Performance Evaluation of the 200-kWth HiTRec-II Open Volumetric Air Receiver-Reference-Cited by-同舟云学术

Performance Evaluation of the 200-kWth HiTRec-II Open Volumetric Air Receiver

Published:2003-01-27 Issue:1 Volume:125 Page:87-94
ISSN:0199-6231
Container-title:Journal of Solar Energy Engineering
language:en
Short-container-title:

Author:

Hoffschmidt Bernhard¹,Te´llez Fe´lix M.²,Valverde Antonio³,Ferna´ndez Jesu´s³,Ferna´ndez Valerio⁴

Affiliation:

1. Deutsches Zentrum fu¨r Luft- und Raumfahrt e.V. (DLR), Solare Energietechnik, D 51170 Ko¨ln, Germany

2. CIEMAT/DER-PSA, Avda. Complutense, 22, E-28040, Madrid, Spain

3. CIEMAT/DER-PSA, Apartado, 22, E-04200 Tabernas, Spain

4. SOLUCAR, Avda. de la Buaira, 2, E-41018 Sevilla, Spain

Abstract

The High Temperature Receiver (HitTRec) consists of a modular ceramic absorber, a supporting structure and an air-return system. It has been designed to prevent possible flow instability at 700-800°C average outlet air temperature with atmospheric pressure. The HiTRec-II prototype was developed to solve the structural problems of the first prototype (HiTRec-I). Testing in the Plataforma Solar de Almerı´a (PSA) test bed lasted from November 2000 through May 2001, accumulating 150 test hours under concentrated sun. Results demonstrated the durability of the modified stainless-steel structure. Inlet aperture flux was up to 900kW/m2 and average outlet air temperatures of up to 840°C with peak outlet air temperatures of up to 950°C. Thermal efficiency under steady-state conditions was 76±7% at 700°C, nominal conditions for a PHOEBUS-type volumetric receiver. Other performance characteristics were also evaluated (e.g., Air Return Ratio of 46% and characteristic receiver response time of 70 s).

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/solarenergyengineering/article-pdf/125/1/87/5713428/87_1.pdf

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