DEVICE FOR INDIRECT EVAPORATIVE COOLING OF AIR Russian patent published in 1997 - IPC

FIELD: air-conditioning. SUBSTANCE: plates of stack have alternating surfaces forming passages in pairs for common flow made from moisture-tight material which are open at both ends and passages for auxiliary air flow made from capillary porous material which are blanked off on side of common flow inlet and are brought in communication with common flow passages on other end. Each plate has different thickness smoothly increasing upward and forming together with adjacent plate the trapezoidal passages for common flow. Surface of plates are provided with opposing longitudinal fins on side common flow. Ratio of upper and lower bases of common flow passages range from 1/2 to 1.3. Fins are provided at distance equal to 2/3 of distance from lower edge of plates. EFFECT: enhanced efficiency. 3 cl, 2 dwg