Search for dissertations about: "particle removal"

Showing result 1 - 5 of 92 swedish dissertations containing the words particle removal.

  2. 1. Eulerian-Lagrangian modeling of particle motion in exhaust gas aftertreatment systems

    Author : Henrik Ström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; urea-SCR; particle trapping; flow-through filter; urea decomposition; diesel particulate matter; particle motion; particle filter; AdBlue-spray; Eulerian-Lagrangian modeling;

    Abstract : In the work to design and optimize new aftertreatment system devices for NOx reduction and particulate matter removal in lean engine exhaust (such as diesel exhaust), it is of great help to be able to perform quick, robust and reliable computer simulations of system performance. A suitable platform for such simulations is Computational Fluid Dynamics (CFD) software. READ MORE

  4. 2. Particle Characterization in the Exhaust Devices of Direct Injection Engines

    Author : Arun Prasath Karuppasamy; Anders Christiansen Erlandsson; Hanna Bernemyr; Alexander Bergmann; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle number; Particle size distribution; turbocharger; SCR; Exhaust after-treatment system; Particle dilution and conditioning; Partikelantal; storleksfördelning av partiklar; turboladdare; SCR; efterbehandlingssystem; avgasbehandlingssystem; partikelspädning och partikelanpassad mätmetod; Machine Design; Maskinkonstruktion;

    Abstract : Minimizing pollutants are of utmost importance to ensure sustainability in transportation. Particle emissions from internal combustion engines are especially harmful to human health, while also contributing to global warming. READ MORE

  5. 3. Immobilizing catalysts on textiles : case of zerovalent iron and glucose oxidase enzyme

    Author : Mohammad Neaz Morshed; Vincent Nierstrasz; Frank Hollmann; Högskolan i Borås; []
    Keywords : Biocatalysts; Catalyst immobilization; Catalytic reduction; Chitosan; Dye removal; Environmental remediation; Enzyme immobilization; Glucose oxidase; Hyperbranched dendrimers; Heterogeneous catalysis; Heterogeneous bio-Fenton; Heterogeneous Fenton; Inorganic catalysts; Phenol removal; Polyester nonwoven fabric; Pathogenic bacteria removal; Plasma ecotechnology; Polyethylenimine; Textile catalyst; Textile biotechnology; Textile surface modification; Wastewater treatment; Zerovalent iron; 生物催化剂; 涤纶无纺布; 金属颗粒：铁固定化; 超支化树状大分子; 聚酰胺胺树状大分子 3-氨基丙基）; 三乙氧基硅烷; 1-硫代甘油; 聚乙烯胺; 壳聚糖; 葡萄糖氧化酶; 氧化还原酶; 酶固定化，物理吸附; 纤维催化剂; 多相催化; 抗菌纺织品; 革兰氏阳性（G ve）菌 革兰氏阴性（G-ve）菌; 类芬顿; 生物芬顿; 染料去除; 苯酚去除; 生物催化; 产业纺织品; 纺织生物技术; 纺织品表面改性; 环境治理; 废水处理; 零价铁。; Biocatalyseurs; Immobilisation de catalyseurs; Reduction de catalyseurs; Chitosane; Élimination de colorants; Assainissement de l’environnement; Immobilisation d’enzymes; Glucose oxydase; Dendrimères hyper-ramifiés; Catalyse hétérogène; Bio-Fenton hétérogène; Fenton hétérogène; Catalyseurs inorganiques; Élimination de phénols; Non-tissé Polyester; Élimination de bactéries pathogènes; Écotechnologie plasma; Polyéthylèneimine; Catalyseur textile; Biotechnologie textile; Modification de surface textile; Traitement des eaux usées; Fer zéro-valent; Biokatalysatorer; Katalysatorimmobilisering; Katalytisk reduktion; Kitosan; Avlägsnande av färgämnen; Miljösanering; Enzymimmobilisering; Glukosoxidas; Hypergrenade dendrimerer; Heterogen katalys; Heterogen bio-Fenton; Heterogen Fenton; Oorganiska katalysatorer; Fenolavlägsnande; Polyester fiberduk; Avlägsnande av patogena bakterier; Plasmaekoteknik; Polyetylenimin; Textil katalysator; Textil bioteknik; Modifiering av textilytor; Avloppsrening; Zerovalent järn; Textil och mode generell ; Textiles and Fashion General ;

    Abstract : Catalytic systems are one of the most effective technologies of modern chemical processes. The system uses a molecule called ‘catalyst’ that is capable of catalyzing a reaction without being produced or consumed during the process. READ MORE

  6. 4. Dissolved Air Flotation and Microscreening for Particle Separation in Wastewater Treatment

    Author : Michael Cimbritz; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; disc filtration; microscreening; DAF; wastewater treatment; particle separation; Chemical technology and engineering; particle size analysis; drum filtration;

    Abstract : Particle separation is one of the fundamental processes in wastewater treatment and a good understanding of the basic separation mechanisms ? sedimentation, flotation and filtration ? is critical in the design of wastewater treatment systems. Upgrading of treatment plants for enhanced primary treatment and effluent polishing are current examples of applications where effective, high-rate separation methods are of interest. READ MORE

  7. 5. Particle Emissions from District Heating Units Operating on Solid Biofuels

    Author : Aneta Wierzbicka; Ergonomi och aerosolteknologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; district heating; particle emissions; biomass combustion;

    Abstract : With the increasing interest in the use of biofuels for heat and energy generation there is a growing concern about emissions from their combustion. It has been shown that biofuel furnaces emit relatively high quantities of particulate matter in comparison to natural gas and light fuel oil furnaces. READ MORE