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Marine Electronics

2018:  FEB | MARCH

January 2017 Issue

Kongsberg, AML Test
Sensors for Fish Farm

Kongsberg and AML Oceanographic have teamed up to conduct trials in Norway to combat biofouling on underwater fish farm sensors. Kongsberg’s Contros HydroFlash O2 subsea oxygen sensors have been installed with the AML Oceanographic Biofouling Control system, which can enable them to remain in place without cleaning for up to 18 months. Fouling prevents accurate readings from sensors. Typical subsea fish farm sensors require cleaning approximately once a month. AML’s system is more economic and prevents injection of pollutants into the environment to combat biofouling.

IRIS-3D Wins
Innovation Award

Peak Well Systems’ IRIS-3D technology has won the Innovation Award at the annual Energy Institute (EI) Awards held in London. The awards recognize the highest level of commitment to serving society and outstanding achievements in the energy sector. For downhole applications, IRIS-3 can extend the performance of traditional elastomer seals, enabling an entirely new suite of wellbore sealing systems. Under development is the ability of IRIS-3D to develop a new range of high-performance medium-expansion plugs and the potential of IRIS-3D in high-expansion seal systems.

Clearview System for Divers
Evolves with Continued Testing

Blackwater Vision has developed the Clearview System I (CVS-I), a digital communications, data and control system for divers. In December 2012, it was successfully demo tested with the Navy in San Diego, California. After significant improvements, in September 2015, in 1.5-in. visibility in Morgan City, Louisiana, it was demo tested by Louisiana Tech College, with clear color inspection visibility obtained out to 12 in. The feedback from those tests helped guide the development of the Clearview System II, a modular, analog system that could be tailored and easily integrated into an existing system. Demonstration testing of the CVS-II will be performed by two dive schools in January: the new Commercial Dive International in Goodyear, Arizona, and the 40-year-old Ocean Corp. in Houston, Texas.

GE, Maersk Partner
On Data Analytic Pilot

GE and Maersk Drilling have partnered to collaborate on a data analytic-driven pilot project to increase Maersk’s drilling vessels’ productivity and reduce maintenance costs by up to 20 percent. SeaStream Insight, GE’s latest innovation in marine asset performance management, will be deployed, and the pilot project will be carried out on one of Maersk Drilling’s XLE rigs for 12 months.

Cobham SATCOM, SpeedCast
To Provide Maritime Antennas

Cobham SATCOM and SpeedCast International Ltd. have concluded a global framework agreement covering the provision of maritime stabilized antennas for high-speed connectivity at sea. SpeedCast has been given distribution partner status, and Cobham SATCOM’s SAILOR and Sea Tel Brand VSAT and TVRO antennas now extend across SpeedCast’s global sales and support network. Cobham’s stabilized antenna systems for Inmarsat’s new Fleet Xpress service will become a key part of SpeedCast’s service portfolio.

Research Project to Automate
Subsea Pipeline Inspection

In the last 10 years, subsea inspection has advanced much in sensors and high-definition cameras, but the annotation process remains mostly manual. N-Sea and the University of Strathclyde’s Institute of Sensors Signals and Communications have secured substantial funding from the Data Lab Innovation Centre for an innovative research project to automate subsea pipeline inspection. The collaboration combines N-Sea’s inspection expertise with the university’s innovative data analytics research.

Online Risk Assessment
For Oil, Gas Industry

To help the oil and gas industry get more value from QRA reporting, DNV GL has launched a new online quantitative risk assessment service called MyQRA to provide an interactive dashboard allowing a view of project and asset risk results in ways not possible in a static QRA report. The dashboard makes it easier to understand hazards and make day-to-day decisions. DNV GL has also issued a new Recommended Practice (RP) - DNVGL-RP-G107 - providing guidance on more efficient updating of risk assessments during operational phases.

While quantitative risk assessment (QRA) reports are static, offering certain information at a fixed point in time, they generate additional information that can be of significant additional value. DNV GL’s new online service, MyQRA, harnesses this, unlocking the detailed information from QRA studies in ways not possible in a typical, fixed report. The service aims to help both technical and nontechnical oil and gas professionals better understand hazards and make day-to-day decisions more effectively. It is available free of charge to companies who purchase QRA studies from DNV GL.

