Sökning: "Ceiling temperature"

Visar resultat 1 - 5 av 39 uppsatser innehållade orden Ceiling temperature.

1. 1. Ventilation for reduced indoor spread of Covid 19 and similar diseases : A literature review focusing on hospital environments

   Master-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

   Författare :Cyrus Ourak Pour; [2023]
   Nyckelord :COVID-19; SARS-CoV-2; Ventilation system; Mixing ventilation MV ; Displacement ventilation DV ; Under floor air distribution UFAD ; Ultraviolet light UV ; HEPA filter; COVID-19; SARS-CoV-2; Ventilationssystem; Blandningsventilation; Deplacementventilation; Luftfördelning under golv; Ultraviolett ljus; HEPA-filter;

   Sammanfattning : Today, a significant portion of individuals’ time is spent indoors, estimated at approximately 90% of their total time. This raises concerns about the transmission of Coronavirus Disease 2019 (COVID-19) instigating Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and similar viruses and highlights the critical role of ventilation systems in indoor environments, which this study aims to investigate. LÄS MER

3. 2. Investigation of different ventilation profiles to avoid stratification in Nearly Zero Energy Buildings

   Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

   Författare :Alazne Irene Varela Santana; [2023]
   Nyckelord :stratification; water model; comfort; mixing; temperature; potential energy; net zero energy building;

   Sammanfattning : This research paper examines possible solutions for the problems that warm air heating is suffering in Nearly Zero Energy Buildings. These NZEBs are passive houses constructed to have high energy efficiency where the quantity of power used is equal to the power created annually, produced locally or in the surroundings by renewable energy sources. LÄS MER

4. 3. Light as a biophilic medium: Workspaces with no view to nature

   Magister-uppsats, KTH/Ljusdesign

   Författare :Elena Mokeeva Hansson; [2023]
   Nyckelord :Lighting design; office lighting; daylight; visual ergonomics; well-being;

   Sammanfattning : A substantial part of our lives is spent in offices where lighting is affecting our well-being and health, even if we are not aware of that. Offices are most commonly illuminated by high intensity ceiling lights or suspended linear luminaries which emit uniform light over our heads and cause glare. LÄS MER

5. 4. CFD Study of An Office Room Equipped with Corner Impinging Jet Ventilation

   Master-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

   Författare :Getiye Wodaje; [2022]
   Nyckelord :CFD in ventilaion; Thermal comfort; Impinging jet ventilation; thermally stratified flow; Corner impinging jet; Office air quality; Indoor environment; turbulent jet;

   Sammanfattning : A CFD validation study was made using corner supplied impinging jet ventilation operating in cooling mode. The air distribution system has two equilateral triangle shaped inlets placed 80cm above the floor at the two that share a common wall. The supply air was introduced at 2.26m/s. LÄS MER

7. 5. Ventilation systems in Low Energy Houses: augmentation of mixing in a small-scale water model by generating resonance

   Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

   Författare :Borja Chocarro de Erauso; [2022]
   Nyckelord :Stratification; buoyancy frequency; resonance; mixing; passive house; water model;

   Sammanfattning : Some passive houses are provided a warm supply flow inlet coming from a mechanical ventilation system, creating issues of shortcut ventilation as a result of an originated density layer stratification, since the supplied warm air is confined to the ceiling level. In this way, there exist several complaints of thermal discomfort and poor indoor environmental quality in passive houses. LÄS MER