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 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 and average outlet air temperatures of up to with peak outlet air temperatures of up to Thermal efficiency under steady-state conditions was at 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).
Performance Evaluation of the HiTRec-II Open Volumetric Air Receiver
Contributed by the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received by the ASME Solar Energy Division, June 2001; final revision, April 2002. Associate Editor: R. Pitz-Paal.
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Hoffschmidt, B., Te´llez, F. M., Valverde , A., Ferna´ndez , J., and Ferna´ndez, V. (January 27, 2003). "Performance Evaluation of the HiTRec-II Open Volumetric Air Receiver ." ASME. J. Sol. Energy Eng. February 2003; 125(1): 87–94. https://doi.org/10.1115/1.1530627
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