Sökning: "alternative fuel vehicles"

Visar resultat 6 - 10 av 52 avhandlingar innehållade orden alternative fuel vehicles.

1. 6. On the Performance of Long-Range Autonomous Underwater Vehicles : Enhancing the Endurance of AUVs

   Författare :Clemens Deutsch; Jakob Kuttenkeuler; Roger Berg; Martin Ludvigsen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous underwater vehicles; Underwater gliders; Propulsion; Fuel cell; Energy management strategies; Autonom undervattensfarkost; Undervattensglidning; Propulsion; Bränslecell; Energy Management Strategies; Vehicle and Maritime Engineering; Farkostteknik;

   Sammanfattning : Autonomous underwater vehicles (AUVs) are robotic platforms that are commonly used to gather environmental data, provide bathymetric images, and perform manipulation tasks. These robots are used not only for scientific, but also for industrial and military purposes. LÄS MER

3. 7. A Methodology for the Design of Cost Effective Hybrid Vehicles

   Författare :Jonas Hellgren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fuzzy logic; system engineering; model car; optimal design; evolutionary algorithms; hybrid electric vehicle; alternative powertrain; simulation; modeling; genetic algorithms; fuel cell vehicle; hybrid vehicle;

   Sammanfattning : This thesis deals with system design of cost effective hybrid and fuel cell vehicles. Today (2004) the major disadvantages of these vehicles are increased complexity and component costs. However, the decrease in cost of electrical components and the environmental concern make these vehicles more and more competitive. LÄS MER

4. 8. A methodology for the design of cost effective hybrid vehicles

   Författare :Jonas Hellgren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite state machine; alternative driveline; evolutionary algorithms; genetic algorithms; hybrid vehicle; optimal design; simulation; hybrid electric vehicle; moddeling; fuel cell vehicle;

   Sammanfattning : .... LÄS MER

5. 9. Electrode Degradation in Polymer Electrolyte Fuel Cells

   Författare :Linnéa Strandberg; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalyst degradation; Platinum stability; Fuel cells;

   Sammanfattning : To mitigate the climate crisis, and reduce carbon emissions from e.g. the transport and energy sectors, hydrogen has been proposed to be used as an environmentally friendly alternative energy carrier. LÄS MER

7. 10. ELM: Environmental Assessment of Fuel Supply Systems for Vehicle Fleets

   Författare :Magnus Blinge; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; exergy; biomass; alternative motor fuel; wnvironment; transportation; renewable; energy; Life Cycle Assessment; logistics; emission;

   Sammanfattning : This thesis is based on the idea of applying a logistics approach to fuel supply systems. The complete supply chain from energy raw material to end use in the vehicle is analysed while keeping track of energy conversion efficiency, exergy consumption and emissions to air. LÄS MER