Sökning: "steam accumulator"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden steam accumulator.

  1. 1. Modellering av ångsystem på pappersmassabruk

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Daniel Cederlund; Lukas Mårtensson; [2022]
    Nyckelord :Ångsystem Modell Dynamisk Simscape Simulink Pappersmassa Friblåsning Turbin Ångturbin Balans Reglering; Technology and Engineering;

    Sammanfattning : The following thesis describes the construction of a model, made in Simscape, of an existing steam cycle at a pulp mill located in the south of Sweden. The pulp mill has had problems with produced steam being wasted, and the purpose of the model was to trim the regulation of existing components to reduce this surplus of steam. LÄS MER

  3. 2. Steam Prediction at an Integrated Pulp and Paper Mill : Mondi Dynäs in Kramfors Municipality

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Energivetenskap

    Författare :Jimmy Sehlberg; [2020]
    Nyckelord :Steam prediction; Prediction; Industrial prediction; ångprediktion;

    Sammanfattning : The most important energy carrier at an integrated pulp and paper mill is steam, it is essential to power components and machinery. The components create variations in the steam grid network, variations that exceed the capacity of the steam accumulator. LÄS MER

  4. 3. Industrial Demand Response in the Primary Reserve Markets : A case study on Holmen’s Pulp and Paper Mill

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

    Författare :Federica Tomasini; [2019]
    Nyckelord :industrial demand response; pulp and paper industry; primary frequency control; stochastic optimization;

    Sammanfattning : This thesis stems from the interest of Holmen group to investigate the opportunitiesavailable for large electricity consumers in the Swedish primary reserve markets.The study performed focuses on one of Holmen's paper mill and it aims at identifyinga load inside the production process that is suitable for providing frequency containmentservices for the grid. LÄS MER

  5. 4. Ackumulering av ånga : Effektivare ångproduktion vid Akzo Nobel Stockvik

    Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Avdelningen för kemiteknik

    Författare :Rikard Breitkreuz; [2017]
    Nyckelord :Ångackumulator; energieffektivisering; processindustri;

    Sammanfattning : Rapporten avser att undersöka om det finns möjlighet att installera en ång-ackumulator på ångcentralen på Akzo Nobel Stockviksamt att dimensionera ackumulatorn. Ackumulatorns syfte är att jämna ut ångproduktionen då det finns ett intermittent behov av ånga hos ångcentralens kunder. LÄS MER

  7. 5. Energy efficiency improvements of Mondi Dynäs paper mill : A survey of steam and condensate with improvement measures for increased condensate recovery

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för tillämpad fysik och elektronik

    Författare :Gadar Hussein; [2014]
    Nyckelord :Steam and condensate; increased condensate return; improvements measure; pulp paper mill;

    Sammanfattning : This thesis has been performed at Mondi kraft pulp and paper mill located in Sweden, Kramfors Dynäs due to the low return rate of condensate. Currently, the return rate is only at 65 - 75 %. This is problematic as the demineralization process is operating on full capacity and thus requires a reduced make-up water need. LÄS MER