Sökning: "air change rate"
Visar resultat 41 - 45 av 79 avhandlingar innehållade orden air change rate.
41. A Study of Bubble and Inclusion Behaviors in a Liquid Steel Bath
Sammanfattning : The bubble formation processes in a water model experiment were measured by a high-speed camera. Nozzle diameters of 0.5 mm, 1 mm and 2 mm were investigated under both wetting and non-wetting conditions. LÄS MER
42. Experimental validation of dynamic component models
Sammanfattning : Proper coil function is an important issue regardingair-handling devices. Thus, proper modeling is important. Thepresent work deals with simulation of heating coil subsystems,especially validation on component level. LÄS MER
43. The Effect of HV Impulses on Partial Discharge Activity and on the Dielectric Response in Oil-impregnated Paper Insulation
Sammanfattning : This work investigates how HV impulses affect the behavior of partial discharge (PD) activity and the low voltage dielectric response of oil-impregnated paper insulation. It also investigates how the change in the PD activity is related to the degradation level of oil-impregnated paper insulation. LÄS MER
44. Material Properties of Bulk Hydrophobic Concrete in a Nordic Environment
Sammanfattning : Concrete in its unaltered form allows the mass transfer of fluids into and out of its microstructure. These fluids can contain detrimental solutes which change the chemistry of the cement paste and/or the corrosion properties of the reinforcement bars, most noticeably hydrogen carbonates (HCO3-), oxygen (O2) and chloride ions (Cl-). LÄS MER
45. Pollution, green innovation, and firms
Sammanfattning : This thesis comprises three empirical studies centred around the theme of cleaning up production. All essays focus on the producers’ side, as their behaviour can have a significant impact not only on labour conditions and overall social welfare but also on the environment and climate change. LÄS MER