EXPERT SYSTEM FOR SHIP RECYCLING

Ship recycling has been considered as a low technology industry. It has been established that there are more than a dozen stake holders in ship recycling having their own interests and roles. Apart from this, most of the ship recycling activities are carried out with poor infrastructure support and without adhering to proper safety and environmental standards. A Knowledge-based support is the need of the hour for improving the status of ship recycling industry. Knowledgebase support in the form of a computer based expert system encompassing entire ship recycling activities is considered as a very useful step in this direction. This paper presents the need for a user friendly expert system for ship recycling process. Two important functions of the expert system have been presented, one for the Administrators, the stake holders at the helm of the ship recycling affairs and second one for the Users, who execute the actual dismantling have been presented.

Estimation of the volume of metal waste generated during ship recycling

In the case of a long-term stagnation of the ship, before being transferred for disposal, its structures are exposed to the environment and, as a result, are destroyed. Ultimately, this leads to the fact that part of the metal becomes unsuitable for further use, even as a secondary raw material, and will be sent to waste, which must be buried in a certain way, leading the treatment in accordance with current standards. The presence of waste will reduce the mass of metal that is sent for processing, and, consequently, brings profit to the ship recycling yards. The article considers an approach that allows us to estimate the volume of waste and the reduction in the mass of "useful" metal, both in general terms and numerically for a specific ship project. Equations are obtained that allow determining the mass of spent metal, both in operation and in long-term stagnation of the ship.

A Gap Analysis of Ship-Recycling Practices in Indonesia

Ship recycling is gaining attention in Indonesia due to the increase in end-of-life ships and uneconomical nationally flagged ships, and is considered a prospective source of economic development and employment opportunity, and yet conceivably poses a threat to the health and safety of workers and the environment. There are international and national regulations that govern ship-recycling activities to ensure that the hazardous impacts of the industry are minimized. We investigated the disparity between current ship-breaking practices in Indonesia and the requirements of related international and national regulations, with the findings intended for use as a stepping stone to proposing a strategy to establish a green and sustainable ship-recycling industry. A benchmark study of the world’s leading ship-recycling countries was conducted, and a gap analysis was performed by comparing existing international and national regulations with current ship-breaking practices in Indonesia. We identified two types of ship-breaking practices in Indonesia: Conventional environmentally unfriendly ship-breaking method, conducted by most Indonesian ship-breaking yards, and a rather modern, more environmentally friendly method, conducted by ship-repair yards. However, neither of the practices met the requirements of the regulations, and improvements are therefore needed to make the ship-recycling industry more green and sustainable, and to gain international recognition.