2140 M~3 SEA - DANUBE RIVER NAVIGATION LPG CARRIER

摘要

Wide use of the liquefied gases as alternative fuel for the European automobiles has caused significant interest to the special vessels, allowing to deliver the given dangerous cargo (propane-butane) from supplier (Volga and Dnepr ports) to the consumer (Danube ports) with the minimal losses of time, resources and cargo at reloading operations. Marine Engineering Bureau had been given the task by the Bulgarian company "Bulmarket" to search for suitable riversea navigation dry-cargo ship with about 1000 t carrying capacity and subsequent conversion to about 2000 m~3 capacity LPG carrier for work on Danube port Ruse. Decision on re-equipment of an existing dry-cargo vessel has been connected to financial limits and necessity to have the required vessel in the shortest term. The choice of high-pressure tanks is caused by an available coastal infrastructure and vessel's means. The most effective for chosen type LPG and capacity (Danube limits for dangerous goods) are horizontal cylindrical tanks in hold and on a deck, that has allowed the number of required tanks to be reduced to six (4 hold and 2 deck). A feature of the vessel's structural design was the necessity of maintenance of local strength and survivability of side structures in a case of collisions, with the purpose to prevent damage of cargo tanks and cargo pipelines. Experience of the mixed river-sea navigation gas carrier building allows real perspectives providing safe delivery of alternative automobile fuel with the minimal expense for consumers in East and Western Europe on system Danube-Main-Rhine directly from manufacturers.