Sökning: "Transient heat flow"

Visar resultat 16 - 20 av 40 uppsatser innehållade orden Transient heat flow.

  1. 16. High Temperature Co-Electrolysis Model for Sector Coupling : Thermodynamic and Detailed Models of Solid Oxide Electrolysis Cells and Systems

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :FAISAL SEDEQI; [2020]
    Nyckelord :;

    Sammanfattning : The increased development of intermittent renewable energy supplies not only demands robust storage technology, but also alternative means to produce materials in ways to avoid fossil fuel consumption and make use of the increasing electricity supply. Power to gas (PtG) through solid oxide cell (SOC) co-electrolysis reactors provide an attractive manner to overcome both challenges. LÄS MER

  3. 17. Ultrafast Transient coherent Raman Microscopy(TRaM)

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

    Författare :Eric Nilsson; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The aim of this project was to construct a measurement setup to be able to measure the decoherence time of optical phonons. Optical phonons lose coherence by decaying to intermediate phonons and eventually to acoustic phonons which can carry heat, which is why measuring the coherence time of optical phonons is important to characterizing heat flow on short time scales. LÄS MER

  4. 18. Dynamic Temperature Model of an Automatic Transmission

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Yao Zhang; [2019]
    Nyckelord :Dynamic model; transmission; gearbox; temperature; lumped box;

    Sammanfattning : This report presents the development of a dynamic temperature model for an automatic transmission in a Volvo Cars passenger vehicle. The model should simulate the oil to cooler temperature and flow from the transmission. A mathematical approach to use lumped masses for different parts of the transmission was used. LÄS MER

  5. 19. Investigating the energy demand and supply of a residential neighborhood in Malmö

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Tianqi Wang; [2018]
    Nyckelord :Building energy performance; Solar energy; Micro wind turbine; Residential buildings.; Technology and Engineering;

    Sammanfattning : Facing the climate change and the energy crisis, the governments are taking steps to reduce the energy use and enhance the integration of renewable energy installations. Built environment is attributed to 40% of the global energy use, and the literature indicates that integrating the local renewable energy sources to the grid and meanwhile renovating the buildings can significantly improve the energy performance of the building sector. LÄS MER

  7. 20. CFD Analysis of Heat Transfer in an Innovative Facade System

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Christoffer Bågholt; [2018]
    Nyckelord :Computational Fluid Mechanics; Heat Transfer; Building Physics;

    Sammanfattning : New innovative façade systems that are well thought out, rational, sustainable and energy efficient are needed for renovation of old buildings to drastically reduce the heat losses through walls and to improve indoor conditions. In order to achieve the above mentioned goal, new innovative modular systems that can be mounted on site with ease are an interesting alternative. LÄS MER