miscible 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
Auerbach 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
FEATURE OCEANOGRAPHIC INSTRUMENTATION & SENSORS DTIS from above, during the tow over the summit of New Volcano 1. This area is roughly 50km from Tongatapu and representative of how Hunga-Tonga Hunga Ha’apai would have looked. Image courtesy NIWA-Nippon Foundation TESMaP / Rebekah Parsons-King 24
About the Author vey with the pipe tracker is not required, resulting in signi? - Svenn Magen Wigen is a Cathodic Protection and 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
sensor options for longer mission periods. 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
SMART 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
Tech Files Latest Products, Systems and Ship Designs Zero-Emission Mooring Service of a Tanker Consulmar achieved a milestone by executing what it calls ing boat Castalia, which operates on full electric propulsion. the world's ? rst zero-emissions mooring service for a tanker. Equipped with two 150 kW
CRANES & OFFSHORE WIND HLP is developing a crane that will enable tower HLP is developing a crane that will enable pieces to be stacked components such as towers to be stacked in multiple layers on vertically in marshalling areas. installation vessels. HLP is developing a ring crane capable of 6
FEATURE A closeup of a blade installation process taken via drone. A blade handling system is apparent (in yellow). Images courtesy of Mammoet requirement for the development of these cranes, particularly ling area. This would result in a major time and fuel saving. in ? oating offshore wind,” says
CRANES & OFFSHORE WIND Cadeler’s new NG-20000X class vessels will have 2,600t cranes, and its new NG-20000F class vessel will have a 3,200t crane. Similar new vessels for Havfram will have a crane of approximately 3,200t, as will Van Oord’s KNUD E. HAN- SEN-designed newbuilding currently being built in
INTERVIEW WE ARE ENGAGED WITH MULTIPLE US OSW WIND DEVELOPMENTS AND SEEING AN UP-TICK FOR CVA, TECHNOLOGY REVIEW AND RISK REDUCTION SERVICES IN EARLY DEVELOPMENT PHASES. WITH NEW LEASE ROUNDS COMING AND NEW OPPORTUNITIES, WE DO NOT SEE A BIG SLOWDOWN FOR OSW DEVELOPMENTS APART FROM THE OBVIOUS
MARKETS SOVs – Analyzing Current, Future Demand Drivers By Philip Lewis, Director of Research, Intelatus © Björn Wylezich/AdobeStock t a high-level, there are three solutions to transferring Lower day rate CTVs are often used for daily transfer of technicians from shore bases to offshore wind farms
hydro-acoustic design of a propulsor that delays cavitation meets its underwater noise limits. This will require specialized inception and cavitating area. The third approach should be test sites or specialized mobile underwater testing equipment. isolation mounting of a vibro-active equipment and
REGISTER NOW Seawork celebrates its 25th anniversary in 2024! The 25th edition of Europe’s largest commercial marine and workboat exhibition, is a proven platform to build business networks. Seawork delivers an international audience of visitors supported by our trusted partners. Seawork is the
Products 1 2 VETUS Maxwell In-Mar Solutions 3 Furuno ABB 4 for workboat operators encompasses EH Group 1. Heavy Duty 5 three large-sized MFDs with wide, all- Windscreen Wiper glass displays: the 16” TZT16X, 22” Heavy-duty wiper has a thermal cut- TZT22X and 24” TZT24X. Powered out in
Tech File Optimizing Blast and Paint Processes in New Construction Shipbuilding By Colin Gallagher, Director of Shipyard Optimization, BlastOne International The ef? cacy of surface preparation and coating appli- 1. Raw material entry cation in the new construction shipbuilding industry is 2. Painting
Feature Navigation cables, 9 miles of cables connecting substations and up to blurred, undependable information for vessel crews. two export transmission cables with “associated secondary In the fairways Notice, the USCG references the NAS cable protection” (text is from the permit) within a 42-mile-
the rule new projects might be set within historical vessel routes, con? icting with existing maritime uses and users. The USCG’s fairway proposal is based on BOEM’s exist- ing WEA projections (contained in the December Notice). The 18 proposed fairways, traf? c separation schemes and precautionary
Feature Navigation inside the approved lease area as a requirement under the BOEM’s attention to the USCG’s recent 27-page Federal terms and conditions of a speci? c lease. Register Notice (January 19) to establish “shipping safety • For structure siting, the USCG (again) “insists” that fairways along
Feature Navigation “Wind Turbines: The Bigger, the Better” – USDOE Of? ce of Energy Ef? ciency & Renewable Energy, August 24, 2023 ast December the Bureau of Ocean Energy Man- Agencies write: we want to advance wind energy, but ocean agement (BOEM) published a proposed sale no- areas can only yield so
Column Cybersecurity The Maritime Industry Has Unique Cybersecurity Challenges By Joe Nicastro, Field CTO, Legit Security With supply chain attacks on the rise, works, while foundational, have not evolved in tandem and nation-state attackers constantly looking for new ways with these digital threats
Insights tion on a couple of issues, including engine room crew- For AWO, as an organization, what is its top ing on ATBs with automated systems. This is an issue priorities for the coming six to 12 months and that Congress thought that it addressed in the last Coast what’s being done to address them? Gua
Insights century technology in 2024.” That’s an area of focus. industry. We want to do that in a realistic way. These are We also want to make sure that we have workers on our great careers where a hardworking person can make a six- vessels who are ? t for duty. One of the things that we have ? gure
Q&A Increasingly, cyber security has been gaining focus as an area of concern across maritime supply chains, and recently the Coast Guard has been tasked with creating and enforcing maritime cyber standards. What do you hope to see from these standards as they are drafted and put to use? Two key