Search for dissertations about: "bulk reaction"

Showing result 1 - 5 of 135 swedish dissertations containing the words bulk reaction.

  2. 1. Absorption of Sound : On the effects of field interaction on absorber performance

    Author : Anna Färm; Mats Åbom; Ragnar Glav; Susann Boij; Gareth Bennett; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sound absorption; Porous absorbers; Bulk reaction; Local reaction; Boundary layer; Grazing flow; Temperature gradients; Surface impedance; Sound field; Pass-by noise; Vehicle and Maritime Engineering; Farkostteknik;

    Abstract : Environmental noise has for decades been a well known problem, especially in urban areas. As noise requirements for vehicles are sharpened, noise reducing concepts are needed in early design stages requiring accurate simulations to support the design. READ MORE

  4. 2. Electrochemical Investigation of the Reaction Mechanism in Lithium-Oxygen Batteries

    Author : Jonas Lindberg; Göran Lindbergh; Ann M. Cornell; Bryan McCloskey; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-Oxygen Batteries; Lithium Mass Transport; Oxygen Solubility; Reaction Rate Law; Reaction Mechanism; Electrode Passivation; Ultramicroelectrodes; Electrochemical Quartz Crystal Microbalance; EQCM; Chemical Engineering; Kemiteknik;

    Abstract : Lithium-oxygen batteries, also known as Lithium-air batteries, could possibly revolutionize energy storage as we know. By letting lithium react with ambient oxygen gas very large theoretical energy densities are possible. READ MORE

  5. 3. On the Influence of Mixing and Scaling-Up in Semi-Batch Reaction Crystallization

    Author : Marika Torbacke; KTH; []
    Keywords : reaction crystallization; precipitation; benzoic acid; macromixing; mesomixing; micromixing; semi-batch; loop reactor; backmixing; colour experiments; scaling-up;

    Abstract : Semi-batch crystallization experiments have been performedboth in a loop reactor and in stirred tank reactors.Hydrochloric acid was fed to a stirred solution of sodiumbenzoate, and benzoic acid immediately formed. Benzoic acid isformed in excess of the solubility making the solutionsupersaturated.The loop reactor is U-shaped. READ MORE

  6. 4. Surface and Bulk Reactivity of Iron Oxyhydroxides : A Molecular Perspective

    Author : Xiaowei Song; Jean-François Boily; Glenn Waychunas; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Iron oxyhydroxide; adsorption; water; carbon dioxide; FTIR; molecular resolution;

    Abstract : Iron oxyhydroxide (FeOOH) mineral plays an important role in a variety of atmospheric, terrestrial and technological settings. Molecular resolution of reactions involving these minerals is thereby required to develop a fundamental understanding of their contributions in processes taking place in the atmosphere, Earth’s upper crust as well as the hydrosphere. READ MORE

  7. 5. On the influence of micromixing in reaction crystallization

    Author : Magnus Lindberg; KTH; []
    Keywords : ;

    Abstract : In crystallization, the mean crystal size is governed by thetotal number of crystals sharing the total mass produced in theprocess. In reaction crystallization, it is believed that asignificant part of the crystals is formed during the localcontacts between reactant solutions close to the feed point. READ MORE