Search for dissertations about: "air flow"

Showing result 6 - 10 of 583 swedish dissertations containing the words air flow.

  2. 6. Numerical Studies of Flow and AssociatedLosses in the Exhaust Port of a Diesel Engine

    Author : Yue Wang; Laszlo Fuchs; Mihai Mihaescu; Angelo Onorati; KTH; []
    Keywords : Internal Combustion Engine; Exhaust flow; Exhaust Valve; Exhaust Port; Large Eddy Simulation; Valve and Piston Motion; Total Pressure Losses; Energy Losses; Discharge coefficient; Flow Losses; Flow structures; Air Flow Bench; Engine-like Conditions; SRA - Energy; SRA - Energi;

    Abstract : In the last decades, the focus of internal combustion engine development has moved towards more efficient and less pollutant engines. In a Diesel engine, approximately 30-40% of the energy provided by combustion is lost through the exhaust gases. The exhaust gases are hot and therefore rich of energy. READ MORE

  4. 7. Heated air gaps : a possibility to dry out dampness from building constructions

    Author : Tord af Klintberg; Folke Björk; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water damage; convection; air gap; building; construction; Building engineering; Byggnadsteknik;

    Abstract : The air gap method is a modification of the common way of building indoor walls and floors. The aim of the method is to make a construction, less fragile to water damage, with air gaps where moisture can be removed with a thermally driven air flow, caused by a heating cable. The thesis includes a number of experimental studies of this method. READ MORE

  5. 8. Dissolved Air Flotation

    Author : Mia Bondelind; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; two- and three-dimensional; Dissolved Air Flotation DAF ; aggregation model; Computational Fluid Dynamics CFD ; field study; surface forces; turbulence; single and multiphase flow;

    Abstract : Dissolved Air Flotation (DAF) is a well-established treatment method for water containing low density particles. The density-driven process is operated by the injection of water saturated with air under high pressure. At the pressure reduction microscopic air bubbles are formed. READ MORE

  6. 9. Through air drying : Thermographic studies of drying rates, drying non-uniformity and infrared assisted drying

    Author : Aron Tysén; Lars Nilsson; Shri Ramaswamy; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Through air drying; TAD; Drying; Dewatering; Water removal; Infrared drying; Non-uniformity; Variability; Formation; Thermography; Tissue; Fabric; Wire; Pulp; Grammage; Chemical Engineering; Kemiteknik;

    Abstract : The removal of water is an integral part of papermaking. The drying process is responsible for a great share of the energy used in the paper machine. Premium grade tissue products are dried by through air drying. Large volumes of natural gas are burned to heat the air drawn through the paper web to achieve the drying. READ MORE

  7. 10. On Tyre Rotation Modelling and Cooling Flow Measurements

    Author : Teddy Hobeika; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; Aerodynamics; Tyres; cooling flow; air mass flow;

    Abstract : With the technological computer advancements, vehicle development is relying more and more on simulations as an alternative to testing. A similar trend follows in aerodynamic development of vehicles where Computational Fluid Dynamics(CFD) simulations are increasing in complexity and accuracy. READ MORE