engleski

Modular concept in the design of environmentally friendly passenger vessels: Techno-economic aspects

This work discusses techno-economic aspects of implementation of modular concept in the design framework of small passenger ships intended to satisfy rigorous environmental criteria together with ordinary design requirements. As indicated, the procedure is based on the modular concept enabling the change of the ship production paradigm from the classical all-in-one approach to a parallel manufacture of different components done by highly specialized producers and a final assembly done by the local shipyard. This approach has the ambition of achieving a design of a modular passenger vessel concept which goes beyond the simple payload criteria. It is structured in a way that enables the development of a set of solutions which cover a quite wide range of applications in short-sea shipping. The target vessel is considered as made of independent modules which can be combined together to achieve different characteristics in terms of ship dimensions, carrying capacity, operability, comfort, fuel consumption and energy efficiency. There are several advantages in such a wide set of combinations. The first immediate consequence is that, due to the flexible and easy adaptation of the concept to different requirements of passenger ships, each component can be produced in larger lots, justifying an improved design and making it cost effective. Also, the modularity allows a parallel production of the modules. This can change the approach to the production from local, small size, shipyards, which build the vessel in a sequential way, to highly specialized and large business size industries that manufacture the modules in large numbers and deliver them to for the final assembly. This investigation is a part of long- term project, where at first an analysis of the market needs and of the corresponding ship requirements is being performed for different navigation areas, which is actually a main subject of this presentation. Then, the preliminary concepts based on those outcomes are being proposed, while the final concepts will be developed taking into account all important aspects of ship design: resistance and propulsion, seakeeping, structural aspects, ship habitability, simplified manufacturing processes as well as environmentally friendly energy solutions. Through this project several optimized modular passenger vessels should be proposed depending on the selected design criteria sets. It is expected that the investigation will result in a number of concepts fitting to the market needs with reduced production costs, higher level of comfort for crew and passengers, reduced fuel consumption as well as lower environmental impact.

Modular concept ; Ship production ; Economic aspects ; Hydrodynamic performance ; Ship habitability ; Energy efficiency ; Environmental protection

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