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Tubular Si-infiltrated SiCf/SiC composites for solar receiver application - Part 2: Thermal performance analysis and prediction

Ortona, Alberto and Yoon, D.H. and Fend, Thomas and Feckler, Gereon and Smirnova, Olena (2015) Tubular Si-infiltrated SiCf/SiC composites for solar receiver application - Part 2: Thermal performance analysis and prediction. Solar Energy Materials and Solar Cells. Elsevier. ISSN 0927-0248

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Abstract

Tubular Si-infiltrated SiCf/SiC composites composed of an inner cellular ceramic and an outer dense Ceramic Matrix Composite (CMC) skin have been fabricated by the electrophoretic deposition of matrix phases followed by Si-infiltration for pre-feasibility testing in solar receiver applications. The tubes have been considered to be used as high temperature receiver components for the solar operation of a gas turbine or a combined cycle with temperatures up to 1300 °C and typical pressures of more than 6 bar. The cellular structure inside the tube has been introduced for the improvement of heat transfer from the irradiated outer surface of the tube to the working fluid inside. Heat transfer and permeability characteristics of the composite samples have been determined experimentally as effective properties. These properties have been used in numerical models to predict the performance of such kind of components in gas turbine service conditions. It could be demonstrated, that the heat transfer rate in a tube with a porous in-lay could be increased to approximately four times compared to the rate of an empty tube of the same size. The results of the study give reason for further experimental testing in service environments.

Item URL in elib:https://elib.dlr.de/96311/
Document Type:Article
Title:Tubular Si-infiltrated SiCf/SiC composites for solar receiver application - Part 2: Thermal performance analysis and prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ortona, Albertoalberto.ortona (at) icimsi.chUNSPECIFIED
Yoon, D.H.dhyoon (at) ynu.ac.krUNSPECIFIED
Fend, Thomasthomas.fend (at) dlr.deUNSPECIFIED
Feckler, GereonGereon.Feckler (at) dlr.deUNSPECIFIED
Smirnova, OlenaSF; olena.smirnova (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Solar Energy Materials and Solar Cells
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:Elsevier
ISSN:0927-0248
Status:Published
Keywords:Hybrid engineered ceramics; Solar gas turbine; Heat transfer performance
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solar Process Technology (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Großanlagen und solare Materialien
Deposited By: Fend, Dr.-Ing. Thomas
Deposited On:25 May 2015 10:44
Last Modified:31 Jul 2019 19:53

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