Sökning: "Thermoelectrical"

Hittade 5 uppsatser innehållade ordet Thermoelectrical.

  1. 1. Simulations of Pre-arcing Times in Diazed Fuses by an Electrothermal Dynamic Model

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Amadeus Andersson Jonsson; [2020]
    Nyckelord :Diazed fuses; Pre-arcing time; The finite differ-ence method; thermoelectrical fuse model;

    Sammanfattning : The determination of the pre-arcing time of a fuse given a specific current is crucial during the selection process if the fuse is to be effective for the given application. Often the data supplied by the manufacturer is enough to determine this time, however this is not always the case. LÄS MER

  3. 2. Design of a Carbon Fiber Thermocouple for Elevated Temperature Measurements

    Master-uppsats, KTH/Materialvetenskap

    Författare :Marcus Holmström; [2020]
    Nyckelord :Thermocouple; Carbon Fiber; Thermoelectrical; Electromotive Force; Polyacrylonitrile; Rayon; Termoelement; Kolfiber; Termoelektrisk; Elektromotorisk spänning; Polyacrylonitrile; Viskos;

    Sammanfattning : Thermocouples are one of the most commonly used instruments for thermometry at elevated  temperatures. As of today, there are only a few types of thermocouples that are built to withstand a temperature beyond 1600 °C,however they usually have a temperature measurement uncertainty of around 1% at these high temperatures. LÄS MER

  4. 3. A review on energy harvesting from roads.

    Master-uppsats, KTH/Väg- och banteknik

    Författare :Symeoni Andriopoulou; [2012]
    Nyckelord :;

    Sammanfattning : 　 Harvesting Energy stands alone as one of the most promising techniques for approaching the global energy problem without depleting natural resources. Energy harvesting technologies from road infrastructure is a new research territory that encompasses technologies that capture the wasted energy occurred at pavements, accumulate and store it for later use. LÄS MER

  5. 4. Optimization of the Electric Properties of Thermoelectric Generators

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Adham Shawwaf; [2010]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The efficiency in an internal combustion engine ranges from 25% to 45%. About 50% - 85% of the overall energy losses in a combustion engine is heat which is either cooled away by the vehicle's radiator or blown out with the exhaust gases. LÄS MER

  7. 5. Thermoelectrical Characterization of Organic Materials

    Master-uppsats, Institutionen för teknik och naturvetenskap

    Författare :Abdellah Malti; [2009]
    Nyckelord :thermoelectrics; thermogenerators; n-type organic materials; TDAE doping;

    Sammanfattning : Organic semiconductors are prime candidates for thermoelectric applications, because one can maximize the dimensionless figure of merit ZT (by maximizing the Seebeck coefficient and electrical conductivity) while simultaneously minimizing the thermal conductivity. In this work, we explore a few materials and try to find their thermoelectric characteristics. LÄS MER