Sökning: "room control volume"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden room control volume.

  1. 1. Measuring harm from drinking in Sweden : Self-reports from drinkers in the general population

    Författare :Klara Hradilova Selin; Robin Room; Lorraine Midanik; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Key words: AUDIT measure; validity; reliability; harm from drinking; social problems; summary measures; predictors of alcohol-related harm; general population surveys.; Sociology; Sociologi;

    Sammanfattning : There are several traditions of conceptualizing and measuring harm from drinking. Two main approaches are considered in the introduction – the psychiatric epidemiology and the social survey research traditions. LÄS MER

  2. 2. Efficiency factors for space heating system in buildings

    Författare :Christian Brembilla; Thomas Olofsson; Ronny Östin; Mohsen Soleimani-Mohseni; Bjørn Reidar Sørensen; Umeå universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Efficiency factors of space heating; hydronic panel radiator; hydronic floor heating; multilayer wall; numerical modelling; room control volume; decrement factor; time delay; heat conduction; heat convection; heat radiation; heat storage; thermal inertia; Euler solver; Newton-Raphson method; synthetic weather file; feedback and feed-forward control strategies; adaptive control; validation methodology; uncertainty bands; robustness of model predictions; thermostatic booth simulator; differential sensitivity analysis; transient model of panel radiator with multiple storage elements; active thermal mass; benchmark performance indicator; linear regression model; calibration through uncertainty bands; hybrid model of low-energy building: law driven data driven; outdoor temperature compensation heating curve; solar radiation model; finite difference method; heat equation;

    Sammanfattning : The thesis focuses on the efficiency of the space heating system. In particular, the efficiency factors measure the efficiency of thermal zone. The efficiency factors measures how the energy is used in a space heating. LÄS MER

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

    Författare :Mari-Liis Maripuu; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate control; CAV; variable supply air diffuser; ventilation; VAV; energy efficiency;

    Sammanfattning : 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. LÄS MER

  4. 4. Biodegradation of the Recalcitrant Endocrine Disruptor Nonylphenol

    Författare :Ana Soares; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biofilm bioreactors; Miljöteknik; pollution control; Environmental technology; Teknik; Technological sciences; white-rot fungi; nonylphenol ethoxylates; endocrine-disrupting activity; contaminated soil; cold-adapted organisms; kontroll av utsläpp; Biotechnology; Bioteknik; biodegradation;

    Sammanfattning : Currently, over 100 high-volume chemicals have been classified as endocrine disrupters. One of these is nonylphenol, which was used as the model compound in this study. This substance originates mainly from the degradation of non-ionic surfactants (nonylphenol ethoxylates) which are widely used in industrial and domestic applications. LÄS MER

  5. 5. Radiotherapy in prostate cancer : information, quality of life and prostate volume

    Författare :Khairul Majumder; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : Prostate cancer (PC) is the most widespread form of cancer among men in Sweden, with an annual incidence of approximately 10,000 new cases. Treatment of localized prostate cancer is controversial. Curative intended treatments for localized disease include radical prostatectomy (RP) and radiotherapy (RT). LÄS MER