Sökning: "daylight"

Visar resultat 1 - 5 av 47 avhandlingar innehållade ordet daylight.

  1. 1. Lighting Control Systems to Save Energy in the non-Residential Sector : State-of-the-art, Field Studies, and Simulations

    Författare :Niko Gentile; Energi och ByggnadsDesign; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Indoor lighting; lighting control system; lighting control; energy sav; energy eff; user acceptan; degree of acceptance; human factor; occupancy strategy; presence strategy; absence strategy; daylight harvesting; daylight-linked; daylight; photoelectric dimming; photosensor; manual switch; functional illumination; standby;

    Sammanfattning : This thesis examines the energy-saving potential for lighting when using traditional indoor LCSs in non-residential buildings. In the study, an overarching theoretical framework is used that distinguishes between energy efficiency and energy saving, as well as between energy use for lighting and functional illumination. LÄS MER

  2. 2. Energy Savings by Using Daylight for Basic Urban Shapes : With a Case Study of Three Different Street Types

    Författare :Bengt Sundborg; Tigran Haas; Jan Ejhed; Ulf Ranhagen; Barbara Matusiak; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; daylight; energy; climate; urban design principles; urban pattern; street grid; Architecture; Arkitektur;

    Sammanfattning : During winter the sun is in short supply. But research at KTH shows that solar radiation can be facilitated while energy consumption for lighting is reduced. This provided that the buildings are appropriately designed. But, unfortunately, the sunlight is often not taken into account and the results are the opposite. LÄS MER

  3. 3. Daylight Influence on Colour Design : Empirical Study on Perceived Colour and Colour Experience Indoors

    Författare :Maud Hårleman; Jadwiga Krupinska; José Luis Caivano; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; architecture; interior colouring; spatial character; natural daylight; verbal description; colour reference box; Architecture; Arkitektur;

    Sammanfattning : It is known that one and the same interior colouring will appear different in rooms with windows facing north or facing south, but it is not known how natural daylight from these two compass points affects perceived colour and the ways in which colour is experienced. The objective is to describe the perceived colours to be expected in rooms with sunlight and diffused light, and thus develop a tool for colour design. LÄS MER

  4. 4. Cooling Demand and Daylight in Commercial Buildings The Influence of Window Design

    Författare :Hendrik Voll; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; daylight; building design; solar factor; glare.; energy need; window share; Commercial buildings; cooling demand;

    Sammanfattning : The modern design of office buildings shows a tendency to increase the window share per facade to be more impressive with grand visibility and well daylit rooms. An increased window share results in general in increased use of energy and costs for cooling, but these disadvantages can be reduced considering a more careful design. LÄS MER

  5. 5. Energy Efficient Window Systems. Effects on Energy Use and Daylight in Buildings

    Författare :Helena Bülow-Hübe; Energi och ByggnadsDesign; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; thermal transmittance; solar energy transmittance; shading device; solar protection; cooling; heating; energy demand; building; low-emittance coating; window; glazing; comfort; user aspects; operative temperature; Architecture; Building construction; Byggnadsteknik; daylight; perception; interior design; Arkitektur; inredningsarkitektur; Energy research; Energiforskning;

    Sammanfattning : This thesis deals with energy-efficient windows in Swedish buildings. Parametric studies were performed in the dynamic energy simulation tool Derob-LTH in order to study the effects of window choices on energy use and indoor climate for both residential and office buildings. LÄS MER