Sökning: "thermal energy conversion"

Visar resultat 21 - 25 av 58 uppsatser innehållade orden thermal energy conversion.

  1. 21. Characterization of biomass pyrolysis and gasification using Raman Spectroscopy

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Henrik Johansson; [2018]
    Nyckelord :Raman; Raman Spectroscopy; Raman scattering; biomass; biofuel; thermal conversion; pyrolysis; gasification; laser diagnostics; laser-induced fluorescence; LIF; energy; wood pellets; ammonia; aldehydes; ketones; formaldehyde; acetaldehyde; acetone; combustion physics; Physics and Astronomy;

    Sammanfattning : This thesis examines the emissions formed during pyrolysis and gasification of lignocellulosic biomass in pellet form, using vibrational Raman spectroscopy. Seven different samples are studied during the pyrolysis process and six of these are also studied during gasification. LÄS MER

  3. 22. Granskning av avancerade pyrolysprocesser med lignocellulosa som råvara – tekniska lösningar och marknadsförutsättningar

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Elisabet Sundberg; [2017]
    Nyckelord :Fast pyrolysis; slow pyrolysis; pyrolysis oil; commercial process; lignocellulose; Snabb pyrolys; långsam pyrolys; pyrolysolja; kommersiell process; lignocellulosa;

    Sammanfattning : När befolkningsmängden ökar och teknisk och ekonomisk utveckling sker så påverkas även energianvändningen. Detta ställer krav på att energitillförseln är säker, stabil och hållbar. LÄS MER

  4. 23. En ekonomisk analys av att använda en Quartzenebaserad puts vid energieffektivisering av äldre q-märkta byggnader.

    M1-uppsats, Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Författare :Anton Fredriksson; Christoffer Fors Edman; [2017]
    Nyckelord :Energy efficiency; Q-label buildings; thermal insulation plaster; Quartzene; LCC; Energieffektivisering; q-märkta byggnader; värmeisolerande puts; Quartzene; LCC.;

    Sammanfattning : Older q-labeled buildings may not be changed according to the corruptions banning, resulting in difficulties in energy efficiency of q-marked buildings, as traditional energy efficiency methods cannot be used without altering the building's properties. This report examines the profitability to energy-efficient a q-labeled building with a heat insulating plaster based on Z1 quartzene and lime cement render. LÄS MER

  5. 24. Waste heat storage and utilization for the case of National Veterinary Institute (SVA), Uppsala, Sweden

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Författare :Stanislav Proshyn; Iryna Bulich; [2017]
    Nyckelord :waste heat; direct distribution; thermal energy storage; hot water storage tank; borehole seasonal storage; heat pump; IDA ICE plant modelling; savings-to-investment ratio; life-cycle costs; Technology and Engineering;

    Sammanfattning : The incineration furnace at National Veterinary Institute (SVA) in Uppsala, Sweden, runs approximately 2,150 hours a year and generates a large amount of waste heat. Some of this heat is partially recovered, and is used for heating one of the main buildings during the furnace operation. LÄS MER

  7. 25. Comparative analysis of development potential for biomass- vs coal-fired powerplants in Henan province,China

    Master-uppsats, KTH/Energiteknik

    Författare :Dongcan Wang; [2017]
    Nyckelord :Coal-fired power plant; biomass; biogas; steam turbine; GTCC system; environment; ; kolkraft; kolkraftverk; biogas; biogasanläggning; ångturbin; GTCC system; ;

    Sammanfattning : Coal-fired power plants’ typically large capacity and relatively low electricity generation costs in the Chinese power market can be compared with their typically low specific thermal efficiency and older age on average. At the same time, the environment pollution caused by local coal-fired power plants has started to receive due attention. LÄS MER