Engine Technologies
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- Combat Cold Corrossion via Condition Monitoring Maritime Reporter, Jul 2014 #56
Parker Kittiwake explains why frequent condition monitoring is the most effective measure in combating the recent cold corrosion phenomenon
The recent trend in favoring newer generation engines which offer improved fuel consumption by using a longer stroke reflects the marine industry’s focus on energy efficiency. While this design does aid operators in reducing fuel consumption, it has also created the new issue of cold corrosion. The longer stroke allows the cylinder walls to cool more than with older engine designs, allowing water condensation to form on the surface which then reacts with the sulphur dioxide in the combustion gases to form sulphuric acid, a corrosive element which damages the liner surface. The iron compounds formed by this process are then flushed into the cylinder oil, leading to excessive wear of the cylinder liner with the cost of a replacement at an average cost of up to $150,000.
To benefit from the more fuel-efficient engines without creating a related issue that could potentially cause damage to costly engine parts, operators need to carry out effective and accurate condition monitoring. In recent service letters, MAN Diesel & Turbo has reiterated the importance of monitoring of the conditions within the cylinder chamber in order to minimize the effects of cold corrosion. Having conducted extensive research into the issue, Parker Kittiwake have concluded that identifying the level of damaging corrosive elements within the cylinder chamber and understanding the processes which lead to these levels building up is the most effective way of preventing wear. Frequent testing provides ship owners with a comprehensive overview of conditions within the cylinder chamber, allowing operators to avoid costly repair bills by addressing harmful levels of corrosive elements before they cause damage.
To obtain an indication of the level of corrosion within the cylinder operators can measure the concentration of iron compounds in used cylinder oil. Once the underlying causes have been identified and understood they can be eradicated or limited, preventing cold corrosion from causing damage. Most commonly available monitoring tests indicate the total iron figure in the cylinder oil, including both metallic and non-metallic compounds. These elements have differing properties and are caused by distinct processes. Iron particles worn from the cylinder liner by cat fines are metallic and can be detected by onboard ferro-analyzer tests. However, non-metallic compounds such as iron sulphate are caused by reactions in the cylinder liner during the combustion process, and these cannot be detected magnetically. In order to identify the causes of corrosion ship owners need to monitor the levels of both metallic and non-metallic elements separately so that preventative measures can be taken.
With accurate information key to preventing corrosion, shipowners need information. While there are onboard testing solutions available, these often take several hours to complete and do not provide separate data for the level of metallic and non-metallic iron compounds in the sample.
The recently launched Parker Kittiwake Cold Corrosion Test Kit is designed to give the most comprehensive analysis of corrosive elements in cylinder lubricants, providing a measurement of non-ferrous iron compounds present in a sample almost instantly, negating the need to send samples to a laboratory for analysis and avoiding the time and cost this incurs. By having quick and simple access to this information onboard, operators can identify where adjustments need to be made to alter the operating conditions within the cylinder in order to minimize corrosive wear and reduce cost. The test kit, when used in conjunction with ferro-magnetic analyzers, will indicate the levels of both metallic and non-metallic iron compounds so that operators can isolate and address the different processes which result in these corrosive elements being formed. As the issue of cold corrosion increasingly gains recognition, OEMs are looking to identify ways to minimize the effects and prevent damage. As a result many OEMs are now advocating the use of higher Base Number (BN) lubricants in engines with a longer stroke, MAN Diesel & Turbo now recommend lubricants with a BN of 100 or higher, and so it becomes more important to monitor the cylinder oil to understand the effects of this change on the conditions within the cylinder chamber. Scrape down oil is continually exposed to acidic combustion products that need to be neutralised before they corrode engine parts. By frequently testing the residual BN of used cylinder lubricant, operators can ensure that alkaline reserve levels within the oil are sufficient to neutralize these acidic products, preventing unnecessary corrosive damage. Parker has recently updated the Digi TBN Test Kit which measures the residual BN levels in used cylinder oil, providing an onboard figure in minutes. This allows operators to monitor the efficiency of cylinder lubricants over a long period of time, maximizing the potential life of the product as well as saving both the time and cost incurred with repairs resulting from corrosive damage.
