(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 additionally used as an expendable ballast weight
battery packs, di- If sealed with a rubber diaphragm, the battery must be vent- vided into three buses. The sub could operate off a single ed to manage gases formed during charging. (Myers, 1968) bus in emergency mode. All power and control signals were An innovative means of pressure compensation was
The 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
FEATURE 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
SYSTEM just mapped. I have ‘discovered’ many mountains, hills, valleys and canyons that APPLICATIONS would rival anything seen on land.” • Shallow Gas Hazard Surveys • Oi shore Wind Turbine Phase two, mapping inside the caldera, • Geotechnical InvesO gaO on • Sand Resource InvesO gaO
Editorial NIWA-Nippon Foundation TESMaP/ Rebekah Parsons-King www.marinetechnologynews.com ast month marked the resounding NEW YORK 118 E. 25th St., New York, NY 10010 return of Oceanology Interna- Tel: (212) 477-6700; Fax: (212) 254-6271 tional in London, perennially one Lof the world’s most important
indicator (CII) meeting the shipping industry’s goal for id advances in digital technology are and EU Emissions Trading Scheme are net-zero greenhouse gas emissions by changing the way ships are operated. only early milestones on the regulatory around 2050. He also believes maritime “The maritime education
Consulmar Crowley's New 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
environment, which in turn can from vessel drawings. The academy program also includes reduce the time they need to spend on a simulator. This saves gas handling operations and engine room simulation courses time and money and frees up simulator time for others. offered by GTT Training and the Thet
wind. The subsidies won’t be a plentiful, and then a second on a luf? ng jib. This reduces the time it would there won’t be the same downturn in oil and gas that made all ordinarily take, weeks, to recon? gure the wiring of an ordi- the high-spec construction vessels available at attractive rates, nary
old or older and need to be that are government owned and operated ships, government replaced. We’re talking all the way from steam to diesel and some gas turbines. The commercial world doesn’t use owned and contract operated, and contract owned and con- steam any more, but we still have quite a few steam-pow-
with our continued support to the in a UK design ? rm working in the North Sea marine industry,” said Langford. “We continue 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
starts during its adolescence, common mantras are ‘learn from the established European model’ and ‘embrace technology transfer from the offshore oil and gas sector.’ In Robert Langford, the American Bureau of Shipping has all of that and more bundled in one neat package. Langford recently visited with
exposed to redeployment risk and there re- mains a concern that overbuilding of a commoditized vessel may result in future oversupply as seen in the oil & gas OSV space in the 2008-2014 period. www.marinelink.com 19 MR #4 (18-33).indd 19 4/5/2024 8:13:37 A
MARKETS & gas activity returns, we anticipate that supply of the vessels The Question of Emissions to offshore wind projects will reduce, driving demand for ad- Given that SOVs and CSOVs operate in a segment target- ditional CSOVs. ing reduced emissions, and many operate in the North Eu- Outside of China
to a wind turbine OEM or offshore wind in-built crane and gangway. farm operator to service and maintain equipment dur- ¦Tier 2: Generally, oil & gas tonnage (MPSVs, PSVs, ing the operations period of the wind farm. A typical etc.) with ? xed gangway, serving oil & gas and SOV will accommodate
from gasoline to methanol, but compared to just buying an EV After some pondering, I think I can reduce it to this logi- today that is a pointless exercise. It would actually make more cal sequence: sense to buy a plug-in hybrid that is con? gured for methanol It is the carbon. We want zero carbon as
Once there is plentiful ing vehicle components. It was unclear if it includes emissions green methanol, existing methanol vehicles will automatically for gasoline production or counts carbon produced by gasoline become zero carbon transportation. combustion alone (one gallon of gasoline produces 20 pounds
culture of continuous improvement and Cooper safety awareness. Captain Aaron Cooper is a Master Mariner with 30 years of experience in the oil and gas industry. He is the programmes A Cultural Shift director at OCIMF. With standardized data collection and sharing protocols, THE LEADER SLIDING
Editorial MARITIME REPORTER AND ENGINEERING NEWS his month’s coverage is M A R I N E L I N K . C O M almost an afterthought HQ 118 E. 25th St., 2nd Floor following the tragedy that New York, NY 10010 USA T +1.212.477.6700 Tunfolded in Baltimore in the wee hours of Tuesday, March 26, CEO John C.
Ma- gic planning experience in the ter Mariner with 30 years of expe- rine Learning Systems, maker of energy and maritime sectors. rience in the oil and gas industry. MarineLMS. CONTACT INFORMATION: He is the programs director at Lundquist Email: [email protected] OCIMF. He has worked at Chev- Laursen
People & Companies Nevey to Head TAI Hires Kalla Washington State Ferries TAI Engineers appointed Amer Steve Nevey has been selected to Kalla as director of production design. serve as assistant secretary for the FMC Names Usman CIO Washington State Ferries Division, Nevey Schwandt succeeding Patty
in the U.S. ? eet. It features four Wabtec 4x16V250MDC EPA Tier 4 marine diesel gensets developing a combined 24,000 horsepower and utilizing exhaust gas recirculation technology to reduce emissions to sub-Tier 4 levels. The General Arnold is 290 feet long, 72 feet wide, has a maximum digging depth
There are ? ve major paint catego- lenges in shipyards is managing small building is a multifaceted endeavor ries in new construction shipbuilding: parts, which are prone to surface rust that demands integrative systems before installation. Optimizing the planning, as well as adoption of new 1.