Sökning: "Shroud"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet Shroud.

  1. 1. Irradiation Embrittlement on a Core Shroud from Decommissioned BWR

    Master-uppsats, KTH/Fysik

    Författare :Åsa Bjåland; [2023]
    Nyckelord :hardness; Vickers hardness test; ATT; yield strength; irradiation embrittlement; welds; hårdhet; Vickers hårdhetstest; ATT; sträckgräns; bestrålningsförsprödning; svetsar;

    Sammanfattning : Irradiation embrittlement is a problematic issue for internal structures, such as acore shroud, in a light water reactor. It is characterized by decreased ductility andtoughness, and increased yield strength and hardening due to increased dislocations. LÄS MER

  3. 2. Acoustic properties of a 5G Telecom Equipment Shroud Design for Noise suppression

    Master-uppsats, KTH/Marcus Wallenberg Laboratoriet MWL

    Författare :David Andersson; [2021]
    Nyckelord :Acoustics; 5G; Shroud; Telecom; Noise reduction; Akustik; 5G; Kåpa; Teleutrustning; Ljudisolering;

    Sammanfattning : As technology moves forward it has a tendency to consume more and more power that needs to be cooled by bigger and louder fans, this is especially true for the new generation of 5G radio equipment. This Master thesis is a collaboration with Ericsson and attempts to construct a shroud for containing a number of 5G radio units whilst attenuating the fan noise of the units as effectively as possible. LÄS MER

  4. 3. Thermal Properties of a 5G Telecom Equipment Casing Design for Noise Suppression

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

    Författare :Per Rundström; [2021]
    Nyckelord :Acoustics; Casing; Shroud; Telecom; Thermal; Akustik; Hölje; Strömningsmekanik; Telecom; Värmeöverföring;

    Sammanfattning : Around the world the implementation of the 5G mobile network is under way. With this latest generation of mobile data transfer comes many advantages compared to the previous generations. One tradeoff however is the reduced range of the transmitting radios due to the higher frequencies of the signal. LÄS MER

  5. 4. Lärare - en diskurs i förändring : Perspektiv på lärarbrist och profession

    Magister-uppsats, Karlstads universitet/Institutionen för pedagogiska studier (from 2013)

    Författare :Roger Månsson; [2020]
    Nyckelord :teacher shortage; profession; professionalization; discourse; WPR; lärarbrist; profession; professionalisering; diskurs; WPR;

    Sammanfattning : Abstract From a Foucault-inspired, poststructuralistic approach this study reviews the problem of teacher shortage. Its purpose is to leave a contribution of alternative perspectives on teacher shortage, and relate them to the professionalization of the teacher occupation. LÄS MER

  7. 5. Investigation of performance and surge behavior of centrifugal compressors through CFD simulations

    Master-uppsats, KTH/Mekanik

    Författare :Francesco Tosto; [2018]
    Nyckelord :centrifugal compressor; Computational Fluid Dynamics CFD ; RANS; surge; compressible uid dynamics; Design of Experiments DoE .; centrifugalkompressor; CFD-simulering; RANS; overskott; komprimerbar vatskedynamik; Design of Experiments DoE ;

    Sammanfattning : The use of turbocharged Diesel engines is nowadays a widespread practice in the automotive sector: heavy-duty vehicles like trucks or buses, in particular, are often equipped with turbocharged engines. An accurate study of the flow field developing inside both the main components of a turbocharger, i.e. LÄS MER