Flexible mobdock repair method for underwater shaft seal repairs developed by Hydrex

Diver/technician re-welding the rope guard after shaft seal replacement
Diver/technician re-welding the rope guard after shaft seal replacement

Hydrex has developed a flexible mobdock repair method that enables the underwater replacement of all types and sizes of shaft seals. This technology has been successfully used by Hydrex diver/technicians for over a decade. It allows ship owners to keep their vessel sailing, saving precious time and money.

Damaged stern tube seals will cause an increasing amount of oil leaking or water ingress as the damage worsens. By replacing the seals when the damage is first discovered, Hydrex keeps the down time low. The ship can keep its schedule as seal repairs can be performed during cargo operations. This is done by creating a dry underwater working environment around the shaft.

It is not always straightforward to replace seals, because there can be quite a bit of variation in the configurations of the stern tube itself. There can also be complications with the liners, which can be worn down and show ruts. All this is routinely handled by Hydrex teams on the jobs.

In this article you can find a short summary of some of the recent Continue reading “Flexible mobdock repair method for underwater shaft seal repairs developed by Hydrex”

Green light to adopt Methanol given as a sustainable marine fuel

Topic areas of the project’s final reports include the technical feasibility of converting vessels to propulsion using Methanol
Topic areas of the project’s final reports include the technical feasibility of converting vessels to propulsion using Methanol

The Methanol Institute has welcomed the findings of the Sustainable Marine Methanol (SUMMETH) project, which has backed the increased use of Methanol as a marine fuel.

The research concluded that there are no obstacles to the efficient use of Methanol in a converted diesel engine and that smaller vessel conversion projects are feasible and cost-effective, with levels of safety that easily meet existing requirements.

Switching to Methanol would offer immediate environmental benefits, including close to zero SOx and particulate matter emissions and significantly lower NOx emissions compared to conventional marine fuels or biodiesel.

Continue reading “Green light to adopt Methanol given as a sustainable marine fuel”

AMC designs true new hybrid vessel for wind farm crew transfer sector

The systems incorporated within the design are all available and proven, they have been brought together in one innovative design.
The systems incorporated within the design are all available and proven, they have been brought together in one innovative design.

Isle of Wight UK shipbuilder, Aluminium Marine Consultants, recently announced a new 24m true hybrid wind farm crew transfer vessel design.

Six months ago AMC sought to take a step back and look closely at the feasibility of producing a truly innovative and radical vessel that would combine the durability of the existing aluminium crew transfer catamaran and the advances in hybrid power, not just related to marine, but to look beyond into automotive technology.

The vessel is based on proven design and exciting technology, but AMC stresses, one that will go Continue reading “AMC designs true new hybrid vessel for wind farm crew transfer sector”

Netherlands to impose degassing ban on inland navigation vessels

This ban aims to make the air quality around shipping routes better.
This ban aims to make the air quality around shipping routes better.

The Netherlands will impose a nationwide degasification ban for inland navigation vessels. The Minister of Infrastructure and Water Management, Van Nieuwenhuizen, wants the degasification ban to be introduced in the Netherlands by mid-2020.

This ban aims to make the air quality around shipping routes better. Inland shipping vessels often leave harmful emissions in the open air while sailing. The degassing ban must provide about 95% less emissions of harmful volatile substances by 2023.

A taskforce will be created in order to ensure along with the business community that the introduction of this national degassing ban runs Continue reading “Netherlands to impose degassing ban on inland navigation vessels”

IMO adopts climate change strategy for shipping

Nations met at the United Nations International Maritime Organization (IMO) in London recently
Nations met at the United Nations International Maritime Organization (IMO) in London recently

Nations meeting at the United Nations International Maritime Organization (IMO) in London recently have adopted an initial strategy on the reduction of greenhouse gas emissions from ships, setting out a vision to reduce GHG emissions from international shipping and phase them out, as soon as possible in this century.

The vision confirms IMO’s commitment to reducing GHG emissions from international shipping and, as a matter of urgency, to phasing them out as soon as possible.

Continue reading “IMO adopts climate change strategy for shipping”

Improper securing arrangement of sea strainer cover leads to vessel capsizing

Improper securing arrangement of sea strainer cover leads to vessel capsizing
Improper securing arrangement of sea strainer cover leads to vessel capsizing

Shipowners P&I Club has issued a case study about the capsizing of a vessel due to a loose port side sea strainer. Whilst double banked alongside another tug for four months awaiting a placement in dry dock, a harbour tug suddenly developed a list to port. Crew on board at the time quickly investigated to try and determine the point of water ingress, but struggled as the water level reached approximately 1 metre in height in the flooded engine room.

As the engine room crew tried to establish and stop the source of ingress, the deck crew were adjusting the mooring ropes to keep the vessel safely alongside as the vessel listed further to port. Eventually, the master took the decision to abandon the vessel as it was no longer safe to remain on board.

Continue reading “Improper securing arrangement of sea strainer cover leads to vessel capsizing”

Norway targets IMO to halve global shipping emissions by 2050

Norway targets IMO to halve global shipping emissions by 2050
Norway targets IMO to halve global shipping emissions by 2050

Global shipping should set a goal of halving greenhouse gas emissions by 2050, Norway’s government and shipowners’ association said on Thursday before talks by the International Maritime Organization (IMO) in London next week.

Norway’s fleet is worth about $45 billion, the fifth most valuable in the world behind Japan, Greece, China and the United States. Norway’s shipping includes offshore, gas, chemicals, car vessels, dry bulk, crude, crude products and containers.

The IMO, which says international shipping represents about 2.2 percent of world carbon dioxide emissions, will meet from April 9-13 to develop a strategy to combat climate change. Shipping was not included in the 2015 Paris climate agreement.

Continue reading “Norway targets IMO to halve global shipping emissions by 2050”

Lessons Learned from El Faro on main propulsion published by USCG

Lessons Learned from El Faro on main propulsion published by USCG
Lessons Learned from El Faro on main propulsion published by USCG

The US Coast Guard has published a safety alert to inform operators and other interested parties of the role that the main propulsion lube oil system was found to have played in the El Faro incident. They have recommended that operators, especially ships’ engineers, review the operational procedures and limitations of vital propulsion machinery and verify compliance with SOLAS, Classification Societies and regulatory standards.

The El Faro sank along with its 33 crew onboard in October 2015, marking one of the worst maritime disasters in US history. The USCG official report on the sinking of the El Faro revealed that loss of propulsion during heavy weather was contributing to the sinking. The exact operational status of all vital El Faro engineering equipment prior to the casualty could not be determined, but bridge audio recordings indicate that the vessel lost lube oil pressure to the main propulsion turbine and reduction gear bearings, resulting in loss of propulsion.

Continue reading “Lessons Learned from El Faro on main propulsion published by USCG”

Trimble launches marine positioning GNSS receiver

Trimble launches marine positioning GNSS receiver
Trimble launches marine positioning GNSS receiver

Trimble has announced the MPS865 marine positioning system multi-frequency and multi-application GNSS receiver.

The Trimble MPS865 is a versatile and rugged GNSS positioning and heading solution for a wide variety of real-time and post-processing applications for marine survey.

It features integrated communications options such as Wi-Fi, UHF radio, cellular modem for internet connectivity, Bluetooth and MSS satellite-based correction channels.

The patented GNSS-centric technology uses all available GNSS signals to deliver reliable positions in real time. The GNSS receiver provides for the connection of two GNSS antennas for precise heading.

With a modular form factor, the MPS865 is flexible and can be used as an integrated on-board rover receiver, a base station, or a continuously operating reference station. The built-in precise heading feature ensures the receiver is of minimal size, consumes less power, and has less cabling which are all benefits when on-board space it at a premium.

The MPS865 adds new features to improve usability in a Continue reading “Trimble launches marine positioning GNSS receiver”

ABS launches digital e-certificates

ABS launches digital e-certificates
ABS launches digital e-certificates

ABS launches e-Certificates. Continuously available, tamper-proof, independently verifiable and secure digital equivalents of traditional ABS paper certificates, e-Certificates are now available to ABS’ entire classed-fleet, subject to individual Flag Administrations’ authorisation. Traditional paper certificates are always still available.

“E-Certificates are the latest product from ABS’ FutureClassTM program. Defining the future of class focuses on the utilization of data and digital technology to deliver benefits for our clients,” said ABS Chairman, President and CEO, Christopher J. Wiernicki. “ABS’ e-Certificates are a perfect example of how we strive to add value and operating efficiencies for our customers.”

Uniquely, ABS’ e-Certificate system allows a simultaneous, vessel-wide view of all applicable certificates, rather than requiring the user to look up each certificate individually.

Fully compliant with IMO Guidelines, ABS e-Certificates will reduce Continue reading “ABS launches digital e-certificates”

OCIMF releases new information paper about the preparation of a safety management system

OCIMF releases new information paper about the preparation of a safety management system
OCIMF releases new information paper about the preparation of a safety management system

Addressing the need for clear and consistently applied definitions of ‘critical spares’ and ‘critical equipment’ across the industry, this information paper provides guidance on the identification of safety critical spare parts for companies to consider when preparing a Safety Management System (SMS).

The paper, released on 29 March 2018, introduces some boundary conditions to consider and walks through several steps that may be required to identify safety critical spare parts. It is equally applicable to companies managing any type of vessel.

“The identification of safety critical equipment and the need for safety critical spare parts is a complicated subject”, says OCIMF Director Andrew Cassels. “This paper provides guidance on the challenges that may be encountered when considering safety critical spare parts so that a ship owner can strive to efficiently manage their risks.”

Continue reading “OCIMF releases new information paper about the preparation of a safety management system”

Possible new cure for diesel bug

Possible new cure for diesel bug
Possible new cure for diesel bug

A new product that removes water from the bottom of diesel tanks is expected to end all diesel bug problems.

The Diesel Dipper is a self-contained system independent of the engine. Fitted with a 12-volt pump, it is designed to suck water from the floor/bottom of a fuel tank below the fuel suction and by doing so, makers Marine 16 say it eliminates or prevents diesel bug and engine failures.

Marine 16 said: “Water and sludge lying on the bottom of the tank is drawn up into a ‘tank separator’ where it separates from the diesel and collects on the bottom. This accumulated water and sludge is then periodically drained off into a container.”

The clean diesel exits the top of the separator and flows through a Continue reading “Possible new cure for diesel bug”

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