Sökning: "HVAC"
Visar resultat 16 - 20 av 54 avhandlingar innehållade ordet HVAC.
16. Grid connection of offshore renewable energy sources
Sammanfattning : In order to achieve net zero emissions from the electricity sector, the proportion of renewable energy sources connected to the electrical grid needs to be increased significantly in the coming years. Established renewable energy sources, such as wind power and solar power, will certainly be crucial in achieving this. LÄS MER
17. Studies of sound generation and propagation in flow ducts
Sammanfattning : This thesis contains three papers investigating problems of interest for noise control in ducts. The first part of this thesis treats the sound propagation in rectangular ducts with flexible walls. Various experimental techniques are performed to measure the internal sound propagation and radiation to the surrounding. LÄS MER
18. Environmental Assessment of Air-conditioning Systems in Offices. Some Aspects Related to Design
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
19. Ventilation System Design - A Fluid Dynamical Study with Focus on Demand Control
Sammanfattning : Ventilation corresponds to a large part of the total energy use of a building and a lot of attention has been paid to how to reduce this energy use. However, much of this work on saving energy has been focused on reduction of the airflows and how this in turn reduces the energy use. LÄS MER
20. Energy Efficiency in Shopping Malls : Some Aspects Based on a Case Study
Sammanfattning : The building sector accounts for approximately 40 percent of our energy use. To reach existing environmental targets energy use will have to be reduced in all building types. At the European level, the main legislative instrument for improving the energy efficiency of the building stock is the Energy Performance of Buildings Directive (EPBD). LÄS MER