Sökning: "air supply device"

Visar resultat 6 - 10 av 14 avhandlingar innehållade orden air supply device.

1. 6. Experimental and numerical investigations of a ventilation strategy – impinging jet ventilation for an office environment

   Författare :Huijuan Chen; Bahram Moshfegh; Mathias Cehlin; Darren Robinson; Linköpings universitet; []
   Nyckelord :Impinging jet ventilation; room air distribution; thermal comfort; ventilation performance; turbulence modelling; CFD;

   Sammanfattning : A well-functioning, energy-efficient ventilation system is of vital importance to offices, not only to provide the kind of comfortable, healthy indoor environment necessary for the well-being and productive work performance of occupants, but also to reduce energy use in buildings and the associated impact of CO2 emissions on the environment. To achieve these goals impinging jet ventilation has been developed as an innovative ventilation concept. LÄS MER

3. 7. Wound ventilation : a new concept for prevention of complications in cardiac surgery

   Författare :Mikael Persson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Cardiac surgery; air embolism; airborne contamination; wound infection; desiccation; adhesion; carbon dioxide insufflation; antiseptic agent; ethanol; humidification;

   Sammanfattning : Cardiac surgery through an open chest wound is a major operation both in size and duration. The wound exposure to ambient air implies considerable risks. 1) Air may enter the heart and great vessels and embolize to the brain or cardiac muscle where it may cause dysfunction or permanent damage. LÄS MER

4. 8. On the performance of stratified ventilation

   Författare :Ulf Larsson; Bahram Moshfegh; Per Heiselberg; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : People nowadays spend most of their time indoors, for example in their homes, cars, in trains, at work, etc. In Sweden, the energy demand in the built environment is a growing issue. LÄS MER

5. 9. Demand Controlled Ventilation (DCV) Systems in Commercial Buildings. Functional Requirements on Systems and Components

   Författare :Mari-Liis Maripuu; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DCV; CO2-sensors; indoor climate control; energy efficiency; CAV; mixedgas;

   Sammanfattning : Demand controlled ventilation (DCV) is considered as an energy efficient solution forair-based cooling and indoor air quality control. Considerable energy savings can beachieved when the airflow rate is continuously adapted to the actual load condition. LÄS MER

7. 10. High Temperature Bipolar SiC Power Integrated Circuits

   Författare :Saleh Kargarrazi; Carl-Mikael Zetterling; Ana Rusu; Shankar Narayanan Ekkanath Madathil; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : In the recent decade, integrated electronics in wide bandgap semiconductor technologies such as Gallium Nitride (GaN) and Silicon Carbide (SiC) have been shown to be viable candidates in extreme environments (e.g high-temperature and high radiation). Such electronics have applications in down-hole drilling, automobile-, air- and space- industries. LÄS MER