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Showing result 1 - 5 of 19 swedish dissertations matching the above criteria.

2. 1. Lighting Control Systems for Energy Saving and User Acceptance: State-of-the-art and future directions

   Author : Niko Gentile; Institutionen för arkitektur och byggd miljö; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Indoor lighting; lighting control system; lighting control; energy saving; energy efficiency; user acceptance; human factor; occupancy strategies; absence sensor; presence sensor; lighting switch; manual switch; daylight harvesting system; daylight-linked system; photoelectric dimming; photosensor.;

   Abstract : Lighting accounts for one-fifth of global electricity use. In Sweden, energy demand for lighting corresponds to 20% of the total electricity use in office buildings. Lighting retrofit measures are considered to be among the most cost-efficient way to reduce energy use in buildings. READ MORE

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

   Author : Niko Gentile; Institutionen för arkitektur och byggd miljö; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 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;

   Abstract : 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. READ MORE

5. 3. Lighting, Mood, and Seasonal Fatigue in Northern Argentina. Comparison to Countries Close to and Further from the Equator

   Author : Graciela Tonello; Institutionen för arkitektur och byggd miljö; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; temperature.; seasonal affective disorder; sadness; personality; mood; light; latitude; indoor lighting; chronobiology; circadian rhythms; pollution control; Miljöteknik; kontroll av utsläpp; Psychology; Psykologi;

   Abstract : The main problems in this thesis concern the impact of seasonal variations in daylight and ambient temperature on people's mood and the prevalence of various symptoms related to seasonal affective disorder. Questions are also raised about the role of the indoor environment and of the individual's personality as moderators of such an impact. READ MORE

6. 4. Year-round production of forest seedlings under LED lamps : Biological and energetic implications of indoor cultivation

   Author : Marco Hernandez Velasco; Uwe Zimmermann; Anders Mattsson; Frank Fiedler; Johanna Riikonen; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Picea abies; Pinus sylvestris; year-round cultivation; forest seedlings; LED lamps; light quality; light quantity; daily light integral; adaptive lighting control; greenhouse integrated photovoltaics; agrivoltaics; seedling growth performance; short-day treatments; cold hardiness; light shock stress; Engineering Science; Teknisk fysik;

   Abstract : Year-round cultivation of forest seedlings under light emitting diodes (LED) is a technology receiving increased attention from nurseries in the boreal forest regions. In these areas, the climate is characterized by strong seasonal fluctuations, resulting in short vegetation periods with narrow time windows for seedling transplanting and outdoor growth. READ MORE

7. 5. Light, Comfort and Joy : User experience of light and darkness in Swedish homes

   Author : Kiran Maini Gerhardsson; Institutionen för arkitektur och byggd miljö; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Residential; Lighting; Window openings; User experience; Technology acceptance; Mixed methods; Boende; Belysning; Fönsteröppningar; Användarupplevelse; Teknikacceptans; Kombinerad metod;

   Abstract : The thesis examines user experience and behaviour relating to lighting, luminaires and window openings during day and night, in Swedish homes. Applying a mixed methods strategy of inquiry, both quantitative and qualitative data were collected in the field and in a full-scale model of an apartment. READ MORE