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Detailed Performance Analysis of a 10 kW Dish/Stirling System

Reinalter, Wolfgang and Ulmer, Steffen and Heller, Peter and Rauch, Thorsten and Gineste, Jean-Michel and Ferriere, Alain and Nepveu, Francois (2008) Detailed Performance Analysis of a 10 kW Dish/Stirling System. Journal of Solar Energy Engineering (130). American Society of Mechanical Engineers. DOI: 10.1115/1.2807191.

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Official URL: http://asmedl.aip.org/dbt/dbt.jsp?KEY=JSEEDO&Volume=CURVOL&Issue=CURISS

Abstract

The CNRS-Promes dish/Stirling system was erected in Jun. 2004 as the last of three country reference units built in the “Envirodish” project. It represents the latest development step of the EuroDish system with many improved components. With a measured peak of 11 kW electrical output power, it is also the best performing system so far. The measurement campaign to determine the optical and thermodynamic efficiency of the system is presented. The optical quality of the concentrator and the energy input to the power conversion unit was measured with a classical flux-mapping system using a Lambertian target and a charge coupled device camera system. An efficiency of the concentrator including the intercept losses of 74.4% could be defined for this particular system. For the thermodynamic analysis all the data necessary for a complete energy balance around the Stirling engine were measured or approximated by calculations. For the given ambient conditions during the tests, a Stirling engine efficiency of 39.4% could be measured. The overall efficiency for the conversion of solar to electric energy was 22.5%.

Document Type:Article
Title:Detailed Performance Analysis of a 10 kW Dish/Stirling System
Authors:
AuthorsInstitution or Email of Authors
Reinalter, WolfgangUNSPECIFIED
Ulmer, SteffenUNSPECIFIED
Heller, PeterUNSPECIFIED
Rauch, ThorstenUNSPECIFIED
Gineste, Jean-MichelPromes-CNRS
Ferriere, AlainPromes-CNRS
Nepveu, FrancoisPromes-CNRS
Date:1 February 2008
Journal or Publication Title:Journal of Solar Energy Engineering
DOI:10.1115/1.2807191
Editors:
EditorsEmail
Steinfeld, AldoUNSPECIFIED
Publisher:American Society of Mechanical Engineers
Status:Published
Keywords:dish/Stirling system, EuroDish, performance analysis, optical efficiency, thermodynamic efficiency, flux mapping, energy balance
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: other
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Wolfgang Reinalter
Deposited On:28 Feb 2008
Last Modified:12 Dec 2013 20:29

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