Search for dissertations about: "Sjöfartsvetenskap"

Found 5 swedish dissertations containing the word Sjöfartsvetenskap.

2. 1. Heat Transfer Prediction of In Service Welding in a Forced Flow of Fluid

   Author : Per Lindström; Lars-Erik Svensson; Chalmers University of Technology; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sjöfartsvetenskap; Maritime Science;

   Abstract : An algorithm for heat transfer prediction of in-service welding operations in a forcedflow of fluid is presented. The algorithm presented is derived from Rosenthal’s 3D heatflow equation and boundary layer approximations. READ MORE

4. 2. Reducing ships' fuel consumption and emissions by learning from data

   Author : Fredrik Ahlgren; Marcus Thern; Maria E. Mondejar; Cecilia Österman; Ann-Charlotte Larsson; Erik Dahlquist; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shipping; energy efficiency; orc; machine learning; emissions; Sjöfartsvetenskap; Maritime Science;

   Abstract : In the context of reducing both greenhouse gases and hazardous emissions, the shipping sector faces a major challenge as it is currently responsible for 11% of the transport sector’s anthropogenic greenhouse gas emissions. Even as emissions reductions are needed, the demand for the transport sector rises exponentially every year. READ MORE

5. 3. Waste heat recovery in a cruise vessel

   Author : Fredrik Ahlgren; Marcus Thern; Aykut Ölcer; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; whr; orc; ships; waste heat recovery; energy efficiency; cruise ships; Sjöfartsvetenskap; Maritime Science;

   Abstract : In three studies of a cruise ship the author has investigated waste heat recovery (WHR)from exhaust gases using an organic Rankine cycle (ORC), and also mapped the energyand exergy flows within the ship. Data were collected from the ship’s machinerysystem for a total extent of one year, and this data were used for simulations andenergy calculations. READ MORE

6. 4. Creating clarity and managing complexity through co-operation and communication : The case of Swedish icebreaker operations

   Author : Magnus Boström; Jesper Andreasson; Cecilia Österman; Carl Hult; Johan Karltun; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maritime safety; organization; human factors; closed-loop communication; Standard Marine Communication Phrases; misunderstanding; other-initiated repair; Sjöfartsvetenskap; Maritime Science;

   Abstract : Sea transportation is vital for the global economy, and the amount of seaborne trade is expected to increase in the future. In some areas, icebreakers are necessary for maintaining open shipping lanes all-year round and ensuring safe navigation. READ MORE

7. 5. Complexity and Ambivalence in Ship Safety Inspection : The view of Swedish Port state control officers

   Author : Fredrik Hjorth; Carl Hult; Ulf Drugge; Michael Baldauf; Linnéuniversitetet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Inspection; Port state control; Detention; Deprofessionalization; Compliance; Maritime safety; Profession; Bureaucracy; Sjöfartsvetenskap; Maritime Science;

   Abstract : Despite an extensive system of Port state controls (PSC) on ships, inspection loopholes in European control functions have been reported. Furthermore, risk factors associated with fatigue, stress and a poorly developed safety culture on board ships have been identified in earlier research. READ MORE