Search for dissertations about: "ventilation system design"

Showing result 6 - 10 of 53 swedish dissertations containing the words ventilation system design.

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

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

    Abstract : 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. READ MORE

  4. 7. Ventilation of a Model Hydro-Generator, An Experimental and Numerical Study

    Author : Hamed Jamshidi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; Ventilation; Hydro Power Generator; Experiment;

    Abstract : Generators are sophisticated machines used to convert the mechanical energy of a prime mover into electrical energy. Electromagnetic and mechanical losses accompany this energy conversion process. Cooling systems remove the heat, generated by losses, from these machines. READ MORE

  5. 8. Optimization of confluent jets ventilation with variable airflow

    Author : Harald Andersson; Mathias Cehlin; Roland Gårdhagen; Högskolan i Gävle; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Computational fluid dynamics CFD ; Variable air volume.; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Computational fluid dynamics CFD ; variabelflödessystem; Hållbar stadsutveckling; Sustainable Urban Development;

    Abstract : In recent years, applications of confluent jets for design of ventilation supply devices have been widely studied. Similarly, numerous studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. READ MORE

  6. 9. Design of Energy Efficient Buildings. Applied on HVAC Systems in Commercial Buildings

    Author : Lennart Jagemar; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; design; simulations; economic analysis; energy efficiency; commercial;

    Abstract : A methodology for planning and design of energy efficient buildings is presented and analysed. The starting point is the definition that energy efficiency is a question of minimizing the energy end-use within realistic economic frames and fully preserved function. The methodology is based on a systematic approach to the issue of energy efficiency. READ MORE

  7. 10. Passive Houses in Sweden. From Design to Evaluation of Four Demonstration Projects

    Author : Ulla Janson; Avdelningen för Energi och byggnadsdesign; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Planning process; Energy efficiency; Passive house; Buildingconstruction; Residential buildings; Ventilation;

    Abstract : The use of energy is a major global issue both according to climate changes but also in the aspect of national safety tied to the trade with energy sources. Of the total energy use in the member states of the European Union, about 40% is used in residential and commercial buildings. READ MORE