Lithium-Ion Alternative
For Rechargable Devices

Lithium-ion batteries are ubiquitous in smartphones and other rechargeable devices, but the price of lithium is rising. A new study features sodium-air (sodium-oxygen) batteries using seawater as one of the most promising alternatives, the American Chemical Society reported. Researchers have been using seawater as the catholyte, an electrolyte and cathode combined.

A constant flow of seawater into and out of the battery provides the sodium ions and water responsible for producing a charge. The team prepared a catalyst using porous cobalt manganese oxide nanoparticles. The pores create a large surface area for encouraging the electrochemical reactions needed to produce a charge. A hard carbon electrode served as the anode. The resulting battery performed efficiently over 100 cycles, with an average discharge voltage of about 2.7 V. This doesn’t yet measure up to a lithium-ion cell, which can reach 3.6 to 4.0 V, but the advance is significant.

Echosounder Mounted to
Glider for Fish Surveys

NOAA’s Beaufort Laboratory (National Centers for Coastal Ocean Science and Southeast Fisheries Science Center) collaborated with the Center for Ocean Technology and College of Marine Science of the University of South Florida to instrument an echosounder into an ocean gilder to extend surveys of pelagic and demersal fishes associated with rocky reefs in the Gulf of Mexico and Southeast U.S. Atlantic. ASL Environmental Sciences supplied a 200-kHz single-frequency scientific echosounder, a modification of ASL’s Acoustic Zooplankton and Fish Profiler (AZFP), to Teledyne Webb Research (TWR) for use on TWR’s Slocum glider. During a 14-day sea trial, demersal fishes associated with a rocky reef adjacent to a gas pipeline were detected. Pelagic schools and plankton layers were also discernible in the water column and linked to water quality properties such as chlorophyll and density recorded simultaneously by the glider. Following more sea trials, the team expects to evaluate the feasibility of using a glider-based echosounder in surveys of demersal species associated with broader hard-bottom reef habitats in the Gulf and Southeast U.S., with extensions to developing glider echosounder surveys for demersal and midwater/pelagic species in other fishery and ecosystem management regions.

VCM Shows Success
On MTU Gas Engine

Durability field-test results of ABB’s variable valve train system, Valve Control Management (VCM), have shown success of the technology on an MTU high-speed gas engine. The successful running of each VCM actuator for 7,000 hr. on an engine is an important milestone for the forthcoming serialization of this technology. Typically, a durability test for serialization lasts around 5,000 hr. for large engines.

VCM is an electrohydraulic valve train system for four-stroke gas and diesel engines, developed by ABB for and in collaboration with engine builder MTU, and optimized for its engines. The technology originates from a similar principle in the automotive industry, allowing a stepless variation of engine valve timing and valve lift from one engine cycle to the next, adjusting the amount of air or air-fuel mixture entering the cylinder. As a result, it increases the adaptability of engine performance in multiple ways, providing the flexibility for best performance and fuel economy at varying loads, speeds, in various ambient conditions and with differing fuel qualities.

Internet of Things
For Port of Cork

Net Feasa Ltd. announced the successful implementation of a location and sensor services Internet of Things (IoT) Network in the Port of Cork. Utilizing the next-generation LoRa-equipped wireless networks with geolocation capability, Net Feasa worked in cooperation with Semtech Corp., a supplier of analog and mixed-signal semiconductors, Pervasive Nation (CONNECT), an Irish nationwide research and innovation IoT testbed, and OrbiWise, a leading provider of infrastructure solutions for IoT networks to provide this solution.

The extremely power-efficient LoRa solution will potentially open up the mass market for container and asset tracking at ultralow cost.

2018:  FEB | MARCH

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Sea Technology is read worldwide in more than 110 countries by management, engineers, scientists and technical personnel working in industry, government and educational research institutions. Readers are involved with oceanographic research, fisheries management, offshore oil and gas exploration and production, undersea defense including antisubmarine warfare, ocean mining and commercial diving.