Sökning: "Erik Dahlquist"

Visar resultat 11 - 15 av 47 avhandlingar innehållade orden Erik Dahlquist.

  1. 11. Small-Scale Decentralized Energy Systems : optimization and performance analysis

    Författare :Sara Ghaem Sigarchian; Viktoria Martin; Anders Malmquist; Erik Dahlquist; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Small-scale polygeneration energy systems; techno-economic optimization; renewable energy; operating strategy; particle swarm optimization; optimization algorithm; decentralized energy system;

    Sammanfattning : Small-scale polygeneration energy systems, providing multiple energy services, such as heating, electricity, cooling, and clean water, using multiple energy sources (renewable and non-renewable) are considered an important component in the energy transition movement. Exploiting locally available energy sources and providing energy services close to the end users have potential environmental, economic, and societal benefits. LÄS MER

  3. 12. Energy Optimal Operation of Electric Trains : Development of a Driver Advisory System

    Författare :Nima Ghaviha; Erik Dahlquist; Markus Bohlin; Fredrik Wallin; Evert Andersson; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : The electric traction system used in trains is the most energy efficient traction system in the transportation sector. Moreover, it has the least NOx and CO2 emissions in comparison to other transportation systems (e.g. busses, passenger cars, airplanes, etc. LÄS MER

  4. 13. Increasing Energy Efficiency in Electric Trains Operation : Driver Advisory Systems and Energy Storage

    Författare :Nima Ghaviha; Erik Dahlquist; Markus Bohlin; Fredrik Wallin; Rob M.P. Goverde; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Driver Advisory System; Catenary-free Operation; Electric Train; Electric Multiple Unit; Battery; Energy Efficiency; Energy Storage; Speed Profile Optimization; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Electric traction is the most efficient traction system in the railway transportation. However, due to the expensive infrastructure and high power demand from the grid, the share of electric trains in the railway transportation is still lower than other trains. LÄS MER

  5. 14. Corporate Greening : Product and Production Perspectives

    Författare :Bozena Guziana; Erik Dahlquist; Eva Thorin; Birgitta Schwartz; Peter Dobers; Terrence Fel; Van Miller; Mälardalens högskola; []
    Nyckelord :Greening; ‘Green’ business; ‘Green-green’ business; Environmental leaders; Environmental profile; Environmental technology; Product and production; Communicating; CSR; Ecopreneurs; Företags miljöarbete; ’Gröna’ företag; ’Grön-gröna’ företag; Miljöledande företag och organisationer; Miljöteknik; Produkt och tillverkning; Kommunikation; CSR; Ecoprenörer; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : This thesis describes corporate greening in general, and specifically the environmental technology (ET) sector as a green sector. The thesis has also particular focus on production and products related aspects and the influence of the environmental profile of the ET sector on the environmental engagement of companies in the sector. LÄS MER

  7. 15. Is the Swedish Environmental Goods and Services Industry Green? : Product and production perspectives

    Författare :Bozena Guziana; Erik Dahlquist; Eva Thorin; Cecilia Mark-Herbert; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology sector; Environmental goods and services; Clean technology; ‘Green’ business; ‘Green-green’ business; Production and product related environmental profile; miljöteknik sektor; miljöprodukter och miljötjänster; cleantech; ’gröna’ företag ’green’ business ; ’grön-gröna’ företag ’green-green’ business ; produktions- och produktrelaterad miljöprofil; Environmental engineering; Miljöteknik; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : In most business sectors environmental programs focus on direct, production-related environmental impacts. The design and development of products with reduced environmental impact is considered more difficult. The opposite applies in the environmental technology sector. LÄS MER