Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

Abstract: A water recovery system includes a sorbing bed, a desorbing bed, a heat pump and a controller. The sorbing bed receives a first fluid stream and absorbs and/or adsorbs water from the first fluid stream. The desorbing bed is aligned with and thermally connected to the sorbing bed, and receives a second fluid stream and desorbs water to the second fluid stream. The heat pump is positioned between the sorbing bed and the desorbing bed and transfers heat from the sorbing bed to the desorbing bed. The controller distributes power to the heat pump to maintain an area near the outlet of the desorbing bed at a temperature greater than an area of the sorbing bed aligned with the area near the outlet of the desorbing bed. A method for recovering water from a fluid stream includes directing fluid streams through the described water recovery system.

Abstract: A rotary valve includes a housing including an inlet and an outlet. A drum is rotatably located in the housing and includes one or more fluid pathways to convey fluid flow between the inlet and the outlet. The rotary valve further includes a single-piece unitary drum seal having a portion located around a perimeter of a port of the one or more fluid pathways to seal between the drum and the housing. A drum seal assembly for a rotary valve includes a single piece, unitary drum seal disposed at a drum of the rotary valve. The drum seal has a portion extending around a perimeter of a port of one or more fluid pathways of the drum to seal between the drum and an inner wall of a housing. The drum seal assembly further includes an energizer to urge the drum seal into contact with the housing.

Abstract: A water recovery system includes a sorbing bed, a desorbing bed, a heat pump and a controller. The sorbing bed receives a first fluid stream and absorbs and/or adsorbs water from the first fluid stream. The desorbing bed is aligned with and thermally connected to the sorbing bed, and receives a second fluid stream and desorbs water to the second fluid stream. The heat pump is positioned between the sorbing bed and the desorbing bed and transfers heat from the sorbing bed to the desorbing bed. The controller distributes power to the heat pump to maintain an area near the outlet of the desorbing bed at a temperature greater than an area of the sorbing bed aligned with the area near the outlet of the desorbing bed. A method for recovering water from a fluid stream includes directing fluid streams through the described water recovery system.