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TECHNICAL PAPERS

A Review of Polymer Materials for Solar Water Heating Systems

[+] Author and Article Information
Raghu Raman, Susan Mantell, Jane Davidson, Chunhui Wu

Department of Mechanical Engineering, University of Minnesota, 111 Church St., S.E., Minneapolis, MN 55455

Gary Jorgensen

National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401

J. Sol. Energy Eng 122(2), 92-100 (May 01, 2000) (9 pages) doi:10.1115/1.1288214 History: Received December 01, 1999; Revised May 01, 2000
Copyright © 2000 by ASME
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References

Murley, C., 1996, “Personal Communication,” Sacramento Municipal Utility District.
Andrews, J. W., Le Doux, P., Metz, P. D., and Wilhelm, W. G., 1983, “Development of Low Cost Polymer Film Solar Collectors: Annual Report,” Technical Report BNL-51693, Rookhaven National Laboratory.
Duffy, D. R., Muller, T. K., and Hull, J. L., 1986, “Thin-Film Material Research for Low-Cost Solar Collectors,” Technical Report DOE/SF/12202-1, U.S. Department of Energy.
Spears, R. P., and Tretina, P. J., 1987, “Thin Film Materials Research for Low Cost Solar Collectors,” Technical Report DOE/SF/11922, U.S. Department of Energy.
Thermal Conversion Technology, 1999, “Personal Communication.”
Kutscher, C., 1984, “Low-Cost Collectors/Systems Development Progress Report,” Technical Report SERI/RR-253-1750, National Renewable Energy Laboratory, Golden.
ASTM, 1993, “Standard E 892-87 (Reapproved 1992): Standard Tables for Terrestrial Solar Spectral Irradiance at Air Mass 1.5 for a 37° Tilted Surface,” Annual Book of ASTM Standards, 12.02 , Philadelphia.
ASTM, 1995, “Standard E 903-82 (Reapproved 1992): Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres,” Annual Book of ASTM Standards, 12.02 , Philadelphia.
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NSF-14, 1998, “NSF Listings: Plumbing System Components,” National Sanitary Foundation International, Michigan.
Davidson, J. H., Oberreit, D., Liu, W., and Mantell, S. C., 1999, “Are Plastic Heat Exchangers Feasible for Solar Water Heaters? Part I: A Review of Codes and Standards and Commercial Products,” Proceedings, Renewable and Advanced Energy Systems for the 21st Century, RAES99-7683, Maui, Hawaii.
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Figures

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Spectral irradiance of accelerated exposure chamber versus 2X global air mass 1.5 terrestrial solar spectrum
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UV-screened polymeric glazing
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(a) Hemispherical transmittance of Tedlar UV screen laminated to glass as a function of time in the accelerated Ci5000 test facility exposure. (b) Hemispherical transmittance of Korad UV screen laminated to glass as a function of Ci5000 exposure.
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Solar weighted hemispherical transmittance for APEC PC-9351 and -9353 glazings with and without Korad UV screen as a function of accelerated exposure in the Ci 5000 Weather-Ometer (WOM)
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Solar weighted hemispherical transmittance for APEC PC-9351 glazing with and without Korad UV screen as a function of outdoor exposure. At each exposure-time, there are two data points (cleaned and uncleaned) for each specimen. The higher transmittance corresponds to the cleaned specimen.
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Solar weighted hemispherical transmittance for APEC PC-9353 glazings with and without Korad UV screen as a function of outdoor exposure
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Comparison of the normalized ratio of thermal conductance (K, W/m2⋅K) to cost per unit area (CA, $/m2) for unreinforced polymer heat exchanger materials intended for tubing. (All values normalized with respect to the value of 7622 W/K⋅$ for unreinforced Zytel42A Nylon.)
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Comparison of the normalized ratio of long term strength (S, MPa) to cost (Cv,$/m3) for reinforced polymer heat exchanger materials intended for headers. (All values normalized with respect to 3470 N⋅m/$, the strength/cost ratio of reinforced HTN.)

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