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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/ | ||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
| Title: | Determination of Isobaric Enthalpy Differences of Heat Transfer Fluids | ||||||||||||||||
| Authors: |
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| 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: |
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| 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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