Atmospheric water harvesting device and method

A water harvesting apparatus, comprising:

• a plurality of water harvesting units each including a cylindrical vessel having a central axis, the vessel including:
• an at least partially fluid-permeable first cylindrical sidewall defining a vessel inlet;
• an at least partially fluid-permeable second cylindrical sidewall defining a vessel outlet;
• a fluid impermeable annular base, the annular base including a first locating formation disposed on an external surface of the annular base;
• a fluid impermeable annular lip, the annular lip including a second locating formation disposed on an external surface of the annular lip;
• and
• a charge of desiccant material configured to adsorb water;
• an outer housing having a volute configuration, the outer housing including:
• an air inlet channel in fluid communication with the vessel inlet of each water harvesting unit of the plurality of water harvesting units, the air inlet channel having a volute configuration;
• and
• an air outlet in fluid communication with the vessel outlet of each water harvesting unit of the plurality of water harvesting units;
• wherein the first cylindrical sidewall and the second cylindrical side wall extend between the annular base and the annular lip to define a plenum space;
• wherein the second cylindrical side wall is disposed at least partially within the first cylindrical sidewall;
• wherein the first cylindrical sidewall includes a mesh lining and/or covering;
• wherein the first locating formation is configured to inter-engage with the second locating formation of an adjacent water harvesting unit;
• wherein the plurality of water harvesting units are disposed in the outer housing, arranged for rotation within the outer housing, and orientated such that the central axis of each of the plurality of water harvesting units is vertical;
• and
• wherein the plurality of water harvesting units are configured to be rotated with respect to the outer housing about a common central axis.