Innovative engine technologies offer attractive benefits to ship owners by simultaneously addressing two of the greatest challenges facing today’s shipping industry; fuel reduction and emissions control. With immediate access to the necessary data through onboard condition monitoring tests, they are better armed against cold corrosion and can reap the benefits of eco-efficiency, minus the unwelcome consequences.(As published in the July 2014 edition of Maritime Reporter & Engineering News - http://magazines.marinelink.com/Magazines/MaritimeReporter)
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- Finland: A Maritime Powerhouse Maritime Reporter, Feb 2015 #46
, around 70 % of the industry’s revenue. Major players include Wärtsilä, Rolls-Royce, ABB and Steerprop, specializing in propulsion, power and engine technologies. The industry employing around 5,000 persons is known for its high technological expertise and uncompromising quality in offshore as well. Finnish
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- New Fuel Regs Drive Scrubber Business Maritime Reporter, Mar 2017 #38
President Roger Holm has said that the company’s proactive development of exhaust gas cleaning systems and broad offering in gas and dual-fuel engine technologies means that the company is in a strong position to help ship owners implement plans for compliance with the new regulations: With its technology
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- Q&A with Wartsila CTO Matti Kleimola Maritime Reporter, Sep 2004 #46
, scientists etc.). The Working Groups are established by the Council to prepare recommendations and actual reports on subjects of combustion engine technologies. Some examples of working areas will be: Emissions, Fuels, Automation, Classification, Lubrication, Users etc. The activity will give direct bene
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- Get Your Motors Runnin’ Marine News, Jul 2014 #22
teams are so focused on EPA compliance that tunnel vision has become consequential and we have seen little to no developments regarding other engine technologies; specifically hybrid or LNG solutions. Does the advent of Tier IV mean the end is in sight? Propulsion manufacturers will continue to focus
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- Maritime Propulsion: Select Your Engines Wisely Marine News, Jul 2014 #22
teams are so focused on EPA compliance that tunnel vision has become consequential and we have seen little to no developments regarding other engine technologies; specifically hybrid or LNG solutions. Does the advent of Tier IV mean the end is in sight? Propulsion manufacturers will continue to focus
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- PROPULSION: LNG as a Fuel Marine News, Sep 2019 #38
fossil fuel currently available at scale; its use as a marine fuel is supported by an emerging network of infrastructure and advanced engine technologies that have been proven in practice.As such, with the sulfur cap looming at the end of the year and the IMO’s GHG strategy, it is seen as a primary
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- Expect the Unexpected on the Inland Waterways Marine News, Sep 2021 #24
describes the company’s exploration of electric propulsion, alternative fuels (including hydrogen and methanol) as well as dual and multiple engine technologies. In the same video, executives from Campbell Transportation (active in both dry and liquid sectors) describe a program where 20% of its fleet
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- Power Play: Engine Suppliers Prepare for 2020 Maritime Reporter, Aug 2017 #60
, which released a statement that the company’s proactive development of exhaust gas cleaning systems and its broad offering in gas and dual-fuel engine technologies meant that it was well positioned to assist fleet owners implement plans for complying with the new regulations. Wärtsilä also stated that it
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March 2024 - Marine Technology Reporter page: 48. . . . . . . . . . . . . . . . . . . .www.blueprintsubsea.com . . . . . . . . . . . . . . . . . . . . . .+44 (0) 1539 531536 5 . . . . . .Deep Ocean Engineering, Inc. . . . . . . . . . . . .www.deepocean.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(408) 436-1102 33 . . . . .Detyens Shipyards
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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: 45ronments. 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
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March 2024 - Marine Technology Reporter page: 43Image 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
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March 2024 - Marine Technology Reporter page: 41Image courtesy Outland Technology Image courtesy Exail Image courtesy Submaris and EvoLogics Vehicles The ROV-1500 from Outland Technology represents a leap forward in underwater robotics, a compact remotely operated vehicle (ROV) weighing in at less than 40 lbs (19kg) the ROV- 1500 is easy to transport
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March 2024 - Marine Technology Reporter page: 40NEW TECH OCEANOLOGY INTERNATIONAL 2024 All photos courtesy MTR unless otherwise noted NEW TECH, PARTNERSHIPS LAUNCH IN LONDON With Oceanology International now one month in the rear-view mirror, MTR takes a look at some of the interesting technologies launched before, during and after the London event.
