System for the treatment of water

A method for the treatment of water formed during an operation of at least one fuel cell of a vehicle, the method comprising:

• using a system having a cavity, a condenser and an underbody-side system outer wall,
• wherein an underbody of the vehicle is bounded by the system,
• wherein the condenser is arranged between the cavity and the underbody-side system outer wall,
• wherein the cavity is connected via an inlet to the at least one fuel cell,
• wherein water vapor originating from the at least one fuel cell flows into the cavity and is condensed by the condenser;
• and
• wherein, when the vehicle is in motion, the condenser is acted upon by air of an ambient airflow from underneath the vehicle and is cooled, the water condensed by the condenser is evaporated away from the condenser, and the condenser is cooled by evaporative cooling.

A system comprising:

• a vehicle including a fuel cell having a water outlet;
• a cavity fluidly coupled to the water outlet of the fuel cell to receive water generated within the fuel cell;
• a condenser coupled to the cavity, wherein the condenser is designed to condense water vapor which, originating from the fuel cell, flows into the cavity;
• a first porous wall that forms an outer wall of the cavity, that forms a first outer wall of the condenser, that separates the cavity from the condenser, and that allows water to move from the cavity to the condenser;
• a second porous wall that forms a second outer wall of the condenser, wherein the second porous wall is exposed to environmental air underneath the vehicle such that, when the vehicle is in motion, the environmental air cools the condenser, the water condensed by the condenser is evaporated away from the condenser, and the condenser is cooled by evaporative cooling;
• and
• an underbody-side system outer wall, wherein the condenser is arranged between the cavity and the underbody-side system outer wall.