Sökning: "fuel efficiency"

Visar resultat 1 - 5 av 469 uppsatser innehållade orden fuel efficiency.

  1. 1. Möjligheter till ökad driftsäkerhet och kostnadseffektivitet i fjärrvärmenät : En simulerings- och optimeringsstudie på Kalmar Energi

    Master-uppsats, Linköpings universitet/Energisystem; Linköpings universitet/Energisystem

    Författare :Carl Torstensson; Daniel Nordborg; [2019]
    Nyckelord :District Heating; NetSim; Simulation; Optimization; Bypass; Bottleneck; Differential pressure; DH; Fjärrvärme; Förbikoppling; Flaskhals; NetSim; Simulering; Optimering; Differenstryck;

    Sammanfattning : Since district heating is the most common way of space heatingin Sweden, continual improvements of theefficiency of production and distribution of district heating is crucial. The purposeof this report is therefore to, using Kalmar Energi as an example, study how the production and distribution of district heating is affected by introducing a bypass pipeat a critical point in the network, and to investigate howcost efficiency might be achieved. LÄS MER

  2. 2. Influence of nitrocarburization on the thermomechanical fatigue properties of ductile iron for exhaust components : Analysis and comparisons of TMF-properties

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Karl Larsson; [2019]
    Nyckelord :Thermo-mechanical fatigue; low cycle fatigue; thermal strain; ductile cast iron; nitrocarburizing;

    Sammanfattning : New stricter environmental legislation requires lower emissions and fuel consumption of automotive engines. Therefore the fuel efficiency must be increased but this leads to higher loads in the engine. As for the exhaust system it is affected by higher thermomechanical loads. LÄS MER

  3. 3. Maximal CO2-reduktion per investerad krona för personbilar: En bred systemanalys

    Master-uppsats, Lunds universitet/Institutionen för Energivetenskaper

    Författare :Johan Kollberg; [2019]
    Nyckelord :biodrivmedel; elbil; koldioxid; CO2; växthusgas; livscykelanalys; batteri; bränsleförbrukning; kostnad; produktion; bio fuels; electric vehicles; carbon dioxide; greenhouse gas; life cycle analysis; battery; fuel efficiency; cost; production; Technology and Engineering;

    Sammanfattning : This study examines the cost efficiency of reducing carbon emissions for personal vehicles by changing from petrol to either bio fuels or electric operation. Based on own simulations of fuel consumption, life cycle-emissions and -production costs are derived based on existing knowledge through previous studies. LÄS MER

  4. 4. HYDROGEN-FIRED GAS TURBINE FOR POWER GENERATION WITH EXHAUST GAS RECIRCULATION : Emission and economic evaluation of pure hydrogen compare to natural gas

    Master-uppsats, Mälardalens högskola/Framtidens energi; Mälardalens högskola/Framtidens energi

    Författare :Nemir Gibrael; Hamse Hassan; [2019]
    Nyckelord :harmful emission; natural gas; fuel reforming process; hydrogen fired gas turbine; exhaust gas recirculation; techno-economic analysis;

    Sammanfattning : The member states of European Union aim to promote the reduction of harmful emissions. Emissions from combustion processes cause effects on human health and pose environmental issues, for example by increasing greenhouse effect. LÄS MER

  5. 5. Adoption of high-technology products in emerging markets: The ACE-1 advanced biomass cookstove in rural Cambodia

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anne Baltruschat; [2019]
    Nyckelord :Sustainable Development; Energy access; Clean cooking; Advanced biomass stoves; Adoption;

    Sammanfattning : This study examines the adoption of clean cooking technologies in developing countries with a focus on the ACE-1 advanced biomass stove (ABS). Marginalized communities in rural environments are often exposed to high levels of Household Air Pollution (HAP) due to the common use of traditional cookstoves. LÄS MER