Search for dissertations about: "gas transport"

Showing result 1 - 5 of 483 swedish dissertations containing the words gas transport.

2. 1. Power to gas : Bridging renewable electricity to the transport sector

   Author : Farzad Mohseni; Per Alvfors; Mats Westermark; Lars Pettersson; Maria Grahn; Björn Frostell; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport; renewable electricity; synthetic fuels; energy; power to gas;

   Abstract : Globally, transport accounts for a significant part of the total energy utilization and is heavily dominated by fossil fuels. The main challenge is how the greenhouse gas emissions in road transport can be addressed. Moreover, the use of fossil fuels in road transport makes most countries or regions dependent on those with oil and/or gas assets. READ MORE

4. 2. The Transition Towards a Fossil Free Freight Transport Sector – Policy Evaluations and Effects of Proposed Policy Instruments

   Author : Lina Trosvik; Johan Woxenius; Statens väg- och transportforskningsinstitut; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Maritime transport; Policy evaluation; Policy instruments; Scenario analyses; Freight transport; Evaluation criteria; Greenhouse gas emissions;

   Abstract : The overall aim of this thesis is to improve the knowledge about how policy instruments can contribute to effective and efficient reductions of greenhouse gas emissions in the freight and maritime transport sectors. Paper I addresses this aim by analysing how policy evaluations contribute with information about whether policy instruments in the freight transport sector have been successful in achieving their targets and how to improve or correct already implemented ones. READ MORE

5. 3. Transport in Oxides Studied by Gas Phase Analysis

   Author : Qian Dong; Gunnar Hultquist; W.J. Quadakkers; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Phase Analysis; metal; oxide; platinum; vitreous silica; yttria stabilized zirconia; diatomic gas; oxidation; dissociation; permeation; uptake release.; Chemical engineering; Kemiteknik;

   Abstract : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. READ MORE

6. 4. Modelling of reactive gas transport

   Author : Erik Sundelöf; KTH; []
   Keywords : ;

   Abstract : A rather general microscopic model for reactive gastransport in porous media is developed and applied to twodifferent processes in powder metal technology: carburization,and reduction of surface oxides.The carburization model is developed from the kinetic modelproposed by Grabke and applied to a 2-D porous geometryobtained from images. READ MORE

7. 5. Sociotechnical system studies of the reduction of greenhouse gas emissions from energy and transport systems

   Author : Linda Olsson; Mats Söderström; Annelie Carlson; Magdalena Fallde; Elisabeth Wetterlund; Kes McCormick; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy systems; transport systems; greenhouse gas emissions; energy policy; transport policy; sociotechnical systems analysis; wicked problem; Energisystem; transportsystem; växthusgasutsläpp; energipolicy; transportpolicy; socioteknisk systemanalys; wicked problem;

   Abstract : It is agreed that greenhouse gas (GHG) emissions from energy and transport systems must be reduced. Technical means exist to reduce GHG emissions from these sources. However, these emission-reduction measures are not implemented to a high enough degree. READ MORE