Browsing Acta Polytechnica. 2019, vol. 59, no.2 by Author "Mrňa , Libor"
Author: Mrňa , Libor; Řiháček , Jan; Šarbort , Martin; Horník , Petr
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The basic idea of a solar absorber’s thermal gain increase is the keyhole effect utilization during which the radiation is absorbed by multiple reflections on cavity walls. The lattice of pyramidal or conical cavities on ...