| 摘要 |
The present invention relates to a sheet material for heat exchange between fluids, a first and a second fluid, thus inducing a phase change in the fluids. The sheet material is folded to form a plurality of slits, which slits constitute the flow paths of the fluids, where the slits for the first fluid, through at least one seal, are closed, and where the slits for the second fluid, through at least one seal, are fully or partly open for fluid outflow. |
