The West German firm of Renk Tacke recently reported that another six Renk Constant Frequency (RCF) gear installations have been ordered, bringing the total sold within three years to well over 100 installations representing a value of approximately 100 million Marks (about US$56 million).
The RCF system, developed jointly by Renk Tacke with MAN B&W, is used for economical current generation aboard ships. Via the RCF gear, a ship generator can be driven by a cheap, low-speed diesel engine running on low-price lube oil. The installations have been successfully tested in service, partly in conjunction with TCS-Turbo-Compound Systems which converts a part of the exhaust gas energy into power.
According to Renk, the combination of RCF and TCS represents the economical solution for on-board energy generation. The savings in operating costs lead to very short amortization costs. As a rule, the initial costs are recovered as early as after two to four years. Moreover, the RCF/TCS installations need very little maintenance and operate reliably at long (four years) service intervals.
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and governments will need to expand the resources they make available for research and development.A technology with potentialOne area of promise for energy generation onboard ships is fuel cells. Fuel cells are presently used in a variety of land applications, such as to provide power in remote areas, as well
diesel engines and shaft generator ensure an economical and safe operation of the engines. In addition to the manual control of the electrical energy generation in the machinery control room, the wheelhouse is fitted with a workstation, enabling the crew to choose the most economic form of energy generation
world-renowned workforce in ocean robotics, underwater acoustics, tsunamis, coastal circulation, marine geomechanics, ocean structures, and offshore energy generation. Graduates are employed by major corporations, small companies, and consulting firms, as well as major government research laboratories. Rhode
small.” The company has been involved in numerous wave power projects since its formation the early 1990s, taking stabs at various forms of wave energy generation, but has more recently shifted focus to a solution that efficiently serves smaller scale non-grid connected applications offshore where its technologi
commitments have led to increased confidence in the nation’s offshore wind market.In the U.S., a total potential capacity of more than 54GW of wind energy generation is currently being planned, with a total capital investment of over $1.5 trillion by 2030, according to the Business Network for Offshore Wind
commitments have led to increased confidence in the nation’s offshore wind market.In the U.S., a total potential capacity of more than 54GW of wind energy generation is currently being planned, with a total capital investment of over $1.5 trillion by 2030, according to the Business Network for Offshore Wind
and demonstration of conversion technologies. Our underlying mission is to make ocean power a cost-effective, reliable and low-carbon source of energy generation for the whole world.OES was established by International Energy Agency which carries out a comprehensive program of energy co-operation for its
PMSM. It is our practice to always convert a “torque-based” plot to one that is “power-based”, as we feel that power is a better way to communicate energy generation and transmission for vehicles and propulsors. The solid black line represents the motor’s limit curve, the dashed line is a generic propulsor
? We’ve gotten some very positive indicators from the Administration. The Administration has clearly identified national interest in regards to energy generation, and they very specifically include renewable sources. That’s a positive. We also had, after our last sale last month in North Carolina which
are driving change. To meet demands for cleaner more efficient power, owners are examining the potential for less conventional methods of energy generation and storage – such as fuel cells, lithium-ion batteries, super-capacitors, flywheels, wind and solar – to propel their vessels. In the workboat
Fund monies for low carbon and renewable energy development, which parts of the UK have used to support the development of early stage wave and tidal energy generation technology, including substantial investment in Wales. This money is seeking to help these technologies reach a stage at which they can compete
ronments. The new agreement will address speci? c techni- cal gaps in the UUV defense and offshore energy markets especially for long duration, multi-payload mission opera- tions where communications are often denied or restricted. As part of the new alliance, Metron’s Resilient Mission Autonomy portfolio
Image courtesy Kongsberg Discovery Image courtesy Teledyne Marine New Products Teledyne Marine had its traditional mega-booth at Oi, busy start to ? nish. Image courtesy Greg Trauthwein offers quality sub-bottom pro? ling capability without the need tion of offshore windfarms. GeoPulse 2 introduces new
impressed. There we found long-time the Quadroin achieves speeds of up to 10 knots, minimizing friend and Greensea IQ CGO Rob Howard for an early start. energy consumption and enabling versatile deployments. The initial series of Quadroin prototypes, developed in col- laboration with Hereon for the Helmholtz
