Daikeler, Alexander ; Ströhle, Jochen ; Epple, Bernd (2018)
Experimental Flow Structure Analysis in a 1 MWth Circulating Fluidized Bed Pilot Plant.
In: Chemical Engineering Science
doi: 10.1016/j.ces.2018.10.037
Article, Bibliographie
Abstract
A water-cooled dual-channel capacitance probe system was developed for in-furnace measurements of solids concentration and solids velocity in a 1 MWth dual fluidized bed pilot plant. Measurements were conducted in both reactors of the pilot plant during carbonate looping and combustion test campaigns. Solids velocities were derived by cross correlating the signals of the two channels of the capacitance probe. Thus, horizontal profiles of solids concentration and velocity were simultaneously determined in the reactors. These profiles show a strong core annulus flow structure in both reactors of the pilot plant. The influence of bed material characteristics, operating conditions as well as riser geometries on the particle flow structure is evaluated.
| Item Type: | Article |
|---|---|
| Erschienen: | 2018 |
| Creators: | Daikeler, Alexander ; Ströhle, Jochen ; Epple, Bernd |
| Type of entry: | Bibliographie |
| Title: | Experimental Flow Structure Analysis in a 1 MWth Circulating Fluidized Bed Pilot Plant |
| Language: | English |
| Date: | 2018 |
| Journal or Publication Title: | Chemical Engineering Science |
| DOI: | 10.1016/j.ces.2018.10.037 |
| URL / URN: | https://doi.org/10.1016/j.ces.2018.10.037 |
| Abstract: | A water-cooled dual-channel capacitance probe system was developed for in-furnace measurements of solids concentration and solids velocity in a 1 MWth dual fluidized bed pilot plant. Measurements were conducted in both reactors of the pilot plant during carbonate looping and combustion test campaigns. Solids velocities were derived by cross correlating the signals of the two channels of the capacitance probe. Thus, horizontal profiles of solids concentration and velocity were simultaneously determined in the reactors. These profiles show a strong core annulus flow structure in both reactors of the pilot plant. The influence of bed material characteristics, operating conditions as well as riser geometries on the particle flow structure is evaluated. |
| Uncontrolled Keywords: | circulating fluidized bed, 1 MWth CFB pilot plant, solids volume concentration and velocity, capacitance probe |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST) Profile Areas Profile Areas > Thermo-Fluids & Interfaces |
| Date Deposited: | 08 Nov 2018 13:49 |
| Last Modified: | 08 Nov 2018 13:49 |
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