| 摘要 |
PCT No. PCT/SE81/00340 Sec. 371 Date Jul. 23, 1982 Sec. 102(e) Date Jul. 23, 1982 PCT Filed Nov. 24, 1981 PCT Pub. No. WO82/01938 PCT Pub. Date Jun. 10, 1982.Heat exchange between liquid (1) and air (2) is effected by causing the liquid (1) to flow, in the form of a liquid film (5) spreading under capillary action, between pairs (3) of vertically oriented band-shaped thin membranes (4a and 4b) held together by adhesive forces in the liquid film (5). The air flow (2) preferably is conducted in counterflow with the liquid flow (1) in gaps (6) surrounding the pairs of membranes (3). Exchange of heat between liquid and air occurs through the membrane walls (4a, 4b). The membranes (4a and 4b) preferably consist of a thin plastic film, for example matted polyester film. |