to 33Ah. The third line (black) shows the capacity on the seventeenth discharge, further reduced to 29Ah. Starting voltages are all above 12v, while the energy capacity is progressively reduced. Max discharge rate is 1/7C. of a larger battery pack. Once used, they are discarded. Secondary cells or batteries
$189, while the Pro version is just $40 more. suffer longevity issues with deep discharge, but this may not be The CBA measures the actual amount of energy stored in a an issue if only a limited number of deployments are expected. battery, and reports that in units of amp-hours or watt-hours. The system
, Vol 162, #3849, Oct 4, 1968 are operated at a lower potential to prevent gas generation, meaning they are never fully charged, resulting in the low- est energy density of all secondary batteries. They have low Figure 4 self-discharge rates, and no memory effects. They cannot be fast charged. They do have
? Lithium (Lithium-thionyl chloride, Li-SOCl2): These memory effects. The condition describes the way these bat- primary cells have the highest energy density of all common teries gradually lose their maximum energy capacity if they cells, and the ability to deliver large amounts of current in a
to discharge current over a period of time, measured erate Discharge Rate. If the actual rate exceeds that moderate in amp-hours. A battery’s energy, measured in watt-hours, is discharge rate, the battery will be depleted faster due to in- its capacity times its average potential. A battery pack
regulated industry in the world.” How- ever, commercial success depends on many factors, not least a predictable OPEX. Over the past four years, SMD has worked with Oil States Industries to calculate cost per tonne ? gures for prospective customers. Patania II uses jet water pumps to Oil States’
travels ef? ciently in water, hydro- phones are bene? cial for detecting earthquakes over large distances as well as volcanic activity that releases energy into the water. Caplan- www.marinetechnologynews.com 23 MTR #3 (18-33).indd 23 4/4/2024 9:08:25 A
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TECH 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)
. About the Author For glider users working in ? sheries and conservation, Shea Quinn is the Product Line Manager the Sentinel can run several high-energy passive and active of the Slocum Glider at Teledyne Webb acoustic sensors, on-board processing, and imaging hardware Research. Quinn came to Teledyne
in strong currents or other dif? cult ocean condi- 8 different sensor or hardware integrations. tions,” said Quinn. “The size of the Sentinel gives it the energy capacity to in- The Slocum Sentinel Glider uses the established piloting, crease mission length to over 2 years; or users can ? t more ? ight control
of platform has seen over ity: longer missions, more sensors – the standard Slocum Glider through an the past two decades, growing from especially high-energy sensors – and increased diameter to gain better volu- emerging technology to one of the most the need to operate in more diverse metric ef? ciency
Writers Kevin Hardy number of team members sent to speci? c events.. Celia Konowe We have media serving the global maritime, subsea, offshore energy, ports and logistics Edward Lundquist David Strachan markets, which in this context means that we attend a lot of exhibitions and conferences. Since
work would also demand a regulations to help digitalization nurture scaling-up of solutions. review of SOLAS formulations for the decarbonization. New energy saving devices, alterna- design, planning and testing of ships, “I don't say that crews must be soft- tive fuels, carbon capture, batteries and and
to be bunkering operations for off- Demand for the alternative fuel seems to gain momen- tum in 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
class notation to America, Crowley said on social media. The newbuilds will Ever Top, a Neopanamax container vessel owned feature ME-GI engines from MAN Energy Solutions that are C by Evergreen and equipped with an onboard CO2 capable running on cleaner burning LNG to slash greenhouse capture and storage
SIMULATION "A simulated vessel ? ooding can help teams work together to solve the challenge using different systems on the bridge." – Jussi Siltanen, Lead, "The gami? cation of Product Marketing, learning makes it fun." Safety Solutions at NAPA – Captain Pradeep Chawla, Founder, MarinePALS Image
RADM PHILIP SOBECK, MILITARY SEALIFT COMMAND With COVID, we had to make some hard choices for our Do your CIVMARs have upward mobility? mariners because we couldn’t rotate. Many of our mariners The Navy has Sailors who become “Mustangs,” and work found other employment, and were able to use their skills
them do understand, but I think there’s more work projects and lease areas. Virginia Offshore Wind and Revolu- to do in that regard to meet the renewable energy goals.” tion is in construction; Southfork is into installation, “so Or- Also, he noted that “the easing of Jones Act requirements sted remains a
to hire key in- oil and gas platforms, the holy grail of rigorous dividuals and partner to provide best-in-class solutions.” R conditions in offshore energy production. From Also – like most companies in the maritime and offshore that start he – like most other burgeoning leaders in the sector sectors
served by engines and (space for) a bunkering system. Currently metha- CTVs. Oil & gas offshore support vessels have been widely nol is a preferred energy carrier although hydrogen and liquid deployed to support construction logistics. South Korea, Ja- organic hydrogen carriers also feature. pan and