July 3-8, 2016
Solar air receiver is the core component of central receiver system (CRS) in solar thermal power plants due to the unique feature of some porous medium like silicon carbide foam ceramic and so on. In the air receiver, the porous material receives the concentrated sunlight from the heliostat field and heats up the pumped inlet air by convection and radiation. The incident radiation is distributed in the inner space of the porous medium rather than located on the boundary of the heated face in the front of the receiver. Aiming at this phenomenon which called volumetric effect, we propose a novel solar air receiver using the porous medium with variable porosity along the incident direction to optimize its heat transfer process and increase the thermal efficiency of the receiver.
Please download the full abstract below.
Pei Wang and D. Y. Liu, "Effect of the variable porosity on the heat transfer process in solar air receiver" in "Sixth International Conference on Porous Media and Its Applications in Science, Engineering and Industry", ECI Symposium Series, (2016). http://dc.engconfintl.org/porous_media_vi/17