Sökning: "Johannes Ansved"

Hittade 2 uppsatser innehållade orden Johannes Ansved.

1. 1. Investigation of Variable Speed Technology when Converting Hydropower Kaplan Turbines into Fixed Propeller Turbines

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Johannes Ansved; [2022]
   Nyckelord :hydropower; variable speed; kaplan; turbines; model; simulation;

   Sammanfattning : With an evolving energy system, an increased flexibility is necessary, placing additional demand on hydropower plants. New technology, in particular full size frequency converters (FSFC) and doubly fed induction machines (DFIM), allows hydropower turbines to run at different speeds than originally designed, thus making the turbine more flexible. LÄS MER

3. 2. Innovativt spillvärmesystem för Cytiva

   Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Johannes Ansved; Anton Barr; Marcus Baumann; Matilda Blomander; Carl Hedman; Erik Kempe; Viktor Nerlander; Arvid Press; [2020]
   Nyckelord :waste heat; python; model; distillation; energy; spillvärme; python; modell; destillation; energi;

   Sammanfattning : In this paper different waste heat recovery systems are investigated for Cytiva’s solvent recyclingfacility. Currently steam is used to distill ethanol before cooling it with condenser fans. Thecooling demand varies severely, and peak demand need to be handled with smart energy storagesolutions such as hot water storage tanks or salt storage. LÄS MER