20100132930 | Flexible Heat/Mass Exchanger - A flexible heat/mass exchanger constructed of flexible layers defining a flow channel and exterior surfaces. The heat/mass exchanger utilizes a working liquid, such as water, that is present in the flow channel during use. The heat/mass exchanger uses one or more porous and/or permeable materials to allow mass exchange between the working liquid in the flow channel and the environment surrounding the heat/mass exchanger. In a cooling mode, evaporation of the working liquid occurs via the mass exchange. In a dehumidification mode, moisture in the surrounding environment is transported to the working liquid via the mass exchange. In some embodiments, the heat/mass exchanger is made of a number of flexible sheets of material. One or more flexible heat/mass exchangers may be used to form a semi-closed system, such as a personal cooling system with a circulating coolant loop, or an open system, such as a personal hydration system. | 06-03-2010 |