Sökning: "down scaling"

Visar resultat 1 - 5 av 85 avhandlingar innehållade orden down scaling.

1. 1. Sodium Salt Scaling in Black Liquor Evaporators

   Författare :Mathias Gourdon; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sodium carbonate; black liquor; falling film evaporation; fouling; scaling; heat transfer; sodium sulfate;

   Sammanfattning : Sodium salt scaling has long been recognized as a problem in the recovery cycle of kraft pulp mills, especially in black liquor evaporators. In the black liquor evaporation, as the black liquor becomes more concentrated, the sodium salts, particularly sodium carbonate and sodium sulfate, will saturate and precipitate from the solution. LÄS MER

3. 2. Black Liquor Scaling Propensity - Experimental Investigation in a Pilot Evaporator

   Författare :Mathias Gourdon; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sodium carbonate; fouling; sodium sulphate; black liquor; incrustation; scaling; evaporation; falling film; evaporator; encrustation; kraft black liquor;

   Sammanfattning : Scaling in the recovery cycle of kraft pulp mills has long been recognised as a problem, especially in black liquor evaporators. Most problems are connected with the precipitation of sodium salts. LÄS MER

4. 3. Fire behaviour of upholstered furniture component materials at multiple scales

   Författare :Konrad Wilkens Flecknoe-Brown; Avdelningen för Brandteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fire; upholstered furniture; Polyurethane; Scaling; Experimental; Modeling; fabric;

   Sammanfattning : In this research, both experimental test methods and computer models were used to characterise the thermal decomposition processes of selected upholstered furniture component materials, namely; flexible polyurethane foam and a range of different fabric coverings. This was first done at some of the smallest, simplest levels available, and how these materials were tested and the methods chosen to investigate them, was examined. LÄS MER

5. 4. Solids flows in circulating fluidized beds: explorations of phenomena with applications to boilers

   Författare :Tove Djerf; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solids flow; fluidization; scaling; circulating fluidized bed boiler; fluid dynamics;

   Sammanfattning : The circulating fluidized bed (CFB), which is a technology that is commonly used in the heat and power sector, efficiently converts renewable and/or and low-grade solid fuels, such as biomass and biogenic waste fractions. CFB units serve also as a technological platform for carbon capture processes (combustion by oxy-firing or chemical looping), which are foreseen to play a key role in the transition of the energy system towards decreased atmospheric CO2 emissions. LÄS MER

7. 5. Bioelectronic Nanosensor Devices for Environmental and Biomedical Analysis

   Författare :Klas Risveden; Tillämpad biokemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Regional Ion Sensitive Field Effect Transistor; Region Ion Sensitive Field Effect Transistor; RISFET; Conducting channel; Bioelectronic Nanosensor; Bioelectronic; Biosensor; Nanosensor; Chemical Sensor; Sensor; Semiconductor sensor; Single molecule trapping; Scaling; Protein trapping; Nanoelectronics; Lab-on-a-chip; pico-ammeter; Nanobiosensor; Sample Applicator; Sequential Batch Analysis; Sequential Batch Analysis System; SBAS; Nanowire; Branched nanowire structure; Nanotree; Nanorod; Nano processing; Micro processing; Electron Beam Lithography; EBL; UV-lithography; Molecular Imprinting; DUV-lithography; Moleculary Imprinted Polymers; MIP; Biomimetics; QCM; Biomimetic sensor; Quartz Crystal Microbalance; QCM-D; Nanoparticles; Acetylcholine esterase; Glucose oxidase; Glucose; Gluconolactone; Propranolol; Gluconate; Carbofuran; Neurotoxic; Environmental analysis; Biomedical Analysis; Biotechnology; Medicine; Pesticide; Food Technology; Analyis; Flow Injection Analysis; FIA; Scanning Probe Microscopy; Scanning Kelvin Probe Microscopy; SPM; KPM; AFM; SKM; KPFM; SKPM; Nanostructures.; Atomic Force Microscopy; KFM;

   Sammanfattning : A new type of Bioelectronic Nanosensor Device with potential applications in medicine,biotechnology and environmental analysis was designed. The nanosensor is based on RISFET (Regional Ion Sensitive Field Effect Transistor) technology. LÄS MER