Steam generation in compound parabolic concentrator collectors
This report describes the advantages of generating steam directly in a nonimaging compound parabolic concentrator (CPC) collector rather than using a heat-transfer fluid and a secondary heat exchanger. The predicted performance advantages from generating steam directly in CPC collectors are significant, and that performance has ben verified using a collector built and tested at Argonne National Laboratory. The collector and the method used to test its operation in a steam-generating mode are described. Test results are included for a 6.4-m/sup 2/ array of evacuated tube collectors with an advanced absorber coating, silver reflectors, and tubes oriented in a north-south configuration. Also described are the test methods and results for indoor testing for heat loss by the collectors and outdoor testing of their instantaneous optical efficiency.
- Research Organization:
- Argonne National Lab., IL (USA). Energy and Environmental Systems Div.
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5294174
- Report Number(s):
- ANL/CNSV-TM-179; ON: DE86015954
- Country of Publication:
- United States
- Language:
- English
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