Sökning: "exergi"

Hittade 4 avhandlingar innehållade ordet exergi.

  1. 1. Performance evaluations of high-temperature cooling systems in Mediterranean climate

    Författare :Henrikki Pieskä; Christophe Duwig; Saqib Javed; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High-temperature cooling; building energy simulations; exergy; Högtemperaturkyla; byggnadsenergisimuleringar; exergi; Strömnings- och klimatteori; Fluid and Climate Theory;

    Sammanfattning : Cooling demand in Europe is predicted to grow 25-50% between 2020-2050. Meanwhile, the EU aims to lower the greenhouse gas emissions from its building stock by 60%. Therefore, it is essential to find solutions that can meet the growing cooling demand with less energy and integrate renewable energy sources. LÄS MER

  3. 2. Designing Energy-Sensitive Interactions : Conceptualising Energy from the Perspective of Electric Cars

    Författare :Anders Lundström; Jan Gulliksen; Kristina Höök; Cristi Bogdan; Ron Wakkary; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interaction design; Electric vehicles; Range anxiety; Energy management; Battery management; Intergy; Exergy; Anergy; Energy-Sensitive Interactions; Energy dynamics; Energy compromises; Empowerment; Resourceful interaction; Människa-datorinteraktion; Human-computer Interaction;

    Sammanfattning : As technology is increasingly used in mobile settings, energy and battery management is becoming a part of everyday life. Many have experienced how quickly a battery can be depleted in a smartphone, laptop or electric cars, sometimes causing much distress. LÄS MER

  4. 3. An evaluation of regional sustainability by analysing energy and carbon flows – A study of Jämtland, Sweden

    Författare :Torbjörn Skytt; Bengt-Gunnar Jonsson; Fredrik Ståhl; Magdalena Svanström; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Regional sustainability; Energy flows; Exergy; Carbon GHG fluxes; Sustainability indicators; carbon dioxide emissions; methane emissions; nature emissions;

    Sammanfattning : Models showing the anthropogenic and natural flows of two sustainability indicators; carbon based GHG and energy (as work energy) have been made for the Swedish region Jämtland. The methodology used was inspired by the study sustainability analysis conducted on the small Danish island Samsø using the above two indicators. LÄS MER

  5. 4. Exergy Evaluation of Engine Operations : Combustion Process to Exhaust Flow

    Författare :Beichuan Hong; Andreas Cronhjort; Mihai Mihaescu; Sundar Rajan Krishnan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal efficiency; Exergy analysis; Marine engine; Lean-burn combustion; Pulsating flow measurement; Pitot tube; Sensitivity analysis; Energy and exergy losses; Termisk verkningsgrad; Exergianalys; Marinmotor; Magertbränningsförbränning; Pulserande flödesmätning; Pitotrör; Känslighetsanalys; Energiförluster och exergiförluster; Machine Design; Maskinkonstruktion; Energiteknik; Energy Technology;

    Sammanfattning : Transitioning the transport sector to clean energy sources is crucial for mitigating greenhouse gas emissions and achieving carbon neutrality. A collaborative solution, combining both electric vehicles and combustion engines using renewable fuels, may prove more effective than competitive ones. LÄS MER