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Development and Performance Assessment of a Moving Bed Heat Exchanger for Solar Central Receiver Power Plants

Baumann, Torsten and Zunft, Stefan (2014) Development and Performance Assessment of a Moving Bed Heat Exchanger for Solar Central Receiver Power Plants. In: 20th SOLARPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies. SolarPACES 2014, 16.09.-19.09.2014, Peking, China.

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Abstract

A concept for a moving bed heat exchanger (MBHX) for solar central receiver power plants with a particle-based storage is presented and substantiated with experimental results. The design of the tube bundle considers the rheological bulk properties and was supported by CFD simulations. The adapted MBHX and a conventional reference design were subject of a comparative performance assessment. Both the granular flow distribution as well as the thermal efficiency were examined for both designs. Due to the shorter contact time of the particles at the tube wall in the adapted tube bundle, the newly developed MBHX exhibits a better thermal performance with heat transfer coefficients up to 240 W/m²K for moderate superficial bulk velocities of 5 mm/s. Hence, this concept is considered a promising technology component option for future particle-based CSP plants.

Item URL in elib:https://elib.dlr.de/89236/
Document Type:Conference or Workshop Item (Speech)
Title:Development and Performance Assessment of a Moving Bed Heat Exchanger for Solar Central Receiver Power Plants
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Baumann, Torstentorsten.baumann (at) dlr.deUNSPECIFIED
Zunft, Stefanstefan.zunft (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:20th SOLARPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Moving Bed, Heat Exchanger, TES, CSP, PIV
Event Title:SolarPACES 2014
Event Location:Peking, China
Event Type:international Conference
Event Dates:16.09.-19.09.2014
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:27 Jul 2015 14:29
Last Modified:27 Jul 2015 14:29

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