Sökning: "press drying"
Visar resultat 6 - 10 av 17 avhandlingar innehållade orden press drying.
6. On Heat and Paper : From Hot Pressing to Impulse Technology
Sammanfattning : Impulse technology is a process in which water is removedfrom a wet paper web by the combined action of mechanicalpressure and intense heat. This results in increased dewateringrates, increased smoothness on the roll side of the sheet, andincreased density. LÄS MER
7. Energy and Resource Efficiency in Convective Drying Systems in the Process Industry
Sammanfattning : Growing concern about environmental problems has increased the public’s interest in energy usage. The subsidies for biomass, together with the rising energy prices have madebiomass a desirable product on the energy market. LÄS MER
8. Static and Dynamic Modelling of the Drying Section of a Paper Machine
Sammanfattning : The paper making process involves chopping of wood, cooking and forming, followed by dewatering in a vacuum section, press section and drying section. Several models for the most important parts of the paper machine drying section are presented in this thesis to describe phenomena at steady state and during state transitions. LÄS MER
9. Waste-integrated biorefineries : A path towards efficient utilization of waste
Sammanfattning : Waste-management systems have progressed from landfilling and dumping to waste prevention, recycling and resource recovery. In state-of-the-art waste-management industries, waste is separated into various fractions and treated with suitable processes. LÄS MER
10. Regional Energy Systems with Retrofitted Combined Heat and Power (CHP) Plants
Sammanfattning : Fossil fuel depletion, economic development, urban expansion and climate change present tough challenges to municipal- and regional-scale energy systems. Regional energy system planning, including waste treatment, renewable energy supply, energy efficiency, and climate change, are considered essential to meet these challenges and move toward a sustainable society. LÄS MER