Sökning: "Pool"

Visar resultat 6 - 10 av 624 avhandlingar innehållade ordet Pool.

1. 6. Steam condensation in a water pool and its effect on thermal stratification and mixing

   Författare :Ignacio Gallego-Marcos; Pavel Kudinov; Walter Villanueva; Dominique Bestion; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steam injection; EHS EMS; blowdown pipes; spargers; chugging; oscillatory bubble; CFD; condensation pool; stratification; mixing; Engineering Mechanics; Teknisk mekanik;

   Sammanfattning : The Pressure Suppression Pool (PSP) of a Boiling Water Reactor (BWR) is a large heat sink designed to limit the containment pressure by condensing steam released from the primary coolant system. The development of thermal stratification is a safety concern since it leads to higher containment pressures than in completely mixed conditions, and can affect the performance of systems such as the emergency core cooling and containment spray, which the use PSP as a source of water. LÄS MER

3. 7. Essays on the Financial Aspects of Power Prices at the Nord Pool Power Exchange

   Författare :Daniel Deng; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Nord Pool; market efficiency; cointegration; EGARCH; convenience yield; call option;

   Sammanfattning : Essay I examines the market efficiency issues at the Nord Pool power exchange in the September 1995 - July 2002 period. A unique characteristic of this electricity exchange is the high hydropower proportion in the traded electricity; water in the hydro reservoir acting as a hydropower inventory therefore plays an important role in the pricing of electricity. LÄS MER

4. 8. Gas Metal Arc Melt Pool Modelling : Effect of welding position and electromagnetic force mode

   Författare :Pradip Aryal; Isabelle Choquet; Högskolan Väst; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas metal arc welding; Gravitational force; Substrate orientation; Electromagnetic force modelling; Free surface deformation; Computational Fluid Dynamics; OpenFOAM; Gasmetallbågsvetsning; Gravitation; Svetsläge; Elektromagnetisk kraftmodellering; Smältytans rörelser; Computational Fluid Dynamics; OpenFOAM; Production Technology; Produktionsteknik;

   Sammanfattning : Gas metal arc is a high-efficiency and widely used heat source for metal processing applied predominantly in welding and additive manufacturing. In this study, it was applied to welding. LÄS MER

5. 9. Pool Boiling on Structured Surfaces: Heat Transfer and Critical Heat Flux : Experiments and Mechanistic Modelling

   Författare :Zhen Cao; NanoLund: Centre for Nanoscience; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pool boiling; heat transfer; critical heat flux; bubble dynamics; surface modification;

   Sammanfattning : In this thesis, pool boiling heat transfer was experimentally studied on structured surfaces with dielectric liquids (HFE-7200, NOVEC-649, FC-72), organic liquids (Acetone, Pentane) and deionized water.In the first step, nanoparticle coatings on copper surfaces were prepared by an electrophoretic deposition method, with Cu-Zn nanoparticles (100 nm) and Cu nanoparticles (150 nm). LÄS MER

7. 10. Exposure to trichloramine, trihalomethanes and endotoxins : adverse respiratory and ocular effects among Swedish indoor swimming pool workers

   Författare :Jessica Westerlund; Pål Graff; Louise Fornander; Håkan Löfstedt; Christer Janson; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Trichloramine; trihalomethanes; endotoxins; occupational exposure; ocular health effects; respiratory health effects; swimming pool facilities;

   Sammanfattning : Indoor swimming pool facilities often use chlorine for pool water disinfection. Chlorine can also contribute to the formation of unwanted disinfection byproducts (DBPs). Trichloramine and trihalomethanes (THMs) are DBPs formed in swimming pool water and swimming pool air causing occupational exposure. LÄS MER