Ship News

Renault eyes wind powered ships to cut supply chain carbon

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Renault eyes wind powered ships to cut supply chain carbon
Renault eyes wind powered ships to cut supply chain carbon

Major French vehicle manufacturer, Groupe Renault, has signed a three year agreement with Neoline, a start up that says it aims to become the first modern shipowner to fully embrace energy efficiency by relying on wind power as its primary energy source. Nearly 60% of Renault’s parts and vehicles are transported by sea.

“Groupe Renault’s objective is to reduce the environmental impact of each vehicle throughout its entire life cycle, from parts transportation up to delivery and end-of-life processing,” says Jean-Philippe Hermine, Vice President, Strategic Environmental Planning Groupe Renault. “In the context of our strategy to explore new sustainable mobility solutions and to continue along the road to reducing our carbon footprint, the solution designed by Neoline, which combines energy efficiency and operational relevance, has truly captured our attention”.

Jean Zanuttini, CEO of Neoline, declared: Continue reading “Renault eyes wind powered ships to cut supply chain carbon”

Problems associated with hidden engine room hot spots

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It is recommended to enhance prevention and protection against such fires and that a proactive inspection and evaluation programme is incorporated as part of the ongoing planned maintenance schedule to ensure all piping systems and equipment is maintained corrected and that design is appropriate.
It is recommended to enhance prevention and protection against such fires and that a proactive inspection and evaluation programme is incorporated as part of the ongoing planned maintenance schedule to ensure all piping systems and equipment is maintained corrected and that design is appropriate.

Article written by Joe Maguire, Technical Manager at Skuld P&I Club. The Club would like to draw attention to the continued dangers of fires which originate in the machinery space also known as engine room hot spots. Specifically, where the cause of the fire is as a result of a flammable liquid spraying onto a hot surface.

Typical root causes for such incidents have been identified as:

– Missing pipe brackets/supports on oil systems leading to increased vibrations and subsequent cracks or even breakage of the oil piping system.
– Missing cup over the fuel injector valve.
– Original insulation or screening of hot surfaces was not maintained correctly.
– Original insulation or screening of hot surfaces was not sufficient for preventing oil spray onto hot surfaces.
– Insulation soaked with oil caught fire when sufficiently heated up.
– Oil leakages from engine components like exhaust valve indicators spraying onto the exhaust manifold.

It is recommended to enhance prevention and protection against such fires and that a proactive Continue reading “Problems associated with hidden engine room hot spots”

The dangers of carrying nickel ore cargo and the associated risks are highlighted by The West of England P&I Club

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A nickel Ore cargo ship - Photo credit: Shipspotting
Photo credit: Shipspotting

The West of England P&I Club has warned operators and others involved of the dangers of carrying nickel ore. Carrying nickel ore can be dangerous, because of the risk of liquefaction of the cargo on passage when the moisture content is higher than the cargo’s Flow Moisture Point (FMP).

After a number of ships being lost, with liquefaction of their nickel ore cargoes suspected of being the cause, the West of England Club published a Notice some years ago addressing the Dangers of Carrying Nickel ore. This Notice is still in forced and was re-issued as No.13 2017/2018 – Dangers of Carrying Nickel Ore from Indonesia and the Philippines – Mandatory Notification Requirements (re-issued).

The Club reminds operators of the risk of liquefaction with this cargo, as showcased by the loss of the ‘Emerald Star’, which claimed the lives of 11 seafarers in October 2017.

In addition, the Club has been informed of Continue reading “The dangers of carrying nickel ore cargo and the associated risks are highlighted by The West of England P&I Club”

BMA releases safety bulletin following nitrogen cylinder fatality

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The examination showed that the damaged nitrogen cylinder had suffered significant corrosion at the point of failure.
The examination showed that the damaged nitrogen cylinder had suffered significant corrosion at the point of failure.

The Bahamas Maritime Authority issued a safety alert regarding the potential serious risk for safety on board a ship where nitrogen cylinder are used as a stored kinetic energy system for launching lifeboats. This alert was issued after the authority obtained information from an ongoing maritime incident investigation conducted by the Transport Accident Investigation Commission, New Zealand.

The vessel had hydraulically powered davits with six power packs, three on each side of the vessel. A stored energy system consisted of a piston accumulator and a bank of four high pressure (180-210 Bar) nitrogen cylinders were fitted to each lifeboat launching davit.

In February 2017, one of the nitrogen cylinders of a stored energy system onboard exploded while being topped up to maintain the correct pressure. A crew member died as a result of the explosion. The findings of the investigation indicate that significant corrosion affected the structural integrity of the cylinder.

The remains of the exploded nitrogen cylinder and other three cylinders from the same Continue reading “BMA releases safety bulletin following nitrogen cylinder fatality”

New method to assess structure durability of aged ships announced by Ship Structure Committee

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The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull.
The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull.

