Abstract: Devices, systems, and methods are provided for optical device validation. For example, a system may comprise an optical device operable to emit or absorb light, wherein the optical device comprises a lens having an outer surface. The system may comprise a camera positioned in a line of sight of the optical device, wherein the camera is operable to capture one or more images of the optical device. The system may comprise a computer system in communication with to the camera and operable to calculate a validation score for a captured image of the one or more images and to validate the optical device based on a validation state generated using the calculated validation score.

Abstract: A fluid channel formed with generally triangular-shaped performance enhancement features is disclosed. The fluid channels may be incorporated into heat exchanger or humidifier devices, the performance enhancement features generally having heat transfer and/or mass transfer performance enhancement applications. The heat transfer or mass transfer enhancement features are formed along the inner surfaces of the fluid flow passages of either the heat exchanger or humidifier plates and generally have sharp leading edges that create vortices in the fluid flowing through the passages. The heat or mass transfer enhancements protrude out of the inner surface of the fluid flow passages while leaving the outer surface of the fluid channel free of perforations. Alternatively, heat or mass transfer enhancements may be formed on separate inserts that are affixed to the inner surface of the fluid flow passages.

Abstract: A heat exchanger system containing a heat exchanger coupled to a fitting. The fitting contains a tube having a heat exchanger attachment end and an opposing end. The fitting further having a sleeve, having a sleeve body connecting a first end of the sleeve to an overlapping end. The first end of the sleeve being coupled to an outer surface of the tube and the sleeve body and the second end of the sleeve being spaced from the outer surface of the tube defining a space for receiving a conduit and adapted for coupling the fitting to the conduit. Also described is a fitting that can be attached to a conduit.

Abstract: A fluid channel formed with generally triangular-shaped performance enhancement features is disclosed. The fluid channels may be incorporated into heat exchanger or humidifier devices, the performance enhancement features generally having heat transfer and/or mass transfer performance enhancement applications. The heat transfer or mass transfer enhancement features are formed along the inner surfaces of the fluid flow passages of either the heat exchanger or humidifier plates and generally have sharp leading edges that create vortices in the fluid flowing through the passages. The heat or mass transfer enhancements protrude out of the inner surface of the fluid flow passages while leaving the outer surface of the fluid channel free of perforations. Alternatively, heat or mass transfer enhancements may be formed on separate inserts that are affixed to the inner surface of the fluid flow passages.

Abstract: A heat exchanger system containing a heat exchanger coupled to a fitting. The fitting contains a tube having a heat exchanger attachment end and an opposing end. The fitting further having a sleeve, having a sleeve body connecting a first end of the sleeve to an overlapping end. The first end of the sleeve being coupled to an outer surface of the tube and the sleeve body and the second end of the sleeve being spaced from the outer surface of the tube defining a space for receiving a conduit and adapted for coupling the fitting to the conduit. Also described is a fitting that can be attached to a conduit.