Sökning: "room air distribution"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden room air distribution.

  1. 1. Investigations of Flow Patterns in Ventilated Rooms Using Particle Image Velocimetry : Applications in a Scaled Room with Rapidly Varying Inflow and over a Wall-Mounted Radiator

    Författare :Amir Sattari; Ivo Martinac; Mats Sandberg; Dirk Müller; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle Image Velocimetry PIV ; experimental study; structured light 3D scanning system; ventilation; varying flow rate; room model; wall-mounted radiator; air; water; flow; Particle Image Velocimetry PIV ; experimentell studie; scanningsystem för strukturerat 3D-ljus; ventilation; varierande tilluftsflöde; rumsmodell; väggmonterad radiator; Teknisk mekanik; Engineering Mechanics; Civil and Architectural Engineering; Byggvetenskap; Energiteknik; Energy Technology;

    Sammanfattning : This thesis introduces and describes a new experimental setup for examining the effects of pulsating inflow to a ventilated enclosure. The study aimed to test the hypothesis that a pulsating inflow has potential to improve ventilation quality by reducing the stagnation zones through enhanced mixing. LÄS MER

  2. 2. Practical Safety Ventilation in Ultraclean Air Operating Rooms

    Författare :Pedro Gandra; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; airborne bacteria-carrying particles; microbial source strength; surgical clothing system; room air distribution system; Keywords: Ultraclean operating room;

    Sammanfattning : PRACTICAL SAFETY VENTILATION IN   ULTRACLEAN AIR OPERATING ROOMS When planning new ultraclean air operating rooms, often the first question is which is the preferred room air distribution system and what system is the best to meet the requirements of microbiological air cleanliness. Today, in Sweden, the requirement is a target level of 5 CFU/m3during the design phase, in order to ensure that the level of ≤10 CFU/m3during infection prone surgery is maintained. LÄS MER

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

    Författare :Sasan Sadrizadeh; Sture Holmberg; Christian Poelma; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; HUMANITIES; HUMANIORA; 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; Teknisk mekanik; Engineering Mechanics;

    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

  4. 4. Air jets in ventilation applications

    Författare :Yue Zou; KTH; []
    Nyckelord :Air jet; velocity; ventilation; CFD; measurement;

    Sammanfattning : The purpose of air distribution systems for HVAC is tocreate proper air quality and thermal conditions in an occupiedzone. In mixing type air distribution systems air is suppliedinto a room through various types of outlets and distributed byturbulent air jets. These air jets are the primary factorsaffecting room air motion. LÄS MER

  5. 5. Air pollution in Nairobi slums : sources, levels and lay perceptions

    Författare :Kanyiva Muindi; Nawi Ng; Joacim Rocklöv; Elizabeth Kimani-Murage; Marie Thynell; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Air pollution; perceptions; slums; health impacts; Nairobi; Epidemiology; epidemiologi; folkhälsa; Public health;

    Sammanfattning : BackgroundAir quality in Africa has remained a relatively under-researched field. Most of the African population is dependent on biomass for cooking and heating, with most of the combustion happening in low efficiency stoves in unvented kitchens. LÄS MER