Shipping activity has increased considerably over the last century and currently represents a significant contribution to global emissions of pollutants greenhouse gases. Despite this, information about historical development fuel consumption is generally limited, with little data published pre‐1950 large deviations reported for estimates covering 3 decades. To better understand in ship uncertainties associated estimates, we present fuel‐based CO 2 SO emission inventories from 1925 up 2002...

An empirical study in the ship-building sector has been undertaken to understand problems associated with coordination of engineer-to-order (ETO) supply chains and reveal insights into opportunities for improvements based on application soft systems methodology. A number alternatives improve chain have proposed comparison between a model actual practice. These were summarised seven general principles that help define role individual companies coordinating ETO chains, highlighting company's...

The ship design and construction industry serves a considerable range of market segments, with different levels required customization, demand volumes, other product variations. In order to effectively respond various requirements, strategies related work processes need be differentiated. An important strategic concept make distinctions among is the customer decoupling point, that is, point in value chain where linked specific order. This article aims analyse compare for customized,...

Abstract This paper outlines a generic method for quantifying changeability level, to support better decision making in the early stages of design engineering systems. Changeability represents ability system change form, function, or operation, and is collective term characteristics such as flexibility, adaptability, agility. Quantification level must not be confused with valuation changeability. The essentially under control designer. Two aspects are discussed, first being how structure...

Engineering changes (ECs) are unavoidable in the engineer-to-order (ETO) environment. ECs improve products and bring additional profit to ETO companies if effectively negotiated implemented. Despite abundant relevant literature on EC management, still report cost overruns owing ECs. Here, a multiple case study conducted Norwegian shipbuilding group was used investigate factors affecting implementation performance complex environments. The were examined by cross-case analysis of six occurring...

Ship design is a creative process serving defined objective. This normally an iterative with the being corrected and adjusted many times until it satisfies this taking place in broader business context consisting of stakeholders providing necessary resources information to enable realization vessel newbuilding project. Activities performed by different actors, such as customers, suppliers brokers, are organized integrated into ship firm. paper addresses discusses ways organizing...

For the past several decades, Norwegian shipyards have focused on innovative, customized, and technologically advanced ships, often serving offshore oil gas industry. Usually, a significant part of ship production is off shored, especially steel-related tasks. That is, such tasks are carried out in country with lower factor costs. The yards focus more outfitting tasks, as installation commissioning machinery deck equipment, electrical systems, accommodation. Nevertheless, amount work...

The objective of this paper is to investigate the plausibility applying Epoch-Era Analysis (EEA) as a systems engineering technique evaluate whether an offshore subsea construction vessel (OSCV) can deliver sustained value stakeholders over time in complex, uncertain and changing technological, operational commercial context. Additionally, article discusses how interpret results such analysis. As basis for EEA, concise analysis current OSCV market inherent development trends technology...

In this paper, we address difficulties in ill-structured ship design problems. We focus on issues related to evaluation of commercial system performance, involving perceptions value, risk, and time, better understand trade-offs at the early stages. Further, paper presents a two-stakeholder offshore problem. The Responsive Systems Comparison (RSC) method is applied case untangle complexity, how one can structure problem handling future contextual uncertainty ensure value robustness. Focus...

The build strategy of a ship specifies what is to be produced how, when, where and with resources. Although it has been emphasised play an important role in determining shipbuilding time cost, scientific research on limited. In this study, we focus three interrelated strategic factors particular importance European shipbuilding: hull production offshoring, pre-erection outfitting the overlap between engineering production. study investigates how each these relates physical total delivery...

Abstract In this paper, model‐based systems engineering (MBSE) and discrete event simulation (DES) are combined to assess the performance of an offshore production system at early stage. Various tools applied industrial case concerning retrieval deep‐sea minerals, a engine is developed calculate annual output. A mean 1 Million tonnes ore per year estimated for operation in Norwegian Sea using Monte Carlo simulation. Depending on limiting design wave height marine operations, output ranges...

With the need for low-emission maritime transport solutions, ship owners and designers face uncertainty unpredictability when it comes to selection of fuel today in future. The effects this can be mitigated a certain extent by fuel-flexible ships. In light flexibility, both agility affordability, i.e. time cost changes, are important parameters considered early design phase. We apply discuss these their consequences existing flexible solutions new alternatives.

Years of volatile shipping market dynamics have intensified the need for more effective handling uncertainty in conceptual and basic ship design processes. More recently, necessary climate remedial efforts revealed complexity associated with facts-based selection proper “green” technologies solutions, control their resulting extra costs operational commercial consequences. Naval architects marine engineers firms or shipyard affiliations, than ever, seen expertise, knowledge, work practices,...

This article studies the prospects for deep seabed mining as a future viable maritime industry, and discuss commercial, operational, technical viability of mining. By use business development approach originating from we analyse opportunities virtual project, identify aspects stakeholder performance expectations, contextualised by competitive positioning identification related project risks. We strategies pit-falls when venture within wider metal production value chain, case example in...

At the Norwegian University for Science and Technology (NTNU) in Trondheim we have a long tradition education Master of candidates naval architecture marine technology both global maritime industry. Currently graduate approximately 120 MSc each year. Until now, they typically been employed by three major export industries Norway, being shipping shipbuilding, offshore oil gas, fisheries aquaculture, though increasingly renewable energy has become employer. In this paper will report on how...

_ In this paper, vessels from the offshore oil and gas industry are explored in conceptual design of value-robust deep-sea mining vessel solutions. The responsive systems comparison method is applied a case addressing two hypothetical stakeholders: company operator. Their value propositions outlined pave ground for important attributes that consolidate into cost–benefit trade-offs various solutions technology choices discussed different future scenarios. results indicate complexity drives...