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1 Poznan University of Technology Academic Journals. Electrical Engineering

1 2007

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Application of the radiance environment for modelling optical radiation systems

Domke K., Gawroński M., Skrzypczak P.

Poznan University of Technology Academic Journals. Electrical Engineering

2007

No 56

31-39

The RADIANCE environment, originally developed for visualisation purposes, makes il possible (after being complemented with relevant procedures describing radiative heat transfer) to model and simulate systems of visible radiation and thermal radiation. One example of using RADIANCE in radiative heat transfer systems involves modelling results indicating that it is possible to investigate the effects of changes in geometrical dimensions of a heating coil installed in a resistance furnace on the uniformity of irradiance distribution. The results presented below apply to the wall of a resistance furnace and a heating coil with a rectangular cross-section. On the other hand, the application of the Radiance environment to determine the photometric solid of an automotive headlight lamp is an example documenting the potential for simulation-based computation of basic values of light quantities. The modelling technique adopted makes it possible to eliminate the majority of simplifications inherent in traditional methods, concerning the shape of the reflector and other elements of the luminaire. The account below presents results of computations for a car projector headlight equipped with a transparent lamp lens and basic optical system.