Sökning: "Axial"

Visar resultat 1 - 5 av 451 avhandlingar innehållade ordet Axial.

  1. 1. A mechanical model of an axial piston machine

    Författare :Rasmus Löfstrand Grip; Ulf Sellgren; Niclas Strömberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multi-body mechanical model; axial piston; Z-shaft; wobble plate; Sophia; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : A mechanical model of an axial piston-type machine with a so-called wobble plate and Z-shaft mechanism is presented. The overall aim is to design and construct an oil-free piston expander demonstrator as a first step to realizing an advanced and compact small-scale steam engine system. LÄS MER

  3. 2. CFD modelling of axial fans for thermal management applications

    Författare :Randi Franzke; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MRF; CFD; RBM; Axial Fan; Thermal Management;

    Sammanfattning : Reducing CO2 emissions is one of the key challenges in todays automotive industry. Different strategies to achieve this goal are, for example, to electrify the powertrain and to reduce the aerodynamic drag by reducing the amount of cooling air through the underhood. LÄS MER

  4. 3. Experimental Studies on the Aeroacoustics of Low-Speed Axial Fans

    Författare :Michail Vourakis; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-speed axial fans; electric fans; experimental; laser Doppler anemometry; low-pressure axial fans; cooling fan; aeroacoustics; rotating ring;

    Sammanfattning : Low-speed axial fans are used in thermal management systems of internal combustion and electric vehicles. These systems are compact, cost-effective, all while addressing safety concerns. On the downside, fan operation leads to flow induced noise. LÄS MER

  5. 4. Engine Optimized Turbine Design

    Författare :Nicholas Anton; Anders Christiansen-Erlandsson; Magnus Genrup; Marc Gugau; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbocharger; Heavy-duty; Turbine; Axial; Radial; Machine Design; Maskinkonstruktion;

    Sammanfattning : The focus on our environment has never been as great as it is today. The impact of global warming and emissions from combustion processes become increasingly more evident with growing concerns among the world’s inhabitants. The consequences of extreme weather events, rising sea levels, urban air quality, etc. LÄS MER

  7. 5. A minimally invasive axial blood flow pump : an experimental and clinical study

    Författare :Urban Lönn; Howard Frazier; Linköpings universitet; []
    Nyckelord :Axial blood flow pump; Hemopump; LVAD; Beating heart CABG; MEDICINE; MEDICIN;

    Sammanfattning : The first aim of this thesis was to evaluate a new minimally invasive axial blood flow pump for treatment of patients needing circulatory support after open heart surgery. This system, the Hemopump temporary cardiac assist device, is a very small catheter mounted intracorporeal pump, which is introduced transvalvularly into the left ventricle. LÄS MER