Sökning: "radiator model"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden radiator model.

  1. 1. Investigations of Flow Patterns in Ventilated Rooms Using Particle Image Velocimetry Applications in a Scaled Room with Rapidly Varying Inflow and over a Wall-Mounted Radiator

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Amir Sattari; Högskolan i Gävle.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle Image Velocimetry PIV ; experimental study; structured light 3D scanning system; ventilation; varying flow rate; room model; wall-mounted radiator; air; water; flow; Particle Image Velocimetry PIV ; experimentell studie; scanningsystem för strukturerat 3D-ljus; ventilation; varierande tilluftsflöde; rumsmodell; väggmonterad radiator; Engineering Mechanics; Teknisk mekanik; Byggvetenskap; Civil and Architectural Engineering; Energy Technology; Energiteknik;

    Sammanfattning : This thesis introduces and describes a new experimental setup for examining the effects of pulsating inflow to a ventilated enclosure. The study aimed to test the hypothesis that a pulsating inflow has potential to improve ventilation quality by reducing the stagnation zones through enhanced mixing. LÄS MER

  2. 2. Investigations of Flow Patterns in Ventilated Rooms Using Particle Image Velocimetry Applications in a Scaled Room with Rapidly Varying Inflow and over a Wall-Mounted Radiator

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Amir Sattari; KTH.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle Image Velocimetry PIV ; experimental study; structured light 3D scanning system; ventilation; varying flow rate; room model; wall-mounted radiator; air; water; flow; Particle Image Velocimetry PIV ; experimentell studie; scanningsystem för strukturerat 3D-ljus; ventilation; varierande tilluftsflöde; rumsmodell; väggmonterad radiator; Teknisk mekanik; Engineering Mechanics; Civil and Architectural Engineering; Byggvetenskap; Energiteknik; Energy Technology;

    Sammanfattning : This thesis introduces and describes a new experimental setup for examining the effects of pulsating inflow to a ventilated enclosure. The study aimed to test the hypothesis that a pulsating inflow has potential to improve ventilation quality by reducing the stagnation zones through enhanced mixing. LÄS MER

  3. 3. Efficiency factors for space heating system in buildings

    Detta är en avhandling från Umeå : Umeå University

    Författare :Christian Brembilla; Umeå universitet.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Efficiency factors of space heating; hydronic panel radiator; hydronic floor heating; multilayer wall; numerical modelling; room control volume; decrement factor; time delay; heat conduction; heat convection; heat radiation; heat storage; thermal inertia; Euler solver; Newton-Raphson method; synthetic weather file; feedback and feed-forward control strategies; adaptive control; validation methodology; uncertainty bands; robustness of model predictions; thermostatic booth simulator; differential sensitivity analysis; transient model of panel radiator with multiple storage elements; active thermal mass; benchmark performance indicator; linear regression model; calibration through uncertainty bands; hybrid model of low-energy building: law driven data driven; outdoor temperature compensation heating curve; solar radiation model; finite difference method; heat equation;

    Sammanfattning : The thesis focuses on the efficiency of the space heating system. In particular, the efficiency factors measure the efficiency of thermal zone. The efficiency factors measures how the energy is used in a space heating. LÄS MER

  4. 4. Modelling and simulation of building components thermal interaction between multilayer wall and hydronic radiator

    Detta är en avhandling från Umeå : Umeå University

    Författare :Christian Brembilla; Umeå universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydronic radiator; multilayer wall; efficiencies of emission; Systems Analysis; systemanalys; Technical Physics; teknisk fysik med inriktningen mikrosystemteknik;

    Sammanfattning : Background and Scope The scope of this thesis is to investigate the thermal behaviour of building components as hydronic radiator and multilayer walls subjected to dynamic conditions. The modelling and simulation of these building components provide information on how these components thermally interact among each other. LÄS MER

  5. 5. Development of a Test Environment for Air Intake Aerodynamics of Road Vehicles

    Detta är en avhandling från Umeå : Umeå University

    Författare :Lasse Malmkjaer Christoffersen; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; radiator model.; wind tunnel; erodynamics; reynolds effects;

    Sammanfattning : In the past years work on aerodynamics of road vehicles, the focus has mainly been on shaping the exterior. Recently, however, the focus has shifted towards an optimization of details. One such detail is the air intake for the cooling system. LÄS MER