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March 2024 - Marine Technology Reporter page: 33and hovers above the sea- bed, picking nodules with robotic arms. CEO Oliver Gunasekara cites three unique developments: the battery-oper- ated buoyancy engine, fast-acting robot- ic arms and the AI algorithms that guide them, identifying and avoiding nodules with visible life present. A second-generation
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March 2024 - Marine Technology Reporter page: 32range is available in a vari- processing 1.3 million tonnes of wet nodules per year, and the ety of sizes to suit vessel and client requirements. Engineered company is also exploring opportunities for the construction to have a low submerged weight, these vehicles are made with of a U.S. re? nery
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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: 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: 26completed with data from the TESMaP voyage on Tongaroa and later ? lled in by Maxlimer from SEA-KIT International. Jasmin McInerney, Ocean Instrument Engineer, Employment of technology during talking to crew in the workboat deploying the glider. Phase One of TESMaP. RV Tangaroa ? anked by the islands
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March 2024 - Marine Technology Reporter page: 25Auerbach explained that ideally, “one ? ed layers of geothermal activity,” noted changes over an area of 8,000 km2. They would have both instruments: seismom- Skett, “and the change in salinity and dis- found up to seven km3 of displaced ma- eters to detect and locate subsurface ac- solved particles for
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March 2024 - Marine Technology Reporter page: 23elatively inactive since 2014, the Hunga Tonga–Hunga Ha‘apai (HT-HH) submarine volcano began erupting on December 20, 2021, reaching peak intensity on January 15, 2022. This triggered tsunamis throughout the Pa- R ci? c, destroyed lives and infrastructure, and generated the largest explosion recorded
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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: 19control 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 limited
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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: 17• Integrity assessment, and otherwise covered, e.g., by rock dump. As for depletion of • Mitigation, intervention and repair. sacri? cial anodes, this can be dif? cult or even impossible to Selecting the best method for collecting the data these work- estimate due to poor visibility, the presence of
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March 2024 - Marine Technology Reporter page: 16TECH FEATURE IMR Image courtesy FORCE Technology OPTIMIZING CATHODIC PROTECTION SURVEY USING NON-CONTACT SENSORS By Svenn Magen Wigen, FORCE Technology he principle behind sacri? cial anodes, which are water structures, reducing the need for frequent repairs and used to safeguard underwater pipelines
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March 2024 - Marine Technology Reporter page: 15. He simultaneously for months at a time, extending deployments earned his Bachelor of Science in Electrical even in remote locations like the Antarctic. Engineering and Mechatronics at Villanova And for users who tend to operate in areas with drastic University and a Master of Engineering changes in water
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March 2024 - Marine Technology Reporter page: 14capability to The Slocum Sentinel Glider will be driven by the industry’s our customers,” said Dan Shropshire, Vice President Business largest buoyancy engine, with a volumetric capacity of 4 li- Development and Program Execution, Marine Vehicles, “The ters – more than double any other available glider buoyancy
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March 2024 - Marine Technology Reporter page: 13long-term data gathering of all kinds. In response, Teledyne Webb Research has announced the launch of their new- est product in the ? eld of buoyancy engine driven underwater vehicles: the Slocum Sentinel Glider. The Slocum Sentinel Glider builds on the technology of Teledyne Webb Research’s Slocum G3
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March 2024 - Marine Technology Reporter page: 11assist in identifying mines and act as a neutralization device. About the Author Bottom mines pose even greater chal- David R. Strachan is a defense analyst and founder of lenges. Unlike contact mines, bottom Strikepod Systems, a research and strategic advisory mines utilize a range of sensors to
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March 2024 - Marine Technology Reporter page: 9from marinas along the western coast. The exact number of lizing laser detection systems can detect mines just below the mines, as well as their locations, remains largely a mystery, surface, even those hiding in murky water. The Airborne Laser although reports suggest that over three hundred have been