Abstract: The invention is directed to a heating assembly comprising, in combination, a main radiator (1) for fluid flow and an electric radiator. The latter is disposed on one face of the main radiator (1) defining its general plane, and consists of a plurality of independent heating elements (6). Each of these heating elements (6) comprises an elementary electrical heating body (7), having connecting means (31, 31?) for connection to an electrical power source, and a finned element (8). These heating elements (6) are assembled on a connecting structure of the electric radiator on the face of the main radiator (1).

Abstract: Highly efficient solar fans used in portable and built in configurations. A ventilation fan can be used for exhausting air out from underneath roofs, and/or for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to approximately 500 rpm. The approximately 15 inch diameter twisted blades can be premolded on a hub that together form a single molded unit of plastic. They can also be fabricated using metal. The unit can be mounted in an exhaust outlet having a conical diffuser on or adjacent to a roof. Another embodiment allows for portable solar powered fans used anywhere there is a need for ventilation and moving of air. The blades can rotate by a solar powered motor, where the blades and motor can generate up to approximately 1040 cfm while using no more than approximately 16 Watts. Portable fans can be powered by solar panels. One embodiment has solar panels mounted to a handtruck.

Abstract: A method for reducing outside air inflow required for aircraft passenger cabin air quality is provided. The method determines when passenger cabin air quality is the driving outside air inflow requirement and reduces the outside air inflow to that required for passenger cabin air quality. In one embodiment, there is provided a method for reducing outside air inflow required for aircraft passenger cabin air quality using a fixed minimum outflow valve open area setpoint. In another embodiment, there is provided a method for reducing outside air inflow required for aircraft passenger cