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Baumann, Torsten and Zunft, Stefan (2012) Moving Bed Heat Exchanger for Solar Central Receiver Power Plants: A multi-phase model and parameter variations. SolarPACES2012, 11.-14. Sept., Marrakech.
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Abstract
Sensible solid media storage based on particulate materials is a promising concept for solar central receiver systems. The bulk material can be used as heat transfer and storage medium at high temperatures. A new heat exchanger concept based on the principles of a moving bed has been developed deploying a compact design, a good part-load behaviour and low parasitic loads. Numerical investigations applying a multiphase CFD approach are conducted in order to identify the determining factors on heat transfer. In a subsequent design study, the tube shape as well as the tube arrangement is varied in order to identify a design improving the thermal performance of the device. A circular tube geometry is found to be the most economic one compared to rhombs or ovals. A narrow tube arrangement taking into account the flow properties of the bulk offers a potentially higher thermal efficiency and an even more compact design of the heat exchanger.
| Item URL in elib: | https://elib.dlr.de/77035/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | |||||||||
| Title: | Moving Bed Heat Exchanger for Solar Central Receiver Power Plants: A multi-phase model and parameter variations | |||||||||
| Authors: |
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| Date: | 2012 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Keywords: | Moving Bed, Heat Exchanger, multiphase flow, CFD, CSP, TES | |||||||||
| Event Title: | SolarPACES2012 | |||||||||
| Event Location: | Marrakech | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 11.-14. Sept. | |||||||||
| HGF - Research field: | Energy | |||||||||
| HGF - Program: | Efficient Energy Conversion (old) | |||||||||
| HGF - Program Themes: | E EV - Energy process technology (old) | |||||||||
| DLR - Research area: | Energy | |||||||||
| DLR - Program: | E EV - Energy process technology | |||||||||
| DLR - Research theme (Project): | E - Thermochemische Prozesse (old) | |||||||||
| Location: | Stuttgart | |||||||||
| Institutes and Institutions: | Institute of Engineering Thermodynamics > Thermal Process Technology | |||||||||
| Deposited By: | Baumann, Dr.Ing. Torsten | |||||||||
| Deposited On: | 18 Dec 2012 17:56 | |||||||||
| Last Modified: | 15 Jan 2013 14:18 |
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