Sökning: "air-conditioning"

Visar resultat 1 - 5 av 43 avhandlingar innehållade ordet air-conditioning.

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

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

   Sammanfattning : 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. LÄS MER

3. 2. Environmental Assessment of Air-conditioning Systems in Offices. Some Aspects Related to Design

   Författare :Katarina Heikkilä; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; air-conditioning; office buildings; environmental assessment; flexibility; weighting methods; comfort cooling system; energy efficiency; environmental performance; HVAC systems; life cycle assessment;

   Sammanfattning : The primary function of an air-conditioning system, i.e. to fulfil given requirements on indoor climate in a specific building, can generally be achieved by several system designs. The systems may have varying environmental performance. LÄS MER

4. 3. Automotive Climate Systems - Investigation of Current Energy Use and Future Energy Saving Measures

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

   Sammanfattning : 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. LÄS MER

5. 4. Digital reglering av klimatprocesser

   Författare :Lars Jensen; Institutionen för reglerteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Uppvärmning; Ventilation; Reglerteknik; Datorstyrning; Digital teknik; Air conditioning; Mathematical models; Experimentation; Temperature control; Humidity control; Computer simulations; uppvärmning; ventilation; reglerteknik; digital teknik; datorstyrning;

   Sammanfattning : Results from a research project supported by the Swedish Council for Building Research are reported. The main task was to improve climate control technology. The work was focused on digital control. It was split up into three main tasks: model building, design of regulators, and fullscale experiments. LÄS MER

7. 5. Environmental Assessment of Air-conditioning Systems. Design Considerations for Swedish Conditions

   Författare :Katarina Heikkilä; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; environmental assessment; life cycle assessment LCA ; weighting;

   Sammanfattning : There is an increased awareness about global environmental changes, and a need forproducts and systems with the lowest possible impacts on the environment, withouttrade-offs on the original function or quality. The need for air-conditioning andcomfort cooling in commercial buildings has increased and an appropriate design ofthe air-conditioning system is thus important in order to reduce the environmentalimpact related to air-conditioning of buildings. LÄS MER