Sökning: "CST"

Visar resultat 1 - 5 av 50 uppsatser innehållade ordet CST.

  1. 1. Methods for Evaluating Dewatering Properties of Sewage Sludge

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Nadia Abdalla; [2019]
    Nyckelord :sludge dewatering; sewage sludge; laboratory scale sludge treatment; dewatering sludge; dewatering sewage sludge; CST; capillary suction time test; centrifuge; lab-centrifuge; rheology; polymers conditioning; sludge conditioning; centrifuge on lab scale; evaluation of lab experiments; CST evaluation; mechanical de-watering evaluation; sludge dewatering at lab; lab scale dewatering process; sludge dewatering methods at lab; Chemical engineering; Lab centrifuge; Capillary Suction Time CST ; Mechanical sludge dewatering evaluation; Polymers conditioning of sludge; sewage sludge dewatering; methods for sludge dewatering at lab; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Chemistry;

    Sammanfattning : After the sewage wastewater is collected from different households and directed to the treatment plants, it goes through several processes, which are physical, chemical and biological. The different processes remove the contaminant, and produce a semi-solid material named sludge. Sludge has a huge amount of liquid. LÄS MER

  2. 2. Introducing a central receiver system for industrial high-temperature process heat applications : A techno-economic case study of a large-scale CST plant system in a South African manganese sinter plant

    Master-uppsats, KTH/Kraft- och värmeteknologi; KTH/Kraft- och värmeteknologi

    Författare :Maria Hallberg; Elin Hallme; [2019]
    Nyckelord :Solar energy; concentrating solar thermal; CST; central receiver system; CR; HelioPod; high-temperature process heat; manganese; business case; Solenergi; koncentrerad termisk solvärme; CST; soltorn; HelioPod; högtempererad processvärme; mangan; affärsmodell;

    Sammanfattning : The objective of this thesis was to investigate the potential for introducing a concentrating solar thermal (CST) central receiver plant system based on flexible heliostats - HelioPods - to provide high-temperature process heat in industrial applications. A CST plant system was designed in MATLAB, optically simulated for three design days in the ray-tracing software Tonatiuh and further analyzed in MATLAB by interpolating the results for each hour of the year. LÄS MER

  3. 3. Low-dispersive Leaky-wave Antennas: A Viable Approach for Fifth Generation (5G) mmWave Base Station Antennas

    Master-uppsats, KTH/Elektroteknisk teori och konstruktion

    Författare :Oskar Dahlberg; [2019]
    Nyckelord :;

    Sammanfattning : In this work, a method to achieve reduced beam-squint in fully metallic leaky-wave antennas is proposed and its applicability for high frequency, high gain, base station antennas in future communication networks is indicated. The antenna is built in gap waveguide technology, where the fundamental mode is allowed to leak by removal of one of the waveguide walls. LÄS MER

  4. 4. Optimering av driftstemperatur vid mesofil rötning av slam : - funktionskontroll vid Uppsalas reningsverk

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Johanna Andersson; [2019]
    Nyckelord :Mesophilic; anaerobic digestion; sewage sludge; temperature change; BMP-test; energy balance; dewaterability; CST; Mesofil; rötning; avloppsslam; temperaturförändring; satsvist utrötningsförsök; energibalans; slamavvattning; CST;

    Sammanfattning : För att minska klimatpåverkan är energisnåla processer och användning av fossilfria bränslen viktigt. Vid stabilisering av avloppsslam vid reningsverk är en vanlig metod rötning som förutom att ta hand om slammet även producerar biogas, ett fossilfritt bränsle med låga växthusgasutsläpp. LÄS MER

  5. 5. Leakage Suppression for PCB-Waveguide Interconnects Using Hybrid Metasurfaces

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

    Författare :David Gonzalez Gallardo; [2019]
    Nyckelord :;

    Sammanfattning : A metasurface is a two dimensional periodic structure which possessesmacroscopic equivalent electromagnetic properties such as anisotropy, negativerefractive index and Electromagnetic Band Gaps (EBG). EBGs havebeen used for the design of waveguide lters and gap waveguides. LÄS MER