Heat exchanger and solar absorber with forced convection

摘要

Heat exchanger in which due to the broad surface suction of air (2) through an absorption surface (3) provided with many fine holes, the thermal convection acting against the direction of suction is suppressed. Undulating tubes are used as the surface material and are so assembled by fastening, adhesion or welding that the holes for the suction of air are created by the displaced or frontal contact of the outer edges of the material. A liquid or gaseous heat carrier can be additionally or alternatively pumped through the tubes.