Sökning: "reactor modelling"
Visar resultat 21 - 25 av 89 avhandlingar innehållade orden reactor modelling.
21. Mathematical modelling of biomass thermal degradation in a fixed bed reactor
Sammanfattning : A mathematical model of biomass thermal degradation in afixed bed has been developed. Theoretical analysis of drying,pyrolysis and char combustion has been carried out. LÄS MER
22. Numerical modelling of swirling drying flow
Sammanfattning : Waste hydrochloric acid (HCl) from the pickling process at SSAB EMEA in Borl¨ange, Sweden, is regenerated using a technique called spray roasting where waste HCl is sprayed into a hot reactor through four spray nozzles at the top of the reactor. The regeneration (drying) process is driven by four natural gas burners placed symmetrically along the periphery of the reactor and causes the water in the waste acid droplets to evaporate. LÄS MER
23. Modelling Chemical Weathering in Different Scales
Sammanfattning : Chemical weathering is one of the most important processes supporting life on Earth. Chemical weathering continuously contributes macronutrients and micronutrients to the soil solution. These recycling, essential elements are used as building blocks for all organic living matter. LÄS MER
24. Modelling of Biomass Combustion in Furnaces
Sammanfattning : Biomass combustion in grate fired furnaces is an important approach to convert renewable biomass fuel to heat and electricity. It is not only used in the Swedish energy industry but also by a great number of Swedish households for domestic heating. Burning biomass has the advantage of being CO2 neutral. LÄS MER
25. Multiscale Modelling of Reinforced Concrete Structures
Sammanfattning : Concrete cracks at relatively low tensile stresses; cracks open up for ingress of harmful substances, negatively affecting the durability of reinforced concrete structures. Crack widths are thus limited in the design codes, and accurate predictions are needed, especially for large reinforced concrete structures such as bridges or nuclear reactor containment buildings. LÄS MER