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Granular flow and thermal performance of Moving Bed Heat Exchangers: Comparison of the Euler-Euler model with experimental results

Baumann, Torsten (2014) Granular flow and thermal performance of Moving Bed Heat Exchangers: Comparison of the Euler-Euler model with experimental results. 12th Multiphase Flow Conference, 25.-27. Nov. 2014, Dresden, Deutschland.

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Abstract

A moving bed heat exchanger (MBHX) is a promising technology option for efficient heat recovery from hot particles and can be used as steam generator for concentrating solar power plants with particle-based thermal energy storage. A moving bed heat exchanger is a tube bundle heat exchanger, in which a granular bulk flows downwards gravity driven while passing the heat exchanger tubes. In the tubes, a heat transfer fluid is heated up, e.g. evaporating water. For the solar specific device in focus, ceramic particles are considered as granular medium. The present contribution addresses the modeling and numerical calculation of such a device with the aim to quantify its thermal performance and to elaborate the determining factors on heat transfer. Furthermore, experimental results are presented and used for model validation.

Item URL in elib:https://elib.dlr.de/96437/
Document Type:Conference or Workshop Item (Speech)
Title:Granular flow and thermal performance of Moving Bed Heat Exchangers: Comparison of the Euler-Euler model with experimental results
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Baumann, Torstentorsten.baumann (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Moving Bed, Multiphase, CFD, Euler-Euler
Event Title:12th Multiphase Flow Conference
Event Location:Dresden, Deutschland
Event Type:international Conference
Event Dates:25.-27. Nov. 2014
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Energy-efficient Processes (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Baumann, Dr.Ing. Torsten
Deposited On:11 Jun 2015 10:35
Last Modified:31 Jul 2019 19:53

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