US 12,372,254 B2
Heat pump-based water harvesting systems
Ievgen Kapustin, Newark, CA (US); and David S. Kuo, Newark, CA (US)
Assigned to Water Harvesting, Inc., Fremont, CA (US)
Filed by Water Harvesting, Inc., Newark, CA (US)
Filed on Aug. 5, 2022, as Appl. No. 17/881,915.
Claims priority of provisional application 63/236,173, filed on Aug. 23, 2021.
Prior Publication US 2023/0063572 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 53/04 (2006.01); B01D 53/06 (2006.01); B01D 53/26 (2006.01); B01J 20/22 (2006.01); B01J 20/34 (2006.01); F24F 3/14 (2006.01); F24F 11/00 (2018.01); G05D 22/02 (2006.01); F24F 6/00 (2006.01)
CPC F24F 3/1423 (2013.01) [B01D 53/0438 (2013.01); B01D 53/06 (2013.01); B01D 53/261 (2013.01); B01J 20/226 (2013.01); B01J 20/3483 (2013.01); F24F 11/0001 (2013.01); F24F 11/0008 (2013.01); G05D 22/02 (2013.01); B01D 2253/204 (2013.01); B01D 2257/80 (2013.01); B01D 2259/40098 (2013.01); F24F 2006/008 (2013.01); F24F 2011/0002 (2013.01)] 19 Claims
OG exemplary drawing
 
18. A system, comprising:
a heat pump having a hot side heat exchanger and a cold side heat exchanger;
an adsorption unit comprising a sorbent module, said sorbent module contains one or more sorbents, said adsorption unit disposed physically separate from said heat pump;
a desorption chamber connected to or positioned in close proximity to said hot side heat exchanger of said heat pump;
a condensation chamber encompassing or positioned in close proximity to said cold side heat exchanger of said heat pump; and
at least one desorption-condenser recirculation fan configured to (i) transfer water desorbed from said sorbent module in said desorption chamber to said condensation chamber, and (ii) recirculate remaining desorbed water from said sorbent module in the condensation chamber back into the desorption chamber.