Search for dissertations about: "axial fan"

Showing result 1 - 5 of 11 swedish dissertations containing the words axial fan.

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

    Author : Randi Franzke; Chalmers tekniska högskola; []
    Keywords : 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;

    Abstract : 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. READ MORE

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

    Author : Michail Vourakis; Chalmers tekniska högskola; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Investigation of acoustic source characterisation and installation effects for small axial fans

    Author : Per-Olof Berglund; KTH; []
    Keywords : axial fan; airborne sound; source characterisation; transmission path analysis; in-duct. Spherical harmonics;

    Abstract : Fans are often used in equipment such as home appliances andelectronic equipment where the margin of profit is small butcustomers demands on a low noise level are high. Therefore,methods for predicting the noise emitted by an applicationincluding one or several fans are desirable in order toimprove, accelerate and reduce the cost of low-noise design. READ MORE

  6. 4. Experimental and numerical investigations of underhood flow for vehicle thermal management

    Author : Randi Franzke; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; MRF; Laser-Doppler anemometry; Underhood flow; Axial fan; Cooling flow; RBM; Vehicle thermal management; Simplified underhood environment;

    Abstract : Electrified vehicles are an essential part in reducing emissions from the transportation sector. Their development comes with a variety of new challenges. Most of them revolve around the energy efficiency of the vehicles as it directly relates to the range that can be covered with one charge. READ MORE

  7. 5. A Linearized Euler Method for Unsteady Flow in Axial-Flow Turbomachines

    Author : J. Pieter Groth; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : A linear Euler method for analysing unsteady inviscid compressible quasi three- dimensional flows in oscillating cascades is developed. It is applicable to both blade flutter and forced response problems. READ MORE