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مکانیک::
اصلاح زاویه برخورد
The collector is symmetrical about the central axes; however, the model requires the complete 3D collector geometry in order to investigate the performance of transverse and longitudinal incidence angle modifiers.
6.5 Incidence angle modifier
To describe the angular dependent optical performance of the MCT collector, it is necessary to calculate the incident angle modifier (IAM) in the transverse and the longitudinal planes.
A common interpolation formula is the factorization of the IAM (Rabl 1985):
The incident angle modifier accounts for change in optical efficiency with incidence angle zero.
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