Sökning: "life cycle impact assessment"

Visar resultat 16 - 20 av 187 avhandlingar innehållade orden life cycle impact assessment.

1. 16. Life Cycle Assessment of Paper Based Printed Circuits

   Författare :Qiansu Wan; Li-Rong Zheng; Changqing Liu; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Printed Electronics; Environment; PCB; Life Cycle assessment; Emissions; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Printed circuit boards have been massively manufactured and wildly used in all kinds of electronic devices during people’s daily life for more than thirty years since the last century. As a highly integrated device mainly consists of silicon base, an etched copper layer and other soldered components, massive production of printed circuit boards are considered to be environmentally unfriendly due to the wet chemical manufacturing mode and lack of recycling ability. LÄS MER

3. 17. Advancing prospective life cycle assessment -Experiences from guiding carbon fibre composite development

   Författare :Frida Hermansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate impact; Life cycle assessment; prospective; carbon fibre composites; energy use;

   Sammanfattning : Life cycle assessment is a powerful tool for quantifying the environmental impacts of goods and services. While most easily done for well-defined and known product systems, there is also a need for a prospective (that is, a future-orientated) approach to assessing developing technologies. LÄS MER

4. 18. Simplified Life Cycle Assessment Approaches and Potential Impact Shifts

   Författare :Katja Tasala Gradin; Sofia Ritzén; Anna Hedlund-Åström; Matthias Finkbeiner; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LCA simplification approach; impact shift; reduction measures; road transport; streamlining; screening; Machine Design; Maskinkonstruktion;

   Sammanfattning : Road transport contributes to approximately one quarter of all EU greenhouse gas emissions and is the leading cause of air pollution in cities. There are significant measures aimed at the reduction of use phase environmental impacts; in the EU, these strategies focus on the decarbonisation of road transport, such as through the prioritization of low- and zero-emission vehicles. LÄS MER

5. 19. Exploring the Effects of ICT on Environmental Sustainability: From Life Cycle Assessment to Complex Systems Modeling

   Författare :Mohammad Ahmadi Achachlouei; Åsa Moberg; Göran Finnveden; Lorenz M. Hilty; Chris Preist; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Information and communication technology ICT ; sustainability assessment; electronic media; tablet; print media; magazine; Internet; energy; environmental impact; life cycle assessment LCA ; System Dynamics; agent-based modeling; differential equations; simulation modeling; complex and dynamic systems modeling; Informations- och kommunikationsteknik IKT ; hållbarhetsbedömning; elektroniska media; surfplatta; tryckta media; tidskrift; Internet; energi; miljöpåverkan; simulering; differentialekvationer; modellering av komplexa och dynamiska system; System Dynamics; livscykelanalys LCA ; agentbaserad modellering; Planering och beslutsanalys; Planning and Decision Analysis; Informations- och kommunikationsteknik; Information and Communication Technology; Industriell ekologi; Industrial Ecology; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Sammanfattning : The production and consumption of information and communication technology (ICT) products and services continue to grow worldwide. This trend is accompanied by a corresponding increase in electricity use by ICT, as well as direct environmental impacts of the technology. Yet a more complicated picture of ICT’s effects is emerging. LÄS MER

7. 20. Towards Sustainable Construction: Life Cycle Assessment of Railway Bridges

   Författare :Guangli Du; Raid Karoumi; Håkan Sundquist; Helge Brattebo; KTH; []
   Nyckelord :Life cycle assessment; LCA; Environment; Railway Bridge; Sustainability; Järnvägsgruppen - Infrastruktur; Järnvägsgruppen - Infrastruktur;

   Sammanfattning : Since last few decades, the increased pressure from the environmental issues of natural resource depletion, global warming and air pollution have posed a great challenge worldwide. Among all the industrial fields, bridge infrastructures and their belonged construction sector contribute to a wide range of energy and raw materials consumptions, which is responsible for the most significant pollutions. LÄS MER