Sökning: "termisk komfort"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden termisk komfort.

1. 1. Experimental study of an intermittent ventilation system in high occupancy spaces

   Författare :Alan Kabanshi; Patrik Sörqvist; Hans Wigö; Robert Ljung; Hazim Awbi; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Intermittent airflow; Indoor air quality; Perceived air quality; Thermal sensation; thermal comfort; Air movement acceptability; Convective cooling; Cooling effect.; Intermittent luftflöde; Luftstrålar; Upplevd luftkvalitet; Termisk komfort; Acceptans av luftrörelser; Konvektiv kylning; Kyleffekt.; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : Spaces with high occupancy density like classrooms are challenging to ventilate and use a lot of energy to maintain comfort. Usually, a compromise is made between low energy use and good Indoor Environmental Quality (IEQ), of which poor IEQ has consequences for occupants’ health, productivity and comfort. LÄS MER

3. 2. Numerical and experimental study of confluent jets supply device with variable airflow

   Författare :Harald Andersson; Bahram Moshfegh; Mathias Cehlin; Fredrik Karlsson; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Laser Doppler Anemometry LDA ; Computational fluid dynamics CFD ; Shear stress transport SST k – ω ; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Laser-Doppler-anemometri LDA ; Computational fluid dynamics CFD ; turbulens model SST k – ω ; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : In recent years, application of confluent jets for design of ventilation supply devices has been studied. Similarly, numerus studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. LÄS MER

4. 3. Design of Hospital Operating Room Ventilation using Computational Fluid Dynamics

   Författare :Sasan Sadrizadeh; Sture Holmberg; Christian Poelma; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; Computational Fluid Dynamics CFD ; Ventilation System; Hospital Operating Room; Bacteria Carrying Particle; Surgical Site Infection; Colony Forming Unit; Airborne Particle Control; Air Quality; Thermal Comfort; Active-Passive Air Sampling methods; Computational Fluid Dynamics CFD ; ventilationssystem; operationssal på sjukhus; bakteriebärande partikel; infektion i samband med operation; kolonibildande enhet; kontroll av luftburna partiklar; luftkvalitet; termisk komfort; aktiva-passiva provtagningsmetoder för luft; Engineering Mechanics; Teknisk mekanik;

   Sammanfattning : The history of surgery is nearly as old as the human race. Control of wound infection has always been an essential part of any surgical procedure, and is still an important challenge in hospital operating rooms today. For patients undergoing surgery there is always a risk that they will develop some kind of postoperative complication. LÄS MER

5. 4. Optimization of confluent jets ventilation with variable airflow

   Författare :Harald Andersson; Mathias Cehlin; Roland Gårdhagen; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Computational fluid dynamics CFD ; Variable air volume.; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Computational fluid dynamics CFD ; variabelflödessystem; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : In recent years, applications of confluent jets for design of ventilation supply devices have been widely studied. Similarly, numerous studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. LÄS MER

7. 5. Computational fluid dynamics application in indoor air quality and health

   Författare :Parastoo Sadeghian; Sasan Sadrizadeh; Sture Holmberg; Ann Tammelin; Olof Sköldenberg; Catherine Noakes; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ventilation systems; Indoor air quality IAQ ; Bacteria-carrying particles BCP ; Infectious respiratory disease; Operating room OR ; Thermal comfort; Computational fluid dynamics CFD ; ventilationssystem; bakteriebärande partiklar; infektionssjukdomar i luftvägarna; operationsrum; termisk komfort; numerisk strömningsmekanik; Strömnings- och klimatteori; Fluid and Climate Theory;

   Sammanfattning : Indoor air quality directly affects the comfort, performance, and well-being of occupants. Indoor pollution can cause immediate or long-term health effects and has been responsible for 4.1% of global deaths in recent decades. LÄS MER