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TECHNICAL PAPERS

Performance of the Directly-Irradiated Annular Pressurized Receiver (DIAPR) Operating at 20 Bar and 1,200°C

[+] Author and Article Information
A. Kribus, P. Doron, J. Karni

Weizmann Institute of Science, Environmental Sciences and Energy Research Dept., Rehovot 76100, Israel

R. Rubin

Weizmann Institute of Science, Solar Facilities Unit, Rehovot 76100, Israel

R. Reuven, E. Taragan, S. Duchan

Rotem Industries Ltd., P.O. Box 9046, Beer-Sheva 84190, Israel

J. Sol. Energy Eng 123(1), 10-17 (Nov 01, 2000) (8 pages) doi:10.1115/1.1345844 History: Received May 01, 2000; Revised November 01, 2000
Copyright © 2001 by ASME
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References

Kribus,  A., Zaibel,  Z., Segal,  A., Carey,  D., and Karni,  J., 1998, “A solar-driven Combined Cycle plant,” Sol. Energy, 62, pp. 121–129.
Karni,  J., Kribus,  A., Rubin,  R., Sagie,  D., Doron,  P., and Fiterman,  A., 1997, “The DIAPR: a high-pressure, high-temperature solar receiver,” ASME J. Sol. Energy Eng., 119, pp. 74–78.
Karni,  J., Kribus,  A., Rubin,  R., and Doron,  P., 1998, “The Porcupine: a novel high-flux absorber for volumetric solar receivers,” ASME J. Sol. Energy Eng., 120, pp. 85–95.
Hoffschmidt, B., Pitz-Paal, R., Böhmer, M., Fend, T., and Rietbrock, P., 1998, “200 kWth open volumetric air receiver (HiTRec) of DLR reached 1000°C average outlet temperature at PSA,” 9th Int. Symp. on Solar Thermal Concentrating Technologies, J. de Phys. IV, G. Flamant, A. Ferriere, and F. Pharabod, eds., Odeillo, EDP Sci., 9 , pp. 551–556.
Buck, R., Heller, P., and Koch, H., 1996, “Receiver Development for a Dish-Brayton System,” ASME Int. Solar Energy Conf., pp. 9–96.
Buck, R., Biehler, T., and Heller, P., 1992, “Advanced volumetric receiver-reactor for solar methane reforming,” 6th Int. Symp. on Solar Thermal Concentrating Technologies, Almeria, Vol. 1 , pp. 395–405.
Buck, R., Abele, M., Kunberger, T., Denk, T., Heller, P., and Lüpfert, E., 1998, “Receiver for solar-hybrid gas turbine and combined cycle systems,” 9th Int. Symp. on Solar Thermal Concentrating Technologies, J. de Phys. IV, G. Flamant, A. Ferriere, and F. Pharabod, eds., Odeillo, EDP Sci, 9 , pp. 537–544.
Karni, J., Rubin, R., Kribus, A., Doron, P., and Sagie, D., 1996, “Test Results with the Directly-Irradiated Annular Pressurized Receiver,” 8th Int. Symp. on Solar Thermal Concentrating Technologies, M. Becker, M. Böhmer, C. Köln, and F. Müller, eds., Vol. 2 , pp. 607–620.
Yogev, A., Fisher, U., Erez, A., and Blackmon, J., 1999, “High temperature solar energy conversion systems,” Solar World Congress, G. Grossman, ed., Jerusalem, Vol. 1 , pp. 71–78.
Karni,  J., Kribus,  A., Ostraich,  B., and Kochavi,  E., 1998, “A high-pressure window for volumetric solar receivers,” ASME J. Sol. Energy Eng., 120, pp. 101–107.
Kribus,  A., 1994, “Optical performance of a conical window for solar receivers,” ASME J. Sol. Energy Eng., 116, pp. 47–52.
Doron, P., and Kribus, A., 1996, “Receiver partitioning: a performance boost for high-temperature solar applications,” 8th Int. Symp. on Solar Thermal Concentrating Technologies, M. Becker, M. Böhmer, C. Köln, and F. Müller, Vol. 2, pp. 621–630.
Kribus, A., Doron, P., Karni, J., Rubin, R., Ostreich, B., Danino, M., Sagie, D., and Taragan, E., 1997, “High temperature receivers: Divide and Conquer,” 8th Sede Boqer Symp. on Solar Electricity Production, D. Faiman, ed., Sede Boker, Israel, pp. 187–190.
Kribus,  A., Doron,  P., Karni,  J., Rubin,  R., Reuven,  R., Taragan,  E., and Duchan,  S., 2000, “A multistage solar receiver: the route to high temperature,” Sol. Energy, 67, pp. 3–11.
Ries,  H., Segal,  A., and Karni,  J., 1997, “Extracting Concentrated Guided Light,” Appl. Opt., 36, pp. 2869–2874.
Zukauskas, A., 1987, “Heat transfer from tubes in cross flow,” Advances in Heat Transfer, J.P. Hartnett and T.F. Irvine, eds., Academic Press, New York, 18 , pp. 87–159.

Figures

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Schematic cross-section of the DIAPR version tested at the WIS Solar Tower: (a) 1996 version, (b) 1998 version. See text for discussion of the differences between the two versions.
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The Porcupine absorber: (a) a block of the Porcupine absorber, (b) possible locations of the thermocouples within a Porcupine quill.
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Infrared measurement of the window temperature: (a) front view from the receiver position towards the heliostat field, (b) top view. The cooled mirror can be translated along the vertical and horizontal axes, and rotated independently around the same two axes. The second mirror can be translated vertically and rotated around the vertical and horizontal axes.
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Variation of (a) air exit temperature and (b) output power with mass flow rate, for the two tests series in 1996 and 1998
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Comparison of temperature trends for representative receiver elements: absorber maximum and average, air exit, and window
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A typical time series of insolation, maximum absorber temperature, and air exit temperature for the duration of an experiment
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Temperature distribution around the absorber (°C) in tests with (a) the 1996 and (b) the 1998 design. Temperatures are averaged over the depth of the Porcupine absorber. The ‘East’ position is duplicated to provide a full 360° spread. Arrows indicate the presumed general direction of the mean flow.
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Temperature distribution (°C) within cross-sections of the absorber in tests with (a) the 1996 dual inlet configuration and (b) the 1998 single inlet design. Arrows indicate approximate direction of velocity. Dots indicate active thermocouples.
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Measured average convective Heat Transfer Coefficient (HTC) in the Porcupine absorber vs. a prediction based on correlations for cylinder arrays, line corresponds to exact matching of the measurement and prediction
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Receiver efficiency vs. air exit temperature
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Sample IR maps of window temperature; (a) IR camera monitor window; (b) Temperature contours (°C) derived from the gray scale image in (a), Dashed lines show the parts of the receiver that are hidden due to the camera view angle; (c) Camera monitor window for a different test, showing image from a somewhat different angle

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