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TEST OF A SOLAR-HYBRID MICROTURBINE SYSTEM AND EVALUATION OF STORAGE DEPLOYMENT

Amsbeck, Lars and Denk, Thorsten and Ebert, Miriam and Gertig, Christian and Heller, Peter and Herrman, Patrik and Jedamski, Jens and John, Joachim and Tobias, Prosinečki and Rehn, Johnny (2010) TEST OF A SOLAR-HYBRID MICROTURBINE SYSTEM AND EVALUATION OF STORAGE DEPLOYMENT. Solarpaces 2010, 21.-24.Sep. 2010, Perpignan, Frankreich.

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Abstract

A solar-hybrid microturbine system using a tube receiver and a Turbec T100 was tested at the Plataforma Solar de Almería. The design receiver outlet temperature of 800°C was achieved with an open receiver aperture and also using a pressureless quartz window. Measured receiver efficiencies of 39.7% for the open receiver at 782°C outlet temperature and 44% at 803°C outlet temperature for the configuration with the window are much lower than the design values due to design flaws in the cavity insulation and a too low mass flow from the turbine. Nevertheless, the encountered problems are solvable and further lessons learned are given. For a commercial system design using small heliostats of 1m2-mirror area a peak receiver efficiency of >85% was simulated using a face-down receiver configuration with a much smaller aperture. The solar-hybrid system can also be combined with a pressurized pebble-bed heat storage. For an off-grid application a solar share of 82% was simulated.

Document Type:Conference or Workshop Item (Paper)
Title:TEST OF A SOLAR-HYBRID MICROTURBINE SYSTEM AND EVALUATION OF STORAGE DEPLOYMENT
Authors:
AuthorsInstitution or Email of Authors
Amsbeck, Larslars.amsbeck@dlr.de
Denk, Thorstenthorsten.denk@psa.es
Ebert, Miriammiriam.ebert@dlr.de
Gertig, Christianchristian.gertig@solar.abengoa.com
Heller, Peterpeter.heller@dlr.de
Herrman, PatrikUNSPECIFIED
Jedamski, Jensjens.jedamski@dlr.de
John, Joachim GEA
Tobias, ProsinečkiUNSPECIFIED
Rehn, JohnnyTurbec
Date:21 September 2010
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:Solar tower, microturbine, tube receiver, solar-hybrid, heat storage, off-grid
Event Title:Solarpaces 2010
Event Location:Perpignan, Frankreich
Event Type:international Conference
Event Dates:21.-24.Sep. 2010
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Hochtemperatursysteme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Lars Amsbeck
Deposited On:24 Jan 2011 11:23
Last Modified:22 Jul 2013 15:29

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