The MT30 has been conceived for both mechanical and electrical drive configurations, and its efficiency is said to be retained at powers down to 25- MW, making for increased application flexibility. Gas turbine plant has certain strengths in terms of trends in target commercial markets, as GE Marine Engines has already well demonstrated by its references for LM-series aeroderivative gas turbines in highspeed ferries and cruise liners.
Lower pollutant exhaust emission levels than those of diesel engines will undoubtedly be valued more and more against a backcloth of proliferating environmental controls and regulations, while a low mechanical noise signature and readily attenuated structural noise transmission hold increasing value in the context of passenger and crew comfort.
The MT30's thermal efficiency factor of 40-percent or more directly influences specific fuel consumption, and additionally means less emissions per ton of fuel burnt.
The annular combustors of the new marine engine are similar to those of the aero parent, and have been designed to burn commercially available distillate fuel to DMA standard. Consumption is said to be comparable with high-speed diesels at maximum power, and the fuel burn is also designed to match compet- ing gas turbines at 25-MW.
With a total module weight, including the acoustic enclosure, of as little as 22- tons, the power-to-weight ratio is impressive, to say the least. For genset drive applications in cruise ships using electric propulsion motors, the gas turbine permits more flexibility in the ship design process. Engines can be sited in the funnel, or aft near podded propulsors.
for example, so as to make the most effective use of the hull envelope.
Modular construction facilitates shipyard handling in newbuild projects. It expedites major maintenance, such that modules can be removed and replaced in many instances, avoiding the cost of complete engine overhaul.
Although gas turbine plant for cruiseships and fast, powerful ferries is an established option, Rolls-Royce has broken new ground by also advocating the emergent MT30 for LNG carrier propulsion.
The proposal is timely, given the current level of industry interest in possible alternatives to steam turbine plant for large LNG tankers, most recently expressed in the milestone selection of diesel-electric propulsion for a French newbuild. Rolls-Royce says that adoption of an MT30, rated at some 30-MW to ensure a laden speed of 20-knots, would enable engine room length in a 140.000-cu. m. capacity LNG carrier to be reduced by 19-m relative to a comparable steam turbine application. This could release up to 12-percent more of the given hull space for cargo, or alternatively enable a reduction in overall ship size. As with steam turbine plant.
the MT30 could utilize natural gas cargo boil-off. Maintenance contracts covering servicing, overhauls and spare parts supply, a field in which Rolls-Royce continues to show its mettle in the airline industry, are to be offered to support shipping operators and foster competitive through-life costs. The MT30 may be regarded as the first of a new generation of marine gas turbines. For instance, the development would serve as the basis for a 50-MW unit, another aero Trent derivative, proposed for the long-mooted transatlantic FastShip freight carrier project. The timing and extent of follow-on models to the MT30 will no doubt be heavily influenced by market reception to the potent new design encapsulated in the machine now running tin the testbed at Bristol
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- Training Success With U.S. Rig Simulator Featured At Conference Maritime Reporter, Dec 15, 1984 #10
. Details of the program were reported by Gregory D. Szczurek, vice president, Houston Marine Consultants, Inc., New Orleans, at the recent North Sea Technology Transfer Conference at the Technical University of Nova Scotia. Mr. Szczurek said the simulator, designed by Houston Marine and W.S. Atkins
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- UK Seeks Maritime Dominance of Yore Maritime Reporter, Jun 2015 #58
attractive location for maritime investment. The diversity of the U.K. Maritime Industry is immense. In fact it covers everything from shipping to sub-sea technology, ports to aquaculture, and maritime legal and financial services to leisure. It directly employs approximately 410,000 people, making a massive
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- Voices: Professor Cui Weicheng Marine Technology, Aug 2018 #10
Science and Technology Center (HAST), Lingang (New City), Pudong District, is one of those leading and influencing the development of advanced deep-sea technology. He is on an extraordinary mission to build a fleet of manned and unmanned vehicles capable of routine dives to the bottom of any ocean trench
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- MTR’s “Top 10” Ocean Influencers Marine Technology, Jun 2018 #6
Oceanographic Institution, and National Security Strategy from the National War College, is one of the world’s leading purveyors and developers of subsea technology.Several years ago at the home of then-CNO Admiral (Ret.) Gary Roughead, Marine Technology Reporter was invited to take part in a meeting and discussion
