TIG Welding (GTAW) Process
Gas tungsten arc welding (GTAW) is a process in which the joining of metals is produced by heating therewith an arc between a tungsten (non-consumable) electrode and the work with a TIG welding machine.
Indian Ocean Memorandum Of Understanding On The PSC
The Indian Ocean Memorandum of Understanding (IOMOU) on port State control (PSC) in the Indian Ocean region was finalized on the basis of the first preparatory meeting held in India in October 1997 and the second meeting in June 1998 in South Africa. The port State control system aims to verify whether foreign flagged ships calling at a port of a State comply with applicable International Maritime Conventions.
A brief description of NOX emission requirement
In this article, a brief explanation on the limiting requirements for NOx emissions from marine diesel engines is given and the three emission tiers are briefly reviewed.
Emergency towing arrangements
The emergency towing arrangements should be so designed as to facilitate salvage and emergency towing operations on tankers primarily to reduce the risk of pollution. The arrangements should at all times be capable of rapid deployment in the absence of main power on the ship to be towed and easy connection to the towing vessel.
What's new with MEPC 79
The seventy-ninth session of the Marine Environment Protection Committee was held from 12 to 16 December 2022. A brief report of adopted outputs has been written for the Marine Topics readers.
Pitting Corrosion in ships
Pitting corrosion is a localized form of corrosion by which cavities or holes are produced in the material. Pitting is considered to be more dangerous than uniform corrosion damage because it is more difficult to detect, predict and design against.
In this article, we discuss general explanations about pitting corrosion in ships.
What are the Effects of Underwater Noise Pollution?
In the ocean, many marine mammals and other species rely on their hearing for survival. Sound is critical for communication, navigation, locating prey, avoiding predators and finding mates.
Ocean noise from ships and other human activity is increasingly impacting our marine life. In this article, the effects of underwater noise pollution have been considered and some solutions will be proposed.
Ammonia as a marine fuel
Ammonia has attracted wide interest as a source of zero emission fuel for shipping. Ammonia has the key benefit of being easier to store than hydrogen, i.e. nearly identical to propane (LPG) at low pressure under ambient conditions. Hence, the cost of storage per energy unit is significantly cheaper than either hydrogen, electricity in batteries or LNG.
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Emission regulations and the future of ships
With the entry into force of IMO’s Carbon Intensity Indicator, future of a third of the world’s ships hangs in the air
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