Sökning: "moisture condition"

Visar resultat 11 - 15 av 47 avhandlingar innehållade orden moisture condition.

  1. 11. Redistribution of moisture and ions in cement based materials

    Författare :Magnus Åhs; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Moisture redistribution; ion redistribution; cement based materials; hysteresis; sorption isotherm; scanning;

    Sammanfattning : There were two principal objectives for this thesis. The first was to develop a methodology and evaluation model of moisture redistribution in order to make the future relative humidity in a screeded concrete slab predictable. The second objective was to develop a method to determine the critical humidity for ion transport in concrete. LÄS MER

  3. 12. Putsens inverkan på fasadens fuktbalans

    Författare :Kenneth Sandin; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rendering; moisture; driving rain; absorption; drying; provningsmetoder; mätmetoder; kondens; slagregn; fukt; ytterväggar; puts; fasader; pore structure; surface coating; diffusion;

    Sammanfattning : The report deals with the effect of renderings on the moisture balance in facades. The main therne is the moisture mechanism in cnnnection with different moisture sources. Different opinions about moisture in facades and consequences of moisture are mentioned as a background. LÄS MER

  4. 13. Hälsopåverkan av åtgärder i fuktiga byggnader

    Författare :Annika Ekstrand-Tobin; Göran Stridh; Linköpings universitet; []
    Nyckelord :moisture; allergy; SBS; remediation; indoor environment; mites; damp damage; fukt; allergi; SBS; åtgärder; innemiljö; luftkvalitet; kvalster; fuktskador; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Fukt i svenska bostäder är vanligt och ger ibland upphov till en rad olika problem. l vissa bostäder är det önskvärt att radikalt sänka fuktproduktionen till rumsluften. Alternativt kan det vara mer motiverat att öka bostadens ventilationsgrad. LÄS MER

  5. 14. Characterization of conversion zones in a reciprocating grate furnace firing wet woody biomass

    Författare :Narges Razmjoo; Strand Michael; Chungen Yin; Linnéuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass combustion; Grate firing; Fuel bed; Moisture; Gas phase; Conversion zone; Experimental; Temperature distribution; Gas analysis; Bioenergiteknik Energi- och Miljöteknik; Bioenergy Technology;

    Sammanfattning : Grate-firing systems are a common and popular combustion technology for burning biomass. However, combustion of biomass in these furnaces may emit a large amount of pollutants in the form of CO, CH4, PAH, NOx, and particles. LÄS MER

  7. 15. Diagnosis of Moisture in Transformer Insulation - Application of frequency domain spectroscopy

    Författare :Chandima Ekanayake; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; moisture content; diagnostic methods; modelling; polarisation depolarisation currents PDC ; frequency domain spectroscopy FDS ; dielectric response measurements; Oil-impregnated pressboard paper insulation; Karl Fischer titration KFT ; conductivity; ageing;

    Sammanfattning : This thesis presents application of dielectric response measurements for identifying condition of high voltage insulation in power transformers. Results of such measurements, incorporated with different modelling techniques, allow to estimate moisture content in solid part of transformer insulation. LÄS MER