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Development of advanced high porosity wicks for the high temperature heat pipes of concentrating solar power

Khairnasov, Sergii and Andraka, Charles and Baturkin, Volodymyr and Zaripov, Vladlen and Nishchyk, Oleksandr (2016) Development of advanced high porosity wicks for the high temperature heat pipes of concentrating solar power. In: Preprints: Joint 18th International Heat Pipe Conference and 12th International Heat Pipe Symposium (140181), pp. 58-65. The Korean Society of Mechanical Engineers. Joint 18th International Heat Pipe Conference and 12th International Heat Pipe Symposium, 12-16 Juny 2016, Jeju, Korea. DOI: 10.1016/j.applthermaleng.2017.02.109 ISSN 13594311

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Official URL: http://www.heatpipe.or.kr

Abstract

Sandia National Laboratories and Heat Pipes Laboratory of National Technical University of Ukraine «KPI» developed several methods of improving robustness of the high-temperature heat pipe wick for their application to concentrating solar power (CSP) systems with stirling engine. In this case the wick structures must retain high heat pipe performance with robustness for long term operation. Recent modeling indicates that wicks based on various fiber combinations could provide the robustness combined with sufficient performance. Results of the development, characterization, modeling, and testing of an advanced felt metal wicks that addresses durability issues while maintaining sufficient performance are showed in the paper. The project resulted in an ongoing durability bench-scale heat pipe that simulates wick load conditions required for an 80kWth throughput solar receiver, including periodic non-destructive evaluation of the wick durability. Two mock-ups of high-temperature heat pipes were made for long life and performance tests: the first sample with wick based on 12 μm felt; and second with hybrid wick based on 30 μm felt and 6.5 μm felt. Second heat pipe operation has continued unattended at 775°C vapor temperature for nearly 11,700 hours, with no observable loss of performance or change in startup characteristics.

Item URL in elib:https://elib.dlr.de/106272/
Document Type:Conference or Workshop Item (Speech)
Title:Development of advanced high porosity wicks for the high temperature heat pipes of concentrating solar power
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Khairnasov, SergiiNTUU KPI, Kyiv, UkraineUNSPECIFIED
Andraka, CharlesSandia National Laboratories, USAUNSPECIFIED
Baturkin, Volodymyrvolodymyr.baturkin (at) dlr.deUNSPECIFIED
Zaripov, VladlenNTUU KPI, Kyiv, UkraineUNSPECIFIED
Nishchyk, OleksandrNTUU KPI, Kyiv, UkraineUNSPECIFIED
Date:March 2016
Journal or Publication Title:Preprints: Joint 18th International Heat Pipe Conference and 12th International Heat Pipe Symposium
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1016/j.applthermaleng.2017.02.109
Page Range:pp. 58-65
Publisher:The Korean Society of Mechanical Engineers
ISSN:13594311
Status:Published
Keywords:felt metal wick, high-temperature heat pipe, Stirling engine, concentrating solar power
Event Title:Joint 18th International Heat Pipe Conference and 12th International Heat Pipe Symposium
Event Location:Jeju, Korea
Event Type:international Conference
Event Dates:12-16 Juny 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Mascot Bus (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Baturkin, Volodymyr
Deposited On:28 Sep 2016 13:05
Last Modified:31 Jul 2019 20:03

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