Abstract: A dual evaporative pre-cooling system is installed packaged air conditioning units. The dual evaporative pre-cooling system includes an evaporative media disposed in a housing through which incoming condenser air flows. A water distribution device is disposed above the evaporative media. A sump and a pump are located below the evaporative media to recirculate water through the water distribution device and a ventilation air pre-cooling coil. A plurality of pipes connect, and allow circulation of, a water source discharged from the pump through the ventilation air pre-cooling coil, and to the water distribution device.

Abstract: An indirect/direct evaporative cooling system for cooling air for comfort purposes includes a single, variable speed blower positioned below an indirect evaporative cooling stage and a direct evaporative cooling stage. A first portion of the blower discharge is directed horizontally through the indirect evaporative cooling stage, where it is cooled without the addition of moisture thereto, and is then further cooled in the direct evaporative stage prior to being supplied to a building. A second portion of the blower discharge is directed vertically through the indirect evaporative cooling stage and serves to cool the first portion as the first portion travels through the indirect stage. The indirect and direct cooling stages share a common sump for collecting water drained therefrom. The indirect stage includes a drip edge to keep drain water out of the flow of the first portion. A stud-straddle supply duct is attached to the direct cooling stage to facilitate installation of the system in wood-framed walls.

Abstract: A combined refrigerator-water heating system providing one or more insulated food storage compartments, includes an insulated water storage compartment, a refrigeration system including a compressor, an evaporation heat exchanger configured to cool the food storage compartment(s), a condenser configured to heat the water storage compartment, a flow restriction/expansion device, piping connecting the compressor, condenser, expansion device and evaporation in a series flow loop, a resistance electric heating element configured to heat the water storage compartment, and a control means to activate the compressor in response to cooling demand from the food storage compartment, and to activate the electric heating element in response to either heating demand from the water storage compartment or a time-of-day signal to bias resistance electric water heating operation toward times of off-peak electric use.

Abstract: A roofing system for a structure having a roof deck with upstanding edges about the perimeter of the roof deck, includes a waterproof membrane on the roof deck and extending from edge-to-edge. A reservoir is defined by the waterproof membrane and edges and may contain a liquid therein, but some embodiments may operate without the reservoir. At least one insulating panel is provided above the liquid reservoir and covers the waterproof membrane on the roof deck from edge-to-edge. A pump has an inlet within the reservoir and an outlet communicating with the surrounding environment for selectively spraying liquid from the reservoir or other source onto the external surface of the panel to cool the liquid in the reservoir. Drains in the panel provide communications between the external surface of the panel and the reservoir for permitting drainage of liquid on the external surface into the reservoir.

Abstract: A modular temperature controlling panel for location adjacent a rear side of a room surface and between spaced penetrable structural framing members for supporting the room surface includes: an insulating core having a contact surface for location adjacent the room surface and a non-contact surface opposite the room surface; a linear thermal source recessed within the core on the contact surface; a metallic sheet on the contact surface of the core for contacting the linear thermal source; and a spring retention device on the non-contact surface of the core for securing the core between the spaced framing members and for urging the contact surface towards the room surface.