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Assessment of Novel Inorganic Storage Medium with Low Melting Point

Pfleger, Nicole and Braun, Markus and Eck, Markus and Bauer, Thomas (2015) Assessment of Novel Inorganic Storage Medium with Low Melting Point. Energy Procedia, 69, pp. 988-996. Elsevier. doi: 10.1016/j.egypro.2015.03.186. ISSN 1876-6102.

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Thermal energy storage is essential to increase the efficiency of industrial processes by waste heat utilization and to enable future solar electricity generation by solar thermal power plants. Taking into account the need to reduce the emission of CO2 and to save conventional energy both processes are indispensable. However with the (direct) storage media used so far the range of applications is limited. Currently organic media are used which are not appropriate at high temperatures due to high vapor pressures, low flash points and low thermal stabilities. Those challenges can be tackled by using inorganic media. Yet applications are limited so far because state of the art inorganic storage materials cannot be used below 100 °C requiring expensive anti-freeze systems. This paper presents a novel storage medium combining advantages of both organic media and state of the art inorganic media. This storage medium was developed by a novel method [1] and was assessed by the investigation of the most essential thermal properties, such as the heat capacity, viscosity, phase diagram around the eutectic point as well as the thermal stability. To get an idea about the thermal stability, state of the art TGA measurements were performed which suggested a higher thermal stability as compared to organic media.

Item URL in elib:https://elib.dlr.de/104231/
Document Type:Article
Title:Assessment of Novel Inorganic Storage Medium with Low Melting Point
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pfleger, Nicolenicole.pfleger (at) dlr.deUNSPECIFIED
Braun, MarkusMar.Braun (at) dlr.deUNSPECIFIED
Eck, Markusmarkus.eck (at) dlr.deUNSPECIFIED
Bauer, Thomasthomas.bauer (at) dlr.deUNSPECIFIED
Journal or Publication Title:Energy Procedia
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1016/j.egypro.2015.03.186
Page Range:pp. 988-996
Keywords:direct storage medium; nitrate salts; thermal gravimetry analysis; phase diagram; liquidus temperature
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Thermal Energy Storage
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemical Processes (Storage) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Bauer, Dr.phil. Thomas
Deposited On:01 Jun 2016 11:17
Last Modified:06 Sep 2019 15:22

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