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March 2024 - Marine Technology Reporter page: 48. . . . . . . . . . . . . . . . . .www.birns.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Please visit us online 19 . . . . .Blueprint Subsea . . . . . . . . . . . . . . . . . . . .www.blueprintsubsea.com . . . . . . . . . . . . . . . . . . . . . .+44 (0) 1539 531536 5 . . . . . .Deep Ocean
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March 2024 - Marine Technology Reporter page: 47PRODUCT, PROFESSIONAL, VESSELS, MTR BARGES & REAL ESTATE FOR SALE Marketplace INNOVATIVE. UNIQUE. PROVEN. ALLAMERICANMARINE.com ???????????????????????????????????????? 9??????????SiC A????????ArC????????????????S???????C?????????9???Ç????????? ????????????????Ý???????S???y???????????????????K???:???? MAR
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March 2024 - Marine Technology Reporter page: 45in 1969, designs and manufactures instrumentation for the oceanographic and hydrographic communities with a world- wide customer base that includes: subsea, hydrographic, metrological and positioning, oceanographic, ports, har- bours, dredging, energy and scienti? c research sectors. • Greensea IQ Signs
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March 2024 - Marine Technology Reporter page: 43reduces the time and pro? ling technology, reaching into deeper waters for the ac- effort required to detect and classify objects of interest in sea- quisition of essential data for e.g., the development and opera- bed surveys undertaken by Kongsberg’s HUGIN AUVs, auto- www.marinetechnologynews.com
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March 2024 - Marine Technology Reporter page: 41fast and maneuverable Quadroin leverages EvoLogics’ expertise in low-drag bionic design. Dr. Rudolf Bannasch, EvoLogics founder, delved into years of research on penguin locomotion, resulting in the AUV’s remarkable hydrodynamic properties. With its low-drag shape, The Greensea IQ booth @ Oi impressed
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March 2024 - Marine Technology Reporter page: 40Surface Ves- In addition, the new USV is able to launch and recover a wide sel (USV), the DriX O-16. Bene? tting from an autonomy of range of subsea assets such as Remotely Operated Towed Ve- 2,500 Nm and a unique naval architecture that enables the USV hicles (ROTVs), inspection-class Remotely
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March 2024 - Marine Technology Reporter page: 37miscible barrier ? uid heavier than seawater (sg=1.026) and lighter than the battery electrolyte (sg=1.265). The original cell vent cap was screwed into the top of the riser pipe to vent the gases associated with charging. Wires were soldered to the lead (Pb) posts. The lead-acid battery was additionall
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March 2024 - Marine Technology Reporter page: 36a challenge, and offered in a “pouch” design, with a soft, ? at body. The pouch IATA regs vary with the batteries inside or outside an instru- is vacuum-sealed, with all voids ? lled by a gelled electrolyte. ment housing. Freight companies, including DHL, FedEx, Thus, there are no implodable spaces, and
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March 2024 - Marine Technology Reporter page: 34is irreversible. Examples include ? exibility of deployment location and tremen- alkaline and lithium cells. Secondary cells can be recharged dous sea? oor persistence. Stored electrical pow- by application of reverse current from a charger. The interior er in batteries permit the untethered operation
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March 2024 - Marine Technology Reporter page: 33Patania II uses jet water pumps to Oil States’ Merlin riser systems were lift nodules into a collection drum. successfully deployed on both the TMC / Allseas and JAMSTEC 2022 pilot projects. They also hold a world record water depth for a producing riser sys- tem of 14,764 feet. Impossible Metals is developing
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March 2024 - Marine Technology Reporter page: 32FEATURE SEABED MINING by a sea? oor plume from its pilot collection system test. pact, nodule collection system that utilizes mechanical and The Metals Company recently signed a binding MoU with hydraulic technology. Paci? c Metals Corporation of Japan for a feasibility study on The company’s SMD
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March 2024 - Marine Technology Reporter page: 31The Allseas-designed production system consists of the Hidden Gem production vessel at the surface, an airlift riser system and jumper hose, and the pilot nodule collector vehicle at the sea? oor. Image courtesy of Allseas www.marinetechnologynews.com 31 MTR #3 (18-33).indd 31 4/4/2024 2:12:41
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March 2024 - Marine Technology Reporter page: 30FEATURE SEABED MINING bilical. It has passive heave compensation which nulli? es the necott. “The focus since then has 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
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March 2024 - Marine Technology Reporter page: 29n January, Norway said “yes” to sea- bed mining, adding its weight to the momentum that is likely to override the calls for a moratorium by over 20 countries and companies such as I Google, BMW, Volvo and Samsung. Those against mining aim to protect the unique and largely unknown ecology of the sea?
