Sökning: "Clear Sky"

Visar resultat 1 - 5 av 33 uppsatser innehållade orden Clear Sky.

  1. 1. Influence of Varying Electric Light Distribution on Melanopic Equivalent Daylight Illuminance and Lighting Energy Use

    Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö; Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Författare :Rebecka Ståhl; Parvathy Biju; [2023]
    Nyckelord :Alertness; Circadian Entrainment; Clear Sky; Correlated Colour Temperature; Daylighting; Direct Electric Lighting; Direct-Indirect Electric Lighting; Energy-Efficiency; Grasshopper; Integrative Lighting; LARK 2.0; Melanopic Equivalent Daylight Illuminance; Overcast Sky; Photopic Illuminance; Spectral Power Distribution.; Technology and Engineering;

    Sammanfattning : Human beings in modern society spend more than 90% of their time indoors to live, work, and socialize. To improve health, quality of life and task performance, integrative lighting is designed to give the right light at the right time at the eye to stimulate circadian entrainment. LÄS MER

  3. 2. The chemical evolution of the Milky Way: pushing APOGEE to higher precision and accuracy

    Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Erik Fridén; [2023]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : In the recent decade, a rapid increase in all-sky spectroscopic surveys has occurred, and with it, the wealth of observational data and information on our Galaxy. Consequently, numerous detections of new structures, such as new open clusters, accreted and in-situ components, are discovered. LÄS MER

  4. 3. Hur kommuner arbetar med ljusföroreningar

    Kandidat-uppsats, Jönköping University/JTH, Byggnadsteknik och belysningsvetenskap

    Författare :Filip Hedberg; Alexander Nyberg; [2023]
    Nyckelord :Lightpollution; Ljusförorening; Ljusdesign; Himlaglim; Belysning;

    Sammanfattning : Ljusföroreningar är ett problem som uppstår överallt där artificiell belysning finns men främst i städer. Ljusföroreningar kan kort beskrivas som det olämpliga användandet av ljus samt de oönskade konsekvenserna av belysning. Idag lever 99 procent av Europas befolkning under en ljusförorenad himmel. LÄS MER

  5. 4. Evaluation of a Minute Synthesis Irradiation Model for the Frequency Containment Reserve : Disturbance down-regulation market

    Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Pablo Omar Luz Pedemonte; [2022]
    Nyckelord :Solar Energy; Photovoltaic; Irradiance variability; Synthetic solar irradiance; Ancillary services; Frequency regulation; Balancing market;

    Sammanfattning : With the increase in energy demand, and therefore, in energy generation, new high voltage direct current export links and overseas connections of large amounts of power are being introduced. These new links are subject to possible malfunction or failures, which may causea substantial frequency increase in the power system. LÄS MER

  7. 5. Simulation Tool for Design of Multiple Photovoltaic Systems : Estimation of System Sizes, Grid Interaction, and Area Requirements

    Kandidat-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Maria Björklund; [2021]
    Nyckelord :Photovoltaic system; simulation; design; system size; orientation; tilt; azimuth; grid interaction; roof-installation;

    Sammanfattning : Photovoltaic solar power is an increasing source of energy and part of the renewable energy generation which is needed in the near future to achieve the set climate goals. When planning new photovoltaic installations, parameters which affect the design are both local conditions (e.g. weather) and system parameters such as tilt and azimuth angles. LÄS MER