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High Performance Felt-Metal-Wick Heat Pipe for Solar Receivers

Andraka, Charles and Moss, Timothy and Baturkin, Volodymyr and Zaripov, Vladlen and Nishchyk, Oleksandr (2016) High Performance Felt-Metal-Wick Heat Pipe for Solar Receivers. In: AIP Conference Proceedings. SolarPACES 2015. Concentrating Solar Power and Chemical Energy Systems, 13.-16.Okt. 2015, Cape Town, South Africa. DOI: 10.1063/1.4949054 ISBN 978-073541386-3 ISSN 0094243X

Full text not available from this repository.

Official URL: http://www.solarpaces2015.solarpaces.org/proceedings.html

Abstract

Sodium heat pipes have been identified as a potentially effective heat transport approach for CSP systems that require near-isothermal input to power cycles or storage, such as dish Stirling and highly recuperated reheat-cycle supercritical CO2 turbines. Heat pipes offer high heat flux capabilities, leading to small receivers, as well as low exergetic losses through isothermal coupling with the engine. Sandia developed a felt metal wick approach in the 1990’s, and demonstrated very high performance 1. However, multiple durability issues arose, primarily the structural collapse of the wick at temperature over short time periods. NTUU developed several methods of improving robustness of the wick 2, but the resulting wick had limited performance capabilities. For application to CSP systems, the wick structures must retain high heat pipe performance with robustness for long term operation. In this paper we present our findings in developing an optimal balance between performance and ruggedness, including operation of a laboratory-scale heat pipe for over 10000 hours so far. Application of heat pipes to dish-Stirling systems has been shown to increase performance as much as 20% 3, and application to supercritical CO2 systems has been proposed.

Item URL in elib:https://elib.dlr.de/102651/
Document Type:Conference or Workshop Item (Speech)
Title:High Performance Felt-Metal-Wick Heat Pipe for Solar Receivers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Andraka, CharlesSandia National LabUNSPECIFIED
Moss, TimothySandia National LabUNSPECIFIED
Baturkin, Volodymyrvolodymyr.baturkin (at) dlr.deUNSPECIFIED
Zaripov, VladlenNTUU "KPI"UNSPECIFIED
Nishchyk, OleksandrNTUU "KPI"UNSPECIFIED
Date:2016
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
DOI :10.1063/1.4949054
ISSN:0094243X
ISBN:978-073541386-3
Status:Published
Keywords:solar concentration, heat pipe, new design, capillary structure
Event Title:SolarPACES 2015. Concentrating Solar Power and Chemical Energy Systems
Event Location:Cape Town, South Africa
Event Type:international Conference
Event Dates:13.-16.Okt. 2015
Organizer:SolarPACES
HGF - Research field:Energy
HGF - Program:Energy Efficiency, Materials and Resources
HGF - Program Themes:Methods and Concepts for Materials Development
DLR - Research area:Energy
DLR - Program:E VG - Combustion and Gas Turbine Technologies
DLR - Research theme (Project):E - Materials for Energy Technologies (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems
Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Baturkin, Volodymyr
Deposited On:10 Feb 2016 11:17
Last Modified:02 May 2017 11:26

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