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Thermal stability of used eutectic mixture of biphenyl and diphenyl ether

Jung, Christian (2023) Thermal stability of used eutectic mixture of biphenyl and diphenyl ether. In: AIP Conference Proceedings, 2815 (1), 070003. 27th International Conference on Concentrating Solar Power and Chemical Energy Systems: Solar Power and Chemical Energy Systems, SolarPACES 2021, 2021-09-27 - 2021-10-01, Virtual, Online. doi: 10.1063/5.0149109. ISSN 0094-243X.

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Official URL: https://dx.doi.org/10.1063/5.0149109

Abstract

Hydrogen is a severe issue for heat collecting elements of solar thermal parabolic trough power plants. Due to the high operating temperatures of molten salt systems about 30 times lower hydrogen limits may be required if permeation coefficients of standard receivers can be assumed. Hydrogen sources in molten salt systems are hydrogen pick-up of steels and reaction of water with steel surfaces. In this study, it could be should that even with humid solar salt hydrogen emission from steel is quickly degraded by reaction with nitrate. Accordingly, hydrogen formation with steel surfaces and water is considerably slower than hydrogen conversion by nitrate. Hence, maintaining hydrogen concentrations in the low µbar range should be achieved if no unfavorable operating conditions were applied that allowed for enhanced formation.

Item URL in elib:https://elib.dlr.de/200844/
Document Type:Conference or Workshop Item (Poster)
Title:Thermal stability of used eutectic mixture of biphenyl and diphenyl ether
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Jung, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-5893-4979UNSPECIFIED
Date:6 October 2023
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:2815
DOI:10.1063/5.0149109
Page Range:070003
ISSN:0094-243X
Status:Published
Keywords:Wärmeträgerfluid, thermische Stabilität, Zersetzung
Event Title:27th International Conference on Concentrating Solar Power and Chemical Energy Systems: Solar Power and Chemical Energy Systems, SolarPACES 2021
Event Location:Virtual, Online
Event Type:international Conference
Event Start Date:27 September 2021
Event End Date:1 October 2021
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Chemical Energy Carriers
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Solar Fuels
Location: Köln-Porz
Institutes and Institutions:Institute of Future Fuels > Chemical and Physical Fundamentals
Deposited By: Jung, Dr.rer.nat. Christian
Deposited On:02 Jan 2024 08:02
Last Modified:24 Apr 2024 21:01

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