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Baumann, Torsten and Göhring, Felix and Stadler, Hannes and Doerbeck, Till (2017) Jülich Solar Power Tower – System Behavior During Downtime. In: AIP Conference Proceedings, 1850, 030004. American Institute of Physics. SolarPACES 2016, 11.-14. Okotober 2016, Abu Dhabi, VAE. doi: 10.1063/1.4984347. ISSN 0094-243X.
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Official URL: http://aip.scitation.org/doi/abs/10.1063/1.4984347
Abstract
At the Jülich Solar Power Tower, two new shut-off dampers have been installed in the hot air piping system in order to reduce thermal losses during downtime of the plant. The thermodynamic behavior of the thermal energy storage and the steam boiler has been investigated with respect to heat losses after shut-down of the plant. Also, the change of temperature and the pressure drop at both shut-off dampers during downtime has been analyzed. Results show that for the storage, a reduction of thermal losses can be achieved by closing the damper overnight. Regarding the steam boiler, no improvements on heat losses were observed. If only two of the four storage chambers have been charged during operation, heat transfer between the chambers is observed after shut-down. It is concluded that natural convection is not the main source of thermal overnight losses, however, it can be lowered thanks to the dampers. Heat conduction and convectional heat transfer at the surfaces also contribute to the decrease of thermal energy, which can be lowered by thicker insulation layers in the future.
| Item URL in elib: | https://elib.dlr.de/115864/ | |||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
| Title: | Jülich Solar Power Tower – System Behavior During Downtime | |||||||||||||||
| Authors: |
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| Date: | 27 June 2017 | |||||||||||||||
| Journal or Publication Title: | AIP Conference Proceedings | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | Yes | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | No | |||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||
| Volume: | 1850 | |||||||||||||||
| DOI: | 10.1063/1.4984347 | |||||||||||||||
| Page Range: | 030004 | |||||||||||||||
| Publisher: | American Institute of Physics | |||||||||||||||
| ISSN: | 0094-243X | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | CSP, solar power tower, air, pressure drop, thermal energy storage, steam boiler | |||||||||||||||
| Event Title: | SolarPACES 2016 | |||||||||||||||
| Event Location: | Abu Dhabi, VAE | |||||||||||||||
| Event Type: | international Conference | |||||||||||||||
| Event Dates: | 11.-14. Okotober 2016 | |||||||||||||||
| HGF - Research field: | Energy | |||||||||||||||
| HGF - Program: | Renewable Energies | |||||||||||||||
| HGF - Program Themes: | Concentrating Solar Thermal Technology | |||||||||||||||
| DLR - Research area: | Energy | |||||||||||||||
| DLR - Program: | E SW - Solar and Wind Energy | |||||||||||||||
| DLR - Research theme (Project): | E - Advanced Heat Transfer Media (old) | |||||||||||||||
| Location: | Jülich | |||||||||||||||
| Institutes and Institutions: | Institute of Solar Research > Großanlagen und solare Materialien | |||||||||||||||
| Deposited By: | Göhring, Felix | |||||||||||||||
| Deposited On: | 30 Nov 2017 12:19 | |||||||||||||||
| Last Modified: | 31 Jul 2019 20:13 |
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- Jülich Solar Power Tower – System Behavior During Downtime. (deposited 30 Nov 2017 12:19) [Currently Displayed]
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