Shipping

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

Posted on by News Hound
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”

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

Posted on by News Hound
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”

A study by Maersk and ABS finds hazards affecting the safety on containerships

Posted on by News Hound
A docked containership - Photo credit: Maersk
A docked containership – Photo credit: Maersk

Hazards associated with dangerous goods stowage on containerships were identified on a range of boxship designs, a study conducted by Maersk Line and ABS has revealed.

The Danish shipping major giant selected ABS to lead a comprehensive Hazard Identification (HAZID) study in the aftermath of the Maersk Honam fire on March 6, 2018.

The workshop, which was launched in an effort to identify and evaluate potential hazards from dangerous cargoes stowage, identified hazards on a range of containership designs, many which are not fully addressed by the International Maritime Dangerous Goods (IMDG) Code.

Continue reading “A study by Maersk and ABS finds hazards affecting the safety on containerships”

A culture of poor maintenance practices led to Caribbean Fantasy fire says report

Posted on by News Hound
The fire could not be contained, so the master ordered the ship to be abandoned.
The fire could not be contained, so the master ordered the ship to be abandoned.

A poor safety culture and the ineffective implementation of a safety management system were identified as the most likely causes of the 2016 fire aboard the RoRo vessel Caribbean Fantasy.

The vessel’s main engine room was hit by fire in the morning hours of 17 August 2016, when fuel spraying from a leaking flange came in contact with a hot surface on the port main propulsion engine, the National Transportation Safety Board (NTSB) said in a report.

The fire could not be contained, so the master ordered the ship to be abandoned. At the time of the incident, the Baja Ferries-operated vessel was 2 miles northwest of San Juan, Puerto Rico.

Continue reading “A culture of poor maintenance practices led to Caribbean Fantasy fire says report”

BSU report shows that MSC Katrina fire was caused by self-heating

Posted on by News Hound
The MSC Katerina
The MSC Katerina

The German Federal Bureau of Maritime Casualty Investigation has released its reports about two non-connected fires on container ships. The MSC Katrina was in the Elbe estuary when the fire was detected on 20 November 2015. The second ship, the Ludwigshafen Express was in the Red Sea when fire was noticed during an inspection in February 2016.

The first incident

The MSC Katrina was located in the Elbe estuary when its smoke detection system discovered fire. As a result, the Central Command for Maritime Emergencies had the ability to deploy specially trained firefighters.

Continue reading “BSU report shows that MSC Katrina fire was caused by self-heating”

DNVGL issues three free to read publications on tankers, bulk and gas carriers

Posted on by News Hound
DNV GL Flags
DNV GL Flags

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”

Key errors leading to inaccuracies in draught surveys

Posted on by News Hound
Side of a solid bulk cargo
Side of a solid bulk cargo

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.

The commonly forgotten weights are:

– 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”

Ethylene vapors activate carbon monoxide alarm says safety alert

Posted on by News Hound
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”

LATTICE Technology secures first commercial sale of its on-board LPV LNG Fuel tank

Posted on by News Hound
LATTICE technology’s proprietary LPV containment system for LNG has been approved by seven international classification societies following the successful test of four prototype tanks.
LATTICE technology’s proprietary LPV containment system for LNG has been approved by seven international classification societies following the successful test of four prototype tanks.

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”

Wet damage the most costly claim says The Swedish Club

Posted on by News Hound
Ship on the sea - Image Courtesy: Empros Lines
Ship on the sea – Image Courtesy: Empros Lines

The Swedish Club has published a report warning bulk carrier owners to pay extra attention to the basics. The Club has concluded that for bulk carrier operators, wet damage is the most costly claim type and the second most common claim that they experience.

The report is entitled Wet Damage on Bulk Carriers and has been prepared in cooperation with DNV GL, and MacGregor. It identifies heavy weather and leaking hatch covers as the most common and the most costly type of claim and the average cost for a wet damage cargo claim being almost $110,000.

Whilst weather routeing minimises the effects of Continue reading “Wet damage the most costly claim says The Swedish Club”

London P&I Club reveals key causes of container loss claims

Posted on by News Hound
Containers on a ship - Photo credit: London P&I Club
Containers on a ship – Photo credit: London P&I Club

A recent run of container loss claims by the London P&I Club has highlighted some of the common contributory factors that emerge as part of the investigation process. The Club noted that the subject of misdeclared container weights continues to be a problem. But with this particular run of claims it was the attending surveyor’s observations about cargo securing equipment that caught the eye.

In these container loss claims, it became clear that several manual twist locks were not correctly locked at the time of the incident. The causes for this were considered to be two-fold – some twist locks were damaged (specifically with locking levers either bent or missing), or the units in service were a mixture of right and left-hand locking units, leading to confusion over the observed status of the twist lock.

Upon investigation, a number of container corner castings and container foundations showed no signs of having a locked twist lock forcibly removed during the collapse, the natural conclusion being Continue reading “London P&I Club reveals key causes of container loss claims”

IMO adopts GHG emissions strategy for shipping

Posted on by News Hound
Nations met at the United Nations International Maritime Organization (IMO) in London recently to talk GHG emissions
Nations met at the United Nations International Maritime Organization (IMO) in London recently to talk GHG emissions

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 GHG emissions strategy for shipping”

Instagram Posts from the IIMS @iimsmarine

Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.

Strictly Necessary Cookies

Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.

Show details
Performance & Marketing Cookies

This website uses Google Analytics to collect anonymous information such as the number of visitors to the site, and the most popular pages. This also helps us optimise our marketing campaigns. User data sent to Google Analytics may be used for ad personalization and measurement of our ad campaigns. Keeping this cookie enabled helps us to improve our website.

Show details
Powered by  GDPR Cookie Compliance