Search for dissertations about: "hvac"

Showing result 6 - 10 of 53 swedish dissertations containing the word hvac.

  2. 6. District Cooling – Towards Improved Substation Performance

    Author : Maria Jangsten; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control strategy; heat exchanger; district cooling; HVAC; operational data; energy transfer station; substation; low delta-T; high temperature district cooling;

    Abstract : The global cooling demand in buildings is rapidly increasing and to supply this demand, district cooling is one solution. However, many district cooling systems suffer from low delta-Ts (receiving low return temperatures from the buildings connected to the system). READ MORE

  4. 7. Modelling Life Cycle Cost for Indoor Climate Systems

    Author : Dennis Johansson; Institutionen för bygg- och miljöteknologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVAC; life cycle cost; energy; Energy research; Energiforskning; Byggnadsteknik; Building construction; indoor climate system; ventilation; maintenance; LCC;

    Abstract : The indoor climate system, which serves a building with a proper indoor air quality and thermal comfort, has been predominantly designed based on the initial cost. A life cycle approach could improve both the economic and environmental performance since the energy use could decrease. READ MORE

  5. 8. Evaporative and Desiccant Cooling Techniques Feasibility When Applied to Air Conditioning

    Author : Torbjörn Lindholm; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; desiccant wheel; desiccant cooling; evaporative cooling; dehumidification; air-conditioning; HVAC; comfort;

    Abstract : This thesis describes evaporative and desiccant cooling processes for air-conditioning purposes, i.e. for the removal of surplus heat from premises by the supply of cooled ventilation air. These cooling processes can replace the conventional method of cooling ventilation air involving the use of refrigerating machinery. READ MORE

  6. 9. Automotive Climate Systems - Investigation of Current Energy Use and Future Energy Saving Measures

    Author : Filip Nielsen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation and modeling; HVAC; energy efficiency; testing; thermal management; passenger compartment; automotive; Air conditioning; energy consumption; fuel consumption;

    Abstract : Automotive climate systems use energy to achieve thermal comfort for the vehicle passengers. This energy use affects vehicle fuel consumption. The objectives of this thesis are to understand the energy use of automotive climate systems and investigate the effect of different energy saving measures.The research was conducted in several steps. READ MORE

  7. 10. Diffusion of sustainable HVAC innovations in BIM platforms

    Author : Soheila Bahrami; Avdelningen för Byggproduktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BIM library platform; Innovation; Product information; HVAC; Usability; sustainable value; standards;

    Abstract : Sustainability attributes of building ventilation products have considerable impacts on building performance aspects such as energy efficiency and indoor environmental quality. Heating, Ventilation and Air Conditioning (HVAC) manufacturers allocate resources to develop innovating ideas for improving the sustainability attributes of their products. READ MORE