Search for dissertations about: "storage tanks"

Showing result 1 - 5 of 17 swedish dissertations containing the words storage tanks.

  2. 1. Mixing and Stagnation in Drinking Water Storage Tanks

    Author : Ola Nordblom; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; storage tank; service reservoir; jet mixing; khappa - epsilon model; stagnation; tracer test; temperature measurement; thermal stratification; buoyant jets; CFD model;

    Abstract : This thesis contributes to studies of the assessment of mixing conditions in drinking water storage tanks and analyses of parameters governing mixing rates and formation of stagnant zones. The work also contributes to a validation of Computational Fluid Dynamics (CFD) models of jet-forced mixing in storage tanks under neutral and thermally stratified conditions. READ MORE

  4. 2. Energy Efficiency through Thermal Energy Storage : Possibilities for the Swedish Building Stock

    Author : Johan Heier; Viktoria Martin; Chris Bales; Signhild Gehlin; Högskolan Dalarna; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal energy storage; buildings; energy efficiency; energy savings; peak load reduction; Swedish building stock; termisk energilagring; byggnader; energieffektivisering; energibesparing; toppbelastningsutjämning; Sveriges byggnadsbestånd; Värmelagring i byggnader;

    Abstract : The need for heating and cooling in buildings constitutes a considerable part of the total energy use in a country and reducing this need is of outmost importance in order to reach national and international goals for reducing energy use and emissions. One important way of reaching these goals is to increase the proportion of renewable energy used for heating and cooling of buildings. READ MORE

  5. 3. Smart control of PV and exhaust air heat pump systems in single-family buildings

    Author : Emmanouil Psimopoulos; Joakim Widén; Chris Bales; Tomas Persson; Jarek Kurnitski; Uppsala University; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; photovoltaics; heat pump; forecast services; thermal storage; electrical storage; control algorithms; TESHP Test av solvärmepumpsystem; TESHP Test av solvärmepumpsystem;

    Abstract : Recently, decentralized household photovoltaic (PV) systems have become more affordable and there is a tendency to decrease subsidies for the PV excess electricity fed into the grid. Therefore, there is growing interest in methods to increase the self-consumption (SC), which is the part of the electricity produced by PV and directly consumed on buildings. READ MORE

  6. 4. Computational fluid dynamics for detention tanks : simulation of flow pattern and sedimentation

    Author : Åsa Adamsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sanitary engineering; tracer study; CFD; flow patter; sedimaentation; bed shear stress; detention tank; storage tank; numerical simulation;

    Abstract : .... READ MORE

  7. 5. Three-Dimensional Simulation and Physical Modelling of Flows in Detention Tanks - Studies of Flow Pattern, Residence Time and Sedimentation

    Author : Åsa Adamsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tracer study; pond; numerical simulation; particle tracking; CFD; bed shear stress; storage tank; stormwater; detention tank; flow pattern;

    Abstract : Improving effluent water quality to receiving waters using stormwater ponds and storage tanks is acknowledged to be an effective method. The performance of the method depends however on flow conditions such as velocity distribution, short-circuiting currents and the volume through which the influent water flows, the so called effective volume. READ MORE