Abstract: The present disclosure introduces a nozzle apparatus and method. In one embodiment, a spray nozzle apparatus is described. The spray nozzle apparatus includes a plurality of flow channels formed by the combination of a: sprayhead, a major element, and a minor element. The sprayhead may have a plurality of holes. The major element is retained within the sprayhead by a nozzle nut and spring, allowing a first annular gap to form between the sprayhead and the major element. The minor element is retained within the major element by a second nozzle nut and second spring, allowing a second annular gap to form between the major element and the minor element. The minor element may have an axial hole. Other embodiments also are described.

Abstract: The present disclosure introduces a nozzle apparatus and method. In one embodiment, a spray nozzle apparatus is described. The spray nozzle apparatus includes a plurality of flow channels formed by the combination of a: sprayhead, a major element, and a minor element. The sprayhead may have a plurality of holes. The major element is retained within the sprayhead by a nozzle nut and spring, allowing a first annular gap to form between the sprayhead and the major element. The minor element is retained within the major element by a second nozzle nut and second spring, allowing a second annular gap to form between the major element and the minor element. The minor element may have an axial hole. Other embodiments also are described.

Abstract: The present disclosure introduces a nozzle apparatus and method. In one embodiment, a spray nozzle apparatus is described. The spray nozzle apparatus includes a plurality of flow channels formed by the combination of a: sprayhead, a major element, and a minor element. The sprayhead may have a plurality of holes. The major element is retained within the sprayhead by a nozzle nut and spring, allowing a first annular gap to form between the sprayhead and the major element. The minor element is retained within the major element by a second nozzle nut and second spring, allowing a second annular gap to form between the major element and the minor element. The minor element may have an axial hole. Other embodiments also are described.

Abstract: The present disclosure introduces a nozzle apparatus and method. In one embodiment, a spray nozzle apparatus is described. The spray nozzle apparatus includes a plurality of flow channels formed by the combination of a: sprayhead, a major element, and a minor element. The sprayhead may have a plurality of holes. The major element is retained within the sprayhead by a nozzle nut and spring, allowing a first annular gap to form between the sprayhead and the major element. The minor element is retained within the major element by a second nozzle nut and second spring, allowing a second annular gap to form between the major element and the minor element. The minor element may have an axial hole. Other embodiments also are described.

Abstract: An electrode arrangement for electrohydrodynamic (EHD) enhancement of heat and mass transfer is disclosed. Electrodes of alternating polarity are embedded within a nonconductive heat transfer wall material and are connected to a high voltage source at either end of the heat transfer wall material where the heat transfer wall material passes through a tube sheet, fitting or other confinement. When voltage from the high voltage source is applied to the alternating electrodes, electric field gradients are created on both the interior and exterior heat transfer surfaces of the heat transfer wall material. Regions of intense electric field gradient reside in close proximity to both heat transfer surfaces, thus when nonconductive fluids pass over the heat transfer surfaces, bubbles are repelled from the regions of strong electric field gradients above the electrodes and additional fluid is attracted into these regions.

Abstract: A device for applying an evaporation-inhibiting film to an exposed liquid surface of a liquid body, which includes an impeller disposed below and coplanar with the exposed liquid surface; means for rotating said impeller; means for delivering the evaporation-inhibiting film to the exposed liquid surface at a location immediately above said impeller; and means for bringing liquid from beneath the exposed surface of the liquid body to above said impeller.

Abstract: A reactor control system for controlling the reactivity of the core of a fission-type nuclear reactor is provided. The control system includes a reservoir containing a control gas having a high neutron cross section. At least one conduit which communicates with the reservoir to provide a fluid passage which extends at least partially into the core of the reactor. A system is provided for controlling the pressure of the control gas in the conduit.