Sökning: "exergy analysis"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden exergy analysis.

  1. 1. Exergy Analysis in Buildings A complementary approach to energy analysis

    Författare :Marco Molinari; Folke Björk; Gudni Jóhannesson; Ivo Martinac; []
    Nyckelord :Exergy; Energy; Building systems performance; Built environment.;

    Sammanfattning : Though mandatory to be pursued, improved energy efficiency is not the only target to reach. The quality of energy has to be assessed as well. Most of the overall energy use in residential building is for low temperature heat, i.e. LÄS MER

  2. 2. Aerothermodynamics and exergy analysis in turbocharger radial turbine

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Shyang Maw Lim; Mihai Mihaescu; Anders Dahlkild; Ricardo Martinez-Botas; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pulsatile exhaust flow; turbine; turbocharger; Detached Eddy Simulation; heat transfer; exergy; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Coupling of turbomachine to reciprocating automotive engine in turbocharging leads to complex fluid flow and thermal characteristics in the turbine. Some undesirable characteristics include heat transfer, flow pulsation and secondary flow due to the complex geometry of the upstream exhaust manifold. LÄS MER

  3. 3. Improving Ship Energy Efficiency through a Systems Perspective

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Francesco Baldi; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modelling; shipping; exergy analysis; energy systems; energy efficiency; energy analysis; systems analysis;

    Sammanfattning : The last years have been particularly challenging for the shipping industry. Fuel prices have increased to levels only seen during the oil crisis in the 70's, and environmental regulations have grown much stricter than in the past. Climate change, at a global level, is going to become a major threat to society. LÄS MER

  4. 4. On the Selection of Methods and Tools for Analysis of Heat and Power Plants

    Detta är en avhandling från Division of Thermal Power engineering, Lund Institute of Technology, P.O. Box 118, SE-221 00 LUND, Sweden

    Författare :Pernilla Olausson; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; applied thermodynamics; Termisk teknik; termodynamik; Thermal engineering; neural networks; LCA; environment; thermoeconomy; exergy; economics; Methods and tools; energy analysis;

    Sammanfattning : The business climate of the energy market has been eventful over the last two decades, particularly with the introduction of the deregulated electricity market and promotion of environmental issues. This has subsequently lead to new analysis criteria, influencing both technology requirements and production costs. LÄS MER

  5. 5. On Exergy and Aero Engine Applications

    Detta är en avhandling från Division of Thermal Power engineering, Lund Institute of Technology, P.O. Box 118, SE-221 00 LUND, Sweden

    Författare :Oskar Thulin; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Installed propulsion unit performance; Turbofan; Aero engine; Performance modelling; Exergy analysis;

    Sammanfattning : Aero engine performance analysis is highly multidimensional using various measures of component performance such as turbomachinery and mechanical efficiencies, and pressure loss coefficients. Using conventional performance analysis, relying on only the first law of thermodynamics, it is possible to understand how the performance parameters affect the component performance, but not how the component performance relates to the system performance. LÄS MER