Abstract: A louver assembly is disclosed for use in a heat exchanger associated with a liquid basin. The louver assembly is made of a plurality of generally vertically oriented, non-corrugated sheets attached to adjacent corrugated sheets of material. Spaces between the corrugations and the non-corrugated sheets form air passageways extending downwardly through the louver assembly from an inlet face to an outlet face of the louver assembly. The corrugated and non-corrugated sheets have a V-shape in a top plan view defined by two acute angles X and Y on one surface of the sheets with respect to a transverse reference plane, resulting in a vertex angle Z on an opposite surface of the sheets of about 120° to about 140°. The V-shape of the sheets provides each of the corrugations and air passageways with a single inlet portion and a single outlet portion.

Abstract: A fin is disclosed for use in a heat exchanger coils including tube segments extending through the fin. The fin includes a corrugated sheet of material having a plurality of major corrugations, about 8 to about 24 corrugations per inch (2.54 cm), each major corrugation being a peak or a valley with an amplitude “h” at the peaks or the valleys perpendicular to a reference major plane equally bisecting the major corrugations, and a width “w”; a plurality of orifices; a collar perpendicular to the reference major plane and extending from the sheet around each of the orifices; and a generally flat area that is generally parallel to or generally coextensive with the reference major plane and that surrounds each collar. The major corrugations have angled walls extending from at least one of the peaks and valleys to the generally flat areas adapted to create a vortex when air travels over the fin. A ratio of “h” to “w” is about 0.32 to about 0.7.

Abstract: An evaporative cooler and method of operation is provided in which the cooler includes a liquid distributor, a body having a surface for receiving liquid from the distributor, an air moving device for generating a flow of air over the surface of the body, a heat transfer working fluid conduit having a surface arranged to receive substantially all of the liquid from the body and a liquid recirculating mechanism to recirculate the liquid from the conduit surface to the body surface. In an embodiment the body occupies a plan area larger than the plan area occupied by the conduit. In an embodiment, the conduit is located outside of the flow of air. In an embodiment, the velocity of the liquid is increased after it leaves the body and before it engages the conduit.

Abstract: A cellular drift eliminator for removing mist from a mist-laden gas stream includes a plurality of blades with a spacer element interspersed between every two blades. Both the blades and spacer elements have a longitudinally undulating shape with at least one undulation transverse to the direction of travel of the stream passing through the eliminator. Each spacer element has corrugations oriented transverse to the spacer element undulation. Each corrugation has two side walls connecting a flattened apex extending from the front face of the spacer elements and a flattened valley extending from the rear face of the spacer element. Each spacer element has flat planar portions formed at its lower edge in the regions of the flattened apices and valleys of the corrugations and cut portions extending from the lower edge in the regions of the side walls of the corrugations.

Abstract: An increased capacity thermal storage apparatus for forming frozen storage liquid during a storage cycle is provided. The apparatus comprises a container for holding a pool of storage liquid. A coil assembly having a plurality of tubes is immersed in the pool storage liquid. The tubes are adapted to transport a refrigerant therethrough to create a tubular envelope of frozen storage liquid around each tube during the storage cycle. Each tube has a non-circular cross-section with a horizontal dimension and a vertical dimension. The vertical dimension is greater than or equal to the horizontal dimension. The tubes are oriented generally horizontally and are arranged in a plurality of spaced apart, generally vertical rows. Neighboring tubes in adjacent vertical rows are horizontally spaced apart sufficiently such that unfrozen, generally vertical passageways remain between the envelopes of frozen storage liquid.

Abstract: The present invention is directed toward an ice-on-coil (IOC) thermal storage coil system and method utilizing "deep-tank" technology and dimensional relationship of coil height to coil width wherein the coil serpentine's height (vertical tube dimension) is greater than the width (the horizontal dimension), and wherein all manifold and header joints are above, or just below the water surface of the tank, easily visible and accessible for maintenance, assembly, leak-checking or repair. Another aspect of the present ice-on-coil (IOC) thermal storage coil system and method is that, in some embodiments, the ice-coil tubes are never horizontal anywhere in the full coil height, but instead vertical tubes or "near-horizontal" sloped tubes are utilized which slope in an upward direction to facilitate air removal during filling of the coil with the coolant mixture.

Abstract: A coil assembly for use in a heat exchanger having air flowing in a predetermined direction. The coil assembly comprises a plurality of parallel linear tubes, a plurality of return tubes interconnecting the linear tubes, and a plurality of fins. Each linear tube has a central portion with an elliptical cross-section and two end portions with round female sockets having circular cross-sections. Each return tube has two end portions with circular cross-sections. Each end portion of a return tube fits into a round female socket of a linear tube regardless of the orientation of the major axes of the linear tubes. The major axis of the elliptical cross-section resides at an oblique angle with respect to the direction of air flow. Each fin comprises a planar sheet of a heat-conductive material with a plurality of holes. The central portion of a linear tube extends through each hole. Each fin securely contacts each linear tube extending therethrough such that heat transfer therebetween is enhanced.

Abstract: A coil assembly for use in a heat exchanger having air flowing in a predetermined direction. The coil assembly comprises a plurality of parallel linear tubes, a plurality of return tubes interconnecting the linear tubes, and a plurality of fins. Each linear tube has a central portion with an elliptical cross-section and two end portions with round female sockets having circular cross-sections. Each return tube has two end portions with circular cross-sections. Each end portion of a return tube fits into a round female socket of a linear tube regardless of the orientation of the major axes of the linear tubes. The major axis of the elliptical cross-section resides at an oblique angle with respect to the direction of air flow. Each fin comprises a planar sheet of a heat-conductive material with a plurality of holes. The central portion of a linear tube extends through each hole. Each fin securely contacts each linear tube extending therethrough such that heat transfer therebetween is enhanced.

Abstract: This invention relates to a gas and liquid contact body comprising a plurality of adjacent, vertically oriented corrugated sheets where the corrugations extend downwardly at an oblique angle to the horizontal. The bottom portion of the corrugations is cut on an oblique angle along the width of the sheet to form a beveled bottom edge having peaks and valleys along the width of the sheet. Adjacent sheets to the contact body are oriented in front-to-front and rear-to-rear orientation such that the corrugations of adjacent sheets cross at intersections of their apices, and bottom portions form a regular, ordered pattern when viewed from the bottom.