Search for dissertations about: "Vav"

Showing result 1 - 5 of 10 swedish dissertations containing the word Vav.

  2. 1. Adapting Variable Air Volume (VAV) Systems for Office Buildings without Active Control Dampers

    Author : Mari-Liis Maripuu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate control; CAV; variable supply air diffuser; ventilation; VAV; energy efficiency;

    Abstract : In commercial buildings the building services systems may account for a substantial part of the need of energy. There is, at least in Sweden, a large existing stock of 20 to 30 year old office buildings, which are supplied with centralised constant air volume flow (CAV) air conditioning systems with the primary function to keep the room temperature at an acceptable level summertime. READ MORE

  4. 2. Shb and Its Homologues: Signaling in T Lymphocytes and Fibroblasts

    Author : Cecilia Lindholm; Hamid Band; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Shb; T cell receptor; IL-2 receptor; PDGF receptor; cell signaling; adapter proteins; LAT; Vav; PLC-g1; SLP-76; JAK1; JAK3; Jurkat cells; T cells; NK cells; Apoptosis.; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Abstract : Stimulation of the T cell receptor (TCR) induces tyrosine phosphorylation of numerous intracellular proteins, leading to activation of the interleukin-2 (IL-2) gene in T lymphocytes. Shb is a ubiquitously expressed adapter protein, with the ability to associate with the T cell receptor and several signaling proteins in T cells, including: the TCR ζ-chain, LAT, PLC-γ1, Vav, SLP-76 and Gads. READ MORE

  5. 3. Air - for Health and Comfort, An Analysis of HVAC Systems' Performance in Theory and Practice

    Author : Fredrik Engdahl; Avdelningen för Byggnadsfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggnadsteknik; Building construction; indoor air quality; HVAC; infiltration; ventilation; VAV;

    Abstract : One part of the objective is to analyze how different ventilation systems perform in practice when it comes to supplying and exhausting designed air flow in different outdoor and indoor conditions. The other part is to analyze the design criterias and the energy use of a variable air volume system based on controlled static pressure at the branch duct level and supplying outdoor air only. READ MORE

  6. 4. Ventilation System Design - A Fluid Dynamical Study with Focus on Demand Control

    Author : Andreas Karlsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; variable airflows; pressure level; ventilation system design; HVAC design; variable air volume; pressure loss; VAV; demand control ventilation;

    Abstract : Ventilation corresponds to a large part of the total energy use of a building and a lot of attention has been paid to how to reduce this energy use. However, much of this work on saving energy has been focused on reduction of the airflows and how this in turn reduces the energy use. READ MORE

  7. 5. Measurements and Analyses of the Performancs of Laboratory Fume Hoods

    Author : Jan Melin; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; performance test; rapid concentration changes; VAV hood controllers; infrared gas analysers; laboratory fume hoods;

    Abstract : When working with health-hazardous substances or unpleasant airborne pollutants, it is important to have ventilation systems that are designed and operated to protect persons working in the laboratory. In laboratory applications, the fume hood is the most commonly used item of protective equipment. READ MORE