Sökning: "equivalent temperature"

Visar resultat 1 - 5 av 125 avhandlingar innehållade orden equivalent temperature.

1. 1. Comfort climate evaluation with thermal manikin methods and computer simulation models

   Författare :Håkan O. Nilsson; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; equivalent temperature; subject; thermal manikin; mannequin; thermal climate assessment; heat loss; office environment; cabin climate; ventilated seat; computer model; CFD; clothing-independent; comfort zone diagram; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

   Sammanfattning : Increasing concern about energy consumption and the simultaneous need for an acceptable thermal environment makes it necessary to estimate in advance what effect different thermal factors will have on the occupants. Temperature measurements alone do not account for all climate effects on the human body and especially not for local effects of convection and radiation. LÄS MER

3. 2. Cold-Electron Bolometer with Superconductor-Insulator-Normal Metal Tunnel Junctions

   Författare :Ian Jasper Agulo; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; temperature sensitivity; cryogenfree; power sensitivity; noise equivalent power; cold-electron bolometer; SIN tunnel junctions; electron cooling;

   Sammanfattning : The Cold-Electron Bolometer (CEB) is an ultrasensitive device designed for the detection of radiation in the terahertz region of the electromagnetic spectrum. The key to its sensitivity is the electron cooling of the absorber by the superconductor-insulator-normal metal (SIN) tunnel junction. LÄS MER

4. 3. Electromagnetic Modeling with Complex Dielectrics : A Partial Element Equivalent Circuit Approach

   Författare :Andreas Hartman; Jonas Ekman; Jerker Delsing; Frank Gronwald; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Electronics; Industriell elektronik;

   Sammanfattning : Wireless communication systems have become an integral part of many complex systems in diverse areas of society, for the exchange of data in business and industrial settings. With the advent of Internet of Things (IoT) and wireless sensor network architectures, the tighter demands on interoperability between different devices are putting heavy requirements their ability to exchange data wirelessly among them reliably. LÄS MER

5. 4. Outdoor thermal comfort of residents in a warm humid climate : A study on informal settlements in Dar es Salaam, Tanzania

   Författare :Modest Maurus Baruti; Boende och bostadsutveckling; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Outdoor thermal comfort; Microclimate; Thermal perception; Urbanites; Informal settlements; Informal urban fabric; Warm humid climates; Dar es Salaam; Physiological Equivalent temperature PET ; New Standard Effective Temperature SET* ; Universal Thermal Climate Index UTCI ;

   Sammanfattning : In the informal settlements of warm humid climates, where the majority of urbanites spend most of their time outdoors, a conducive thermal environment is crucial for their social and economic well-being. The overall aim of this thesis is to increase knowledge and understanding of outdoor thermal comfort in informal settlements in the warm and humid climate of Dar es Salaam, Tanzania. LÄS MER

7. 5. Thermal Modelling of Water-Based Floor Heating Systems - supply temperature optimisation and self-regulating effects

   Författare :Henrik Karlsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low temperature heating; self-regulation; predictive control; Floor heating;

   Sammanfattning : Low temperature water-based concrete embedded floor heating systems are studied. The utilisation of low quality heat sources is facilitated by low temperature heating. Theoretical models which describe the transient thermal floor heating operation constitute the basis for the analysis. LÄS MER