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A fast approximate method for the calculation of the infrared radiation balance within city street cavities

Eine approximative Methode zur Berechnung der Infrarot-Strahlungsbilanz in Straßenschluchten

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Summary

The approximate calculation method for diffuse solar irradiances in street cavities presented in an earlier paper is extended to include infrared flux densities. By expanding the infrared sky radiance as a truncated trigonometric series, it becomes possible to solve the integrals representing the obstruction of the sky analytically. An example is worked out to demonstrate the numerically very efficient calculation procedure.

Zusammenfassung

Die in einer früheren Arbeit angegebene approximative Methode zur Berechnung solarer diffuser Bestrahlungsstärken in Straßenschluchten- ist erweitert worden, um ebenfalls infrarote Strahlungsstromdichten zu erfassen. Die infrarote Himmelsstrahlung wird als eine trigonometrische Reihe weniger Terme angesetzt. Dadurch wird es möglich, die Abschattung der Himmelsstrahlung durch Gebäude analytisch zu erfassen. Ein Beispiel wird diskutiert.

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References

  1. Brüht, Ch., Zdunkowski, W.: An Approximate Calculation Method for Parallel and Diffuse Solar Irradiances on Inclined Surfaces in the Presence of Obstructing Mountains or Buildings. Arch. Met. Geoph. Biocl., Ser. B32, 111–129 (1983).

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  3. Zdunkowski, W. G., Panhans, W. G., Welch, R. M., Korb, G.: A Radiation Scheme for Circulation and Climate Models. Beitr. Phys. Atmos.55, 215–238 (1982).

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Authors and Affiliations

  1. Johannes Gutenberg-Universität, Institut für Meteorologie, Anselm F. v. Bentzel-Weg 12, Postfach 3980, D-6500, Mainz, Germany

    W. Zdunkowski & Ch. Brühl

Authors
  1. W. Zdunkowski
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  2. Ch. Brühl
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Zdunkowski, W., Brühl, C. A fast approximate method for the calculation of the infrared radiation balance within city street cavities. Arch. Met. Geoph. Biocl., Ser. B 33, 237–241 (1983). https://doi.org/10.1007/BF02275097

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  • DOI: https://doi.org/10.1007/BF02275097

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