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March 2024 - Marine Technology Reporter page: 28FEATURE SEABED MINING Nodule Collectors THE BATTLE LINES HAVE BEEN DRAWN, AND THOSE ON THE “YES TO SEABED MINING” SIDE ARE GETTING READY TO GO. By Wendy Laursen Engineers prepare to launch the pilot collector vehicle to the sea? oor. Image courtesy of TMC 28 March/April 2024 MTR #3 (18-33).
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March 2024 - Marine Technology Reporter page: 27SEA-KIT USV Maxlimer returning from HT-HH caldera in Tonga. © SEA-KIT International data and further assess ecosystem recov- ery. What is known, noted Caplan-Auer- bach, is that the impact of submarine vol- canoes on humans is rare. “The HT-HH eruption was a tragedy, but it was very unusual. It let us
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March 2024 - Marine Technology Reporter page: 26FEATURE OCEANOGRAPHIC INSTRUMENTATION & SENSORS Kevin Mackay, TESMaP voyage leader and Center head of the South and West Paci? c Regional Centre of Seabed 2030. Kevin in the seismic lab at Greta Point looking at the Hunga Tonga-Hunga Ha’apai volcano 3D map completed with data from the TESMaP voyage
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March 2024 - Marine Technology Reporter page: 25Eruption Seabed Mapping Even before the recent HT-HH erup- corals, sponges, star? sh and mussels. Project (TESMaP) to understand the ex- tion, subsea technology helped scien- This indicated the resilience of certain tent of impact and inform future manage- tists uncover the behaviors of underwa- marine
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March 2024 - Marine Technology Reporter page: 23images of the eruption. This catastrophic event not only shook the world but catalyzed an urgency for understanding sub- marine volcanoes, inspiring new research initiatives and highlighting ongoing scienti? c developments. Submarine volcanoes are largely unknown, in contrast with their sub-aerial (above-ground)
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March 2024 - Marine Technology Reporter page: 22FEATURE OCEANOGRAPHIC INSTRUMENTATION & SENSORS Aerial view of HT-HH volcano, showing new multibeam depth data overlaid on islands satellite image. © SEA-KIT, NIWA-Nippon Foundation TESMaP 22 March/April 2024 MTR #3 (18-33).indd 22 4/4/2024 9:08:10 AM
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March 2024 - Marine Technology Reporter page: 20?8QGHUZDWHU&RPPXQLFDWLRQV ?&DEOHV &RQQHFWRUV Event Distribution: MTR E-Magazine Edition: Oceanology International, /RQGRQ8. Event Distribution: Subsea Expo Oceanographic 2?VKRUH7HFKQRORJ\&RQIHUHQFH27& $EHUGHHQ8. +RXVWRQ7;86$ Floating Wind Solutions 8'7 +RXVWRQ7;86$ /RQGRQ8. (XURSH2?VKRUH:LQG
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March 2024 - Marine Technology Reporter page: 19and corrosion control cant cost savings, mainly related to vessel charter. expert having worked across The major advantage of using FiGS on any type of subsea engineering, design, modelling, structure is the large amount of accurate information obtained project management, inspection, over a relatively
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March 2024 - Marine Technology Reporter page: 18TECH FEATURE IMR There are also weaknesses in terms of accuracy because of FiGS Operations and Bene? ts signal noise and the ability to detect small ? eld gradients. In Conventional approaches to evaluating cathodic protection this process there is a risk that possible issues like coating (CP)
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March 2024 - Marine Technology Reporter page: 17across the board, from and/or corrosion products, or due to the anode being buried in reducing the risk of spill events on pipelines to saving time seabed sediments or under rock dump (pipelines). and money across decades long maintenance regimes. Proximity or cell to cell technologies which also required