Sökning: "Mekanisk och termisk energiteknik"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Mekanisk och termisk energiteknik.

  1. 1. Comparative study of residue pellets from cane sugar and palm-oil industries with commercial wood pellets, applied in downdraft gasification

    Författare :Catharina Erlich; Torsten Fransson; Björn Zethraeus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy engineering; Mechanical and thermal engineering; Mekanisk och termisk energiteknik;

    Sammanfattning : While biomass utilization for energy conversion in the industrialized nations is being largely developed, highly efficient and environmentally friendly, many tropical countries still use biomass at low efficiencies and high emission levels. The main reasons for these gaps are both political and technological: the energy markets are different, the Gross National Product (GDP) differs widely, and the feedstock differs in form and conversion behaviour. LÄS MER

  3. 2. COMHEX - a concept for joule cycle, : theoretical analysis and design study

    Författare :Jan-Erik Nowacki; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Joule cycle; Brayton cycle; natural refrigerant; heat pump; refrigeration; environment; centrifugal compression; rotating heat exchanger; COMHEX; Mechanical and thermal engineering; Mekanisk och termisk energiteknik;

    Sammanfattning : .... LÄS MER

  4. 3. Assessing the sustainability of bioethanol production in Nepal

    Författare :Dilip Khatiwada; Semida Silveira; Andrew Martin; Björn Karlsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Bioethanol; sustainability; life cycle assessment; net energy values; greenhouse gas GHG balances; sustainable development; least developed countries LDCs ; Nepal; Mechanical and thermal engineering; Mekanisk och termisk energiteknik; Climatology; Klimatologi;

    Sammanfattning : Access to modern energy services derived from renewable sources is a prerequisite, not only for economic growth, rural development and sustainable development, but also for energy security and climate change mitigation. The least developed countries (LDCs) primarily use traditional biomass and have little access to commercial energy sources. LÄS MER

  5. 4. Combined Electricity Production and Thermally Driven Cooling from Municipal Solid Waste

    Författare :Seksan Udomsri; Andrew R. Martin; Torsten Fransson; Erik Dahlquist; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; municipal solid waste; incineration; hybrid cycle; power production; thermally driven cooling; absorption chillers; decentralized thermally driven cooling; district heating; Mechanical and thermal engineering; Mekanisk och termisk energiteknik; SRA - Energy; SRA - Energi;

    Sammanfattning : Increasingly intensive efforts are being made to enhance energy systems via augmented introduction of renewable energy along with improved energy efficiency. Resource constraints and sustained high fossil fuel prices have created a new phenomenon in the world market. LÄS MER

  7. 5. Experimental Investigation of Refrigerant Charge Minimisation of a Small Capacity Heat Pump

    Författare :W. Primal D. Fernando; Björn Palm; Alberto Gavallini; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat pump; propane; low-charge; Wilson plot method; minichannels; aluminium heat exhangers; single.phase flow; Mechanical and thermal engineering; Mekanisk och termisk energiteknik;

    Sammanfattning : Enormous quantities of heat are available in air, soil, water, exhaust air from buildings, and in waste water of any kind. However these heat sources are use-less for heating purposes since their temperatures are lower than the tempera-ture required for heating. LÄS MER