DNVGL has released a series of publications with updates on the tanker, bulk carrier and gas carrier industry sectors.
Tanker Update 2018
Articles on: market development, alternative fuels and technologies, cybersecurity and TMSA3, tail shaft notation, batteries on small tankers, environmental regulations, eco …
DNV GL Tanker Update 2018
Bulk Carrier Update 2018
Continue reading “DNVGL issues three free to read publications on tankers, bulk and gas carriers”
The West of England P&I Club has said that it regularly receives claims arising from alleged shortages of solid bulk cargoes as a result of discrepancies between draught survey results. Draught surveys by their very nature are not an exact science and the accuracy of the calculated cargo figure may vary typically by between 0.5% and 1.0%. However, there are occasions when considerable differences in the cargo figures derived from the draught surveys have been obtained.
– Bilge water present in the cargo holds, machinery spaces, duct keel, void spaces and the chain lockers.
Continue reading “Key errors leading to inaccuracies in draught surveys”
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”
The International Association of Oil & Gas Producers (IOGP) published an alert regarding an unexpected failure of certain kinds of strain-hardened Type 304 stainless steel bolts. The failure happened at an offshore facility during a pneumatic leak test of gas piping exiting a test separator.
A number of strain-hardened, Type 304 stainless steel bolts, (ASTM A193 B8, Class 2) failed unexpectedly at an offshore facility while a pneumatic leak test of gas piping exiting a test separator was being conducted.
Strain-hardening austenitic stainless steel nuts and bolts to increase their strength may increase their sensitivity to chloride-induced stress corrosion cracking (CISCC) and reduce their safe upper temperature limit. Other factors such as Continue reading “Stainless steel bolts at offshore facility fail due to corrosion cracking”
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”
A defective throw bag rescue line was discovered while Warrington Rowing Club was conducting boat capsize drills for new rowers at Halton Baths in Cheshire, UK. A 15m long polypropylene rescue line in a throw bag, supplied by Riber Products Limited (RIBER), parted while a young person in the water was being pulled to the side of the pool during a simulated rescue. There were no injuries. The rowing club safety advisor subsequently found another throw bag with a defective rescue line that had been purchased from the same supplier. RIBER was informed and the company contacted its customers after identifying a batch of 208 throw bags that could be at risk. A further three defective rescue lines have been identified as a consequence of the customer warning notice posted on Facebook. Considering the potentially serious consequences of a throw bag rescue line failing in a real lifesaving situation, the MAIB is conducting a safety investigation.
On inspection, the defective RIBER throw bag rescue lines identified by Warrington Rowing Club were found to have been made up of sections of polypropylene rope fused together, which broke easily at the joint when put under tension. One line was constructed of two sections of rope fused together, Continue reading “Urgent safety lessons issued by MAIB after the failure of a throw bag rescue line”
LATTICE Technology’s CEO Hoonjin Park confirmed on May 23rd that the company has secured the order for a 15m3 a lattice pressure vessel (LPV® ) LNG fuel tank to be installed onboard a newbuild Port Cleaning Ship to assume service for the Ulsan Port Authority during 2019. The LPV® tank is a Type C-equivalent pressure vessel based on proprietary design by LATTICE Technology. This will be the first commercial contract for a LPV as well as the first LNG-fueled, public service vessel in South Korea.
The Port Cleaning Ship is the first project following the Korean government’s recent assertion that it will actively boost eco-friendly LNG-fuelled shipping by ordering LNGfuelled public service ships and supporting use of LNG-fueled, commercial ships. LATTICE Technology is proud to have been chosen to deliver its unique LPV LNG fuel tank for this project. This LPV is designed for 9 Continue reading “LATTICE Technology secures first commercial sale of its on-board LPV LNG Fuel tank”
In its latest Safety Flashes, IMCA presents a case of a fire due to incorrectly selected oxygen welding gas hose, during a routine cutting job onboard a ship. There were no injuries or ship damage, but investigation later revealed that the hose had been recently replaced with one that did not comply with ISO 14113 specification.
The ship’s welder opened the Oxygen and Acetylene gas bottle valves in order to do a cutting job on deck. These gas bottles were attached to the vessel’s integrated welding gas system. Opening the valve on the Oxygen bottle caused an explosion to a short, high pressure hose delivering oxygen from the bottle to the oxygen gas regulator. The end of the hose caught fire and was quickly extinguished by turning off the oxygen bottle. Nobody was injured and the only damage was to the hose that completely separated.
The hose had been recently replaced, but the replacement hose was a hydraulic oil service hose with oxygen fittings. The replacement hose was not Continue reading “Incorrect oxygen welding gas hose led to fire”
In its latest Safety Digest, the UK MAIB provides learnings about an 8.13m fibreglass fishing vessel that was engaged in picking up its fleets of creels when it began to take on water and subsequently sank. The skipper, who was working alone, managed to deploy the boat’s liferaft and climb into it as the boat was sinking and was later rescued without injuries.
The skipper went out to sea shortly after daybreak to recover his two fleets of creels. The weather was good. As soon as he arrived at the fishing grounds, he hauled in the first fleet of creels and stowed it on the aft end of the deck. He then headed at speed toward the second fleet of creels.
Continue reading “Sinking raises safety issues on bilge alarms”
In the future, intelligent wireless bolts in wind turbines or satellites may be able to let the operator know when something is wrong. This could reduce the risk of human injuries and save cost.
A research team at NTNU in Gjøvik is working to create bolts that send an alert when something is not as it should be or when maintenance is needed. Each bolt must be able to contact a control center, which will receive messages from all intelligent bolts of this type in all installations around the world.
The team working on these wireless bolts includes Professor Michael Cheffena, two fellows and the manufacturer Dokka Fasteners. The vision of the research team is to develop wireless sensors to be installed inside the bolts. If the sensors detect that something is Continue reading “Are ‘Smart Bolts’ the thing of the future?”
A robot designed to hook onto, and scale up and down, large mooring chains, both at sub-sea level and in the air – with a non-destructive testing (NDT), ultrasonic imaging system on board that scans for critical defects – has recently undergone successful field trials.
The ground-breaking, new climbing robot, named RIMCAW (Robotic Inspection of Mooring Chains in Air and Water), is the result of a year-long, fast-track project that secured funding from Innovate UK, the Government agency behind finding and driving the innovations that will grow the UK economy. It is being delivered by collaborative partners Computerised Information Technology Ltd, Innovative Technology and Science Ltd, London South Bank University and TWI Ltd.
The inspection of large mooring chains, such as those being increasingly employed in Continue reading “New innovation for inspecting mooring chains above and below water successfully trialled”
Life Cell, which stores essential safety gear together in a buoyant, high-visibility floating case for quick and easy access in emergencies, has received a 2018 Top Product Award from Boating Industry magazine.
Designed by a survivor of a rapid sinking off the coast of Sydney, Australia, Life Cell is redefining how safety equipment is stored on boats and creating a new category of safety equipment in an attempt to save lives. It is like combining a life ring and a ditch kit in one device, two items that have undergone little innovation in recent history.
“Life Cell has had significant success in Continue reading “Life Cell wins top boating magazine award”
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