Solar thermal panel and method for producing water

A solar thermal panel for producing water, comprising

• a frame,
• a reflective solar concentration surface which is secured to the frame having a solar focusing axis, at which the solar concentration surface concentrates incident solar rays,
• a heat exchanger which is positioned at the solar focusing axis and comprising a container, the container comprising
• an ambient humidity desiccator material,
• at least one opening,
• a first valve which is positioned at the at least one opening and which is selectively actuatable by moving from an open configuration to a closed configuration so as to selectively and reversibly allow a fluid-dynamic connection between the desiccator material and surrounding ambient air wherein the desiccator material is arranged in accordance with a multi-layered arrangement.

A solar thermal panel for producing water, comprising

• a frame,
• a reflective solar concentration surface which is secured to the frame having a solar focusing axis, at which the solar concentration surface concentrates incident solar rays,
• a heat exchanger which is positioned at the solar focusing axis and comprising a container, the container comprising
• an ambient humidity desiccator material,
• at least one opening,
• a first valve which is positioned at the at least one opening and which is selectively actuatable by moving from an open configuration to a closed configuration so as to selectively and reversibly allow a fluid-dynamic connection between the desiccator material and surrounding ambient air, wherein the container comprises at least one housing which is made from woven/nonwoven fabric and which is provided to contain the desiccator material.

A solar thermal panel for producing water, comprising

• a frame,
• a reflective solar concentration surface which is secured to the frame having a solar focusing axis, at which the solar concentration surface concentrates incident solar rays,
• a heat exchanger which is positioned at the solar focusing axis and comprising a container, the container comprising
• an ambient humidity desiccator material
• at least one opening,
• a first valve which is positioned at the at least one opening and which is selectively actuatable by moving from an open configuration to a closed configuration so as to selectively and reversibly allow a fluid-dynamic connection between the desiccator material and surrounding ambient air wherein the desiccator material comprises respective desiccating elements which are arranged in a plurality of successive desiccation zones in an advance direction of an air flow.

A solar thermal panel for producing water, comprising

• a frame,
• a reflective solar concentration surface which is secured to the frame having a solar focusing axis, at which the solar concentration surface concentrates incident solar rays,
• a heat exchanger which is positioned at the solar focusing axis and comprising a container, the container comprising
• an ambient humidity desiccator material,
• at least one opening,
• a first valve which is positioned at the at least one opening and which is selectively actuatable by moving from an open configuration to a closed configuration so as to selectively and reversibly allow a fluid-dynamic connection between the desiccator material and surrounding ambient air further comprising a gap which is contained between the heat exchanger and the container, which comprises channels which are arranged in a radial direction with respect to a longitudinal axis of the container and which are formed so as to allow the free passage of water vapor when it is desorbed by the desiccator material.

A method for producing water from ambient humidity, the method comprising:

• circulating forced air comprising humidity in a heat exchanger by means of a forced air circulation device, the heat exchanger comprising a desiccator material which is suitable for retaining a portion of the ambient humidity contained in the circulating air,
• heating, by means of a solar concentration thermal panel comprising the heat exchanger, the desiccator material to a temperature greater than 100° C.,
• evaporating water vapor from the desiccator material,
• condensing the evaporated water vapor by cooling on at least one wall of the heat exchanger and collecting it in a collection device, wherein the air is circulated in the heat exchanger for a time of 12 hours, during the day, and water vapor is evaporated for a time of 12 hours, during the night.