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Determination of Isobaric Enthalpy Differences of Heat Transfer Fluids

Jung, Christian and Nietsch, Anke and Spenke, Carsten (2020) Determination of Isobaric Enthalpy Differences of Heat Transfer Fluids. In: 2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019, 2303, 0028892. American Institute of Physics Inc.. 2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019, 2019-10-01 - 2019-10-04, Daegu, Südkorea. doi: 10.1063/5.0028892. ISBN 978-073544037-1. ISSN 0094-243X.

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Official URL: https://aip.scitation.org/doi/abs/10.1063/5.0028892

Abstract

The heat capacity of eutectic diphenyl oxide (DPO) and biphenyl (BP) was investigated with Calvet-type differential scanning calorimetry. Significant impact of the sample mass per crucible was found. With 82 mg per 130 µl lowest impact by heat of evaporation on the readings was achieved. With the linear data fit C (in J/(g*K)) = 0.00268 * T (in °C) + 1.4917 in the range of 130 – 409 °C the calculated enthalpy difference between 300 °C and 400 °C is 0.6 – 3.7% smaller in comparison to the projections based on manufacturer’s data sheets. The impact of pressure on the enthalpy difference was tested with a compression loop between 17 bar and 63 bar. It could be shown that additional mechanical pressure causes decreases of the enthalpy difference by -0.03% J/(g*bar).

Item URL in elib:https://elib.dlr.de/192143/
Document Type:Conference or Workshop Item (Speech)
Title:Determination of Isobaric Enthalpy Differences of Heat Transfer Fluids
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Jung, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-5893-4979UNSPECIFIED
Nietsch, AnkeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spenke, CarstenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:11 December 2020
Journal or Publication Title:2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:2303
DOI:10.1063/5.0028892
Page Range:0028892
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
Richter, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Publisher:American Institute of Physics Inc.
ISSN:0094-243X
ISBN:978-073544037-1
Status:Published
Keywords:Heat transfer fluid, heat capacity, isobaric heat transfer
Event Title:2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019
Event Location:Daegu, Südkorea
Event Type:international Conference
Event Start Date:1 October 2019
Event End Date:4 October 2019
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:14 Dec 2022 09:35
Last Modified:24 Apr 2024 20:53

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