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TECHNICAL PAPERS

An Equivalent Mean Day Calculation to Predict Monthly Average Daily Utilizability for Flat Plate Collectors

[+] Author and Article Information
V. V. Satyamurty, K. Sarath Babu, P. K. Lahiri

Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721302, India

J. Sol. Energy Eng 122(2), 106-113 (Mar 01, 2000) (8 pages) doi:10.1115/1.1286730 History: Received January 01, 1999; Revised March 01, 2000
Copyright © 2000 by ASME
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References

Klein,  S. A., 1978, “Calculation of Flat-Plate Collector Utilizability,” Sol. Energy, 21, pp. 393–402.
Collares-Pereira,  M., and Rabl,  A., 1979, “Derivation of Method for Predicting Long Term Average Energy Delivery of Solar Collectors,” Sol. Energy, 23, pp. 223–233.
Collares-Pereira,  M., and Rabl,  A., 1979, “Simple Procedure for Predicting Long Term Average Performance of Non Concentrating and of Concentrating Solar Collectors,” Sol. Energy, 23, pp. 235–253.
Lunde, Peter J., 1980, Solar Thermal Engineering (Space Heating and Hot Water Systems), Wiley, New York.
Evans,  D. L., Rule,  T. T., and Wood,  B. D., 1982, “A New look at Long-Term Collector Performance and Utilizability,” Sol. Energy, 28, p. 13.
Clark,  D. R., Klein,  S. A., and Beckman,  W. A., 1983, “Algorithm for Evaluating the Hourly Radiation Utilizability Function,” Trans. ASME, 103, p. 281.
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Klein,  S. A., and Beckman,  W. A., 1984, “Review of Solar Radiation Utilizability,” ASME Sol. Energy Eng., 106, pp. 393–402.
Theilacker, J. C., and Klein, S. A., 1980, “Improvements in the Utilizability Relationships,” in Proceedings of the American Section of the International Solar Energy Society Meeting, Phoenix, Arizona, 1980, p. 271.
Suehrke,  H., and McCormick,  P. G., 1989, “Solar Radiation Utilizability,” Sol. Energy, 43, pp. 339–345.
Klein,  S. A., and Beckman,  W. A., 1979, “A Generalized Design Method for Closed-Loop Solar Energy Systems,” Sol. Energy, 22, pp. 269–274.
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Acharya, L. M., 1987, “Studies on Monthly Average Parameters in the Design Methods for Solar Energy Heating Systems,” Ph.D. thesis, I. I. T. Kharagpur, India.
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Klein,  S. A., and Theilacker,  J. C., 1981, “An Algorithm for Calculating Monthly-Average Radiation on Inclined Surfaces,” ASME Sol. Energy Eng., 103, pp. 29–33.
Collares-Pereira,  Manuel, and Rabl,  Ari, 1979, “The Average Distribution of Solar Radiation-Correlations Between Diffuse and Hemispherical and Between Daily and Hourly Insolation Values,” Sol. Energy, 22, pp. 155–164.
Satyamurty,  V. V., and Lahiri,  P. K., 1992, “Estimation of Symmetric and Asymmetric Hourly Global and Diffuse Radiation from the Daily Values,” Sol. Energy, 48, pp. 7–14.
Abramowitz, M., and Stegun, I. A., 1972, Handbook of Mathematical Functions with Formulas, Graphs and Mathematical Tables, Dover Publications, New York.
Bendt,  P., Collares-Pereira,  M., and Rabl,  A., 1981, “The Frequency Distribution of Daily Insolation Values,” Sol. Energy, 27, p. 1.
Aerological Data of India, Part III, Radiation Data, (1971–78), Meteorological Department, New Delhi, India.
William, M., and Urban, K., 1995, “User’s Manual for TMY2S,” National Renewable Energy Laboratory, Golden, CO, USA. Also can be accessed at http://rredc.nrel.gov.solar/old_data/nsrdb/tmy2/

Figures

Grahic Jump Location
Graphical depiction of daily utilizability
Grahic Jump Location
Equivalent Mean Day: Depiction of KT,minC,Nc and KTE
Grahic Jump Location
Comparison of monthly average daily utilizability obtained from hour by hour summation and EMD method for flat plate collectors, γ=0°
Grahic Jump Location
Comparison of monthly average daily utilizability obtained from hour by hour summation and EMD method for flat plate collectors, γ=30° and 90°
Grahic Jump Location
Comparison of monthly average daily utilizability calculated from actual data and Equivalent Mean Day (EMD) method for flat plate collectors

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