This presentation was created and published by Junkun Ma and Xialu Wei of Southeastern Louisiana University. It provides an overview of how the measure the efficiency of evacuated tubular solar thermal collectors. In particular, the researchers set out how to best determine the efficiency of single ended evacuated tube collectors. Geometric modeling can be used for mounting angles and system analysis can be used for aspect ratios. The system analysis looks at heat transfer, fluid dynamics, volume force; which all are used as inputs in the efficiency function. The geometric modeling presented is done in both 2D and 3D models.
Author: Junkun Ma, Xialu Wei
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