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Highlights of the High-Temperature Falling Particle Receiver Project: 2012 - 2016

Ho, C. K. and Christian, J. and Yellowhair, J. and Jeter, S. and Golob, M. and Nguyen, C. and Repole, K. and Abdel-Khalik, S. and Siegel, N. and Al-Ansary, H. and El-Leathy, A. and Gobereit, Birgit (2017) Highlights of the High-Temperature Falling Particle Receiver Project: 2012 - 2016. In: AIP Conference Proceedings, 1850 (1), 030027-1. SolarPACES 2016, 11. Okt. - 14. Okt. 2016, Abu Dhabi, United Arab Emirates. DOI: 10.1063/1.4984370

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Official URL: https://aip.scitation.org/doi/abs/10.1063/1.4984370

Abstract

A 1 MWt continuously recirculating falling particle receiver has been demonstrated at Sandia National Laboratories. Free-fall and obstructed-flow receiver designs were tested with particle mass flow rates of ∼1 – 7 kg/s and average irradiances up to 1,000 suns. Average particle outlet temperatures exceeded 700 °C for the free-fall tests and reached nearly 800 °C for the obstructed-flow tests, with peak particle temperatures exceeding 900 °C. High particle heating rates of ∼50 to 200 °C per meter of illuminated drop length were achieved for the free-fall tests with mass flow rates ranging from 1 – 7 kg/s and for average irradiances up to ∼ 700 kW/m2. Higher temperatures were achieved at the lower particle mass flow rates due to less shading. The obstructed-flow design yielded particle heating rates over 300 °C per meter of illuminated drop length for mass flow rates of 1 – 3 kg/s for irradiances up to ∼1,000 kW/m2. The thermal efficiency was determined to be ∼60 – 70% for the free-falling particle tests and up to ∼80% for the obstructed-flow tests. Challenges encountered during the tests include particle attrition and particle loss through the aperture, reduced particle mass flow rates at high temperatures due to slot aperture narrowing and increased friction, and deterioration of the obstructed-flow structures due to wear and oxidation. Computational models were validated using the test data and will be used in future studies to design receiver configurations that can increase the thermal efficiency.

Item URL in elib:https://elib.dlr.de/121510/
Document Type:Conference or Workshop Item (Speech)
Title:Highlights of the High-Temperature Falling Particle Receiver Project: 2012 - 2016
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ho, C. K.Sandia National Laboratories, P.O. Box 5800, MS-1127, Albuquerque, NM 87185-1127, USAUNSPECIFIED
Christian, J.Sandia National Laboratories, P.O. 5800, Albuquerque, NM 87185-1127, USAUNSPECIFIED
Yellowhair, J.Sandia National Laboratories, P.O. 5800, Albuquerque, NM 87185-1127, USAUNSPECIFIED
Jeter, S.Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USAUNSPECIFIED
Golob, M.Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USAUNSPECIFIED
Nguyen, C.Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USAUNSPECIFIED
Repole, K.Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USAUNSPECIFIED
Abdel-Khalik, S.Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USAUNSPECIFIED
Siegel, N.Bucknell University, 1 Dent Drive, Lewisburg, PA 17837, USAUNSPECIFIED
Al-Ansary, H.King Saud University, P.O. Box 800, Riyadh 11412, Saudi ArabiaUNSPECIFIED
El-Leathy, A.King Saud University, P.O. Box 800, Riyadh 11412, Saudi ArabiaUNSPECIFIED
Gobereit, BirgitBirgit.Gobereit (at) dlr.dehttps://orcid.org/0000-0002-1952-9209
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 :10.1063/1.4984370
Page Range:030027-1
Status:Published
Keywords:Particle Receiver System; Particle Thermal Storage; Particle Heat Exchanger; Particle Lift
Event Title:SolarPACES 2016
Event Location:Abu Dhabi, United Arab Emirates
Event Type:international Conference
Event Dates:11. Okt. - 14. Okt. 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
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Uhlig, Tamara
Deposited On:31 Aug 2018 12:07
Last Modified:31 Jul 2019 20:19

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