The Ship Structure Committee is pleased to announce the publication of a new report, SSC-474, titled Structural Assessment of Aged Ships, authored by Mr. Gregory Walker, Mr. Brendan Connell and Mr. Sean Kery of CSRA. The detailed 75 page report is available for free using the link at the end of the article below.

The report describes the development of an assessment process to accurately predict the survivability of a corrosion-degraded ship in specific wave conditions. The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull. Pressure and acceleration data from the hydrodynamic model is then input into a Continue reading “New method to assess structure durability of aged ships announced by Ship Structure Committee”

Broken valve causes oil spill while bunkering

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The Swedish P&I Club has described a case of an oil spill during a vessel's bunkering operations which led to an oil spill, the cause of which was a broken valve.
The Swedish P&I Club has described a case of an oil spill during a vessel’s bunkering operations which led to an oil spill, the cause of which was a broken valve.

The Swedish P&I Club has described a case of an oil spill during a vessel’s bunkering operations which led to an oil spill, the cause of which was a broken valve. Following investigation, the Club recommended that all involved parties should be informed when tanks are switched and that the crew must always ensure the valves are completely shut and working.

The incident

The vessel was loading in port and had also planned to bunker fuel using shore trucks. The plan was to load the fuel into port tank 2 and fill it 96%, but the chief engineer changed this just before loading and instead wanted to load port and starboard 3 tanks. The plan was to fill these tanks 90%. The number 3 tanks were half the size of the port and starboard 2 tanks.

The bunker system was lined up to bunker the port 3 tank. Deck scuppers were put in place on deck. The chief engineer then met the truck driver to agree on basic hand signals before connecting the Continue reading “Broken valve causes oil spill while bunkering”

RRS Sir David Attenborough polar research ship launched

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David Attenborough launching the ship
David Attenborough launching the ship

The UK’s polar research ship RRS Sir David Attenborough was launched into the River Mersey, Birkenhead on Saturday July 14.

Once in the river, tugs towed the 129-meter (423-foot) 10,000 ton hull to Cammell Laird’s wet basin for the next stages of construction. The polar research ship is scheduled to commence operation in 2019.

More than 3,000 shipyard workers, engineers, scientists and maritime industry experts gathered with special guest speakers, including world-renowned broadcaster Sir David Attenborough, to celebrate.

Continue reading “RRS Sir David Attenborough polar research ship launched”

Low speed diesel engines save on claims is the finding of a recent Swedish Club study

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Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club
Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club

In a recent study the Swedish Club has warned that vessels propelled by low speed diesel engines save on claims with a frequency two and a half times higher than slow speed engines with an average claims cost of about $650,000.

Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club. However, the incidence rate varies by vessel class (and engine type).

“Our research shows that bulkers and tankers are the best performers for claims cost,” said senior technical advisor Peter Stalberg. “Most of these vessels have slow speed engines. Conversely passenger vessels/ferries have the highest frequency of main engine claims – 0.066 claims per vessel and year. Often these vessels have multiple medium speed engine installations.”

Stalberg advises that when shipowners have Continue reading “Low speed diesel engines save on claims is the finding of a recent Swedish Club study”

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

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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

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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”

Propulsion system being prepared for Australian icebreaker Nuyina

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An artist's impression of Nuyina, Australia's new icebreaker
An artist’s impression of Nuyina, Australia’s new icebreaker

More than 8,600 tons of steel has now been shaped, welded and assembled into the hull of Australia’s new icebreaker RSV Nuyina.

A few key pieces of the ship’s propulsion system have recently arrived at the Damen Shipyard at Galati, including the propellers, propeller hubs and the sterntubes.

RSV Nuyina, will make her maiden voyage to Antarctica in 2020-21. The ship will be the main lifeline to Australia’s three Antarctic research stations and its sub-Antarctic station on Macquarie Island, and will support Australia’s leadership role in Antarctic and Southern Continue reading “Propulsion system being prepared for Australian icebreaker Nuyina”

Ethylene vapors activate carbon monoxide alarm says safety alert

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A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line
A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line

The USCG has published a safety alert informing marine inspectors that ethylene vapors on LNG carriers can activate Carbon Monoxide alarms. Specifically, during an examination of a LNG carrier whose cargo tanks contained ethylene vapors, PSC Officers (PSCOs) received alarms on their portable four gas meters giving a reading of 60 to 100 parts per-million (PPM) Carbon Monoxide (CO).

A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line. PSCOs initially thought the alarm was related to a combustion event and did not suspect the ethylene vapors were the source, because they did not get a Lower Explosive Limit (LEL) reading on their monitors.

The chemist indicated that the LEL most likely never alarmed because of high winds on deck. He further explained that the molecular weight of Ethylene (28 g/mol) was identical to the molecular weight of CO which accounted for the CO PPM readings. USCG personnel contacted the manufacturer who confirmed that Continue reading “Ethylene vapors activate carbon monoxide alarm says safety alert”

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