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TECHNICAL PAPERS

Hydrodynamic Analysis of Direct Steam Generation Solar Collectors

[+] Author and Article Information
S. D. Odeh, M. Behnia, G. L. Morrison

School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

J. Sol. Energy Eng 122(1), 14-22 (Nov 01, 1999) (9 pages) doi:10.1115/1.556273 History: Received June 01, 1998; Revised November 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Solar receiver configuration and heat loss modes
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Flow pattern maps and operating characteristics for horizontal DSG collector absorber tube, water-steam, Pin=100 bar,tin=210°C,texit=450°C, (a) Di=54 mm, and (b) Di=38 mm
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Flow pattern distribution as a function of feedwater flow rate in the bolling zone of a DSG collector. tin=210°C, 600 m long, Di=54 mm,Ibeam=1000 W/m2, (a) Horizontal absorber tube and (b) 10 deg inclined absorber tube.
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Stratified region length versus beam radiation for a horizontal absorber tube, Pin=100 bar,tin=210°C,Di=54 mm, 600 m long
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Flow pattern distribution in a horizontal DSG collector absorber tube, Pin=100 bar,tin=210°C,texit=450°C, 600 m long, Di=54 mm, flow rate 0.95 kg/s, lbeam=1000 W/m2.
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Flow pattern distribution in 10 deg inclined DSG collector assembly, 24 collectors× 25 m long, Pin=100 bar,tin=210°C,texit=450°C,Di=54 mm, flow rate 0.95 kg/s, Ibeam=1000 W/m2
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Comparison between frictional pressure gradient by Martinelli-Nelson 14 and Olujic 23 correlations and Manzano et al. 17 test data for steam-water flow in a horizontal tube, working pressure 20 bar
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Comparison of friction pressure drop correlation by Martinelli-Nelson 14 and Oiujic 23 with Antipov test data for mass fluxes of 500 and 1250 kg/m2 s in a vertical pipe, working pressure 60 bar, Di=13 mm and L=0.975 m
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Pressure drop in a horizontal DSG collector versus feed water flow rate for different working pressures. tin=210°C, 600 m long, Di=54 mm,Ibeam=1000 W/m2.
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Pressure drop in different phase regions in a horizontal absorber tube as a function of beam radiation, Lcollector=600 m,Pin=100 bar,tin=210°C,Di=54 mm, flow rate 0.95 kg/s
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Total pressure drop versus beam radiation in horizontal and 10° inclined absorber tubes, 600 m long, tin=210°C,Pin=100 bar,Di=54 mm, flow rate 0.95 kg/s
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Pressure drop in a horizontal DSG collector and a VP-1 oil based collector, 600 m long, Pin=100 bar,tin=210°C, for water Di=54 mm, for oil Di=66 mm,Ibeam=1000 W/m2
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Pressure drop versus feed water flow rate at different radiation levels, Pin=100 bar,tin=210°C,Di=54 mm, 600 m long
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Pressure drop in the horizontal collector for different absorber tube diameters, Pin=100 bar,tin=210°C,Ibeam=1000 W/m2
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Bolling region flow regimes in a horizontal collector versus absorber tube length, Pin=100 bar,tin=210°C,texit=450°C,Ibeam=1000 W/m2
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Overall collector efficiency versus absorber tube length for absorber tube diameters of 38 and 54 mm, Pin=100 bar,tin=210°C,Ibeam=1000 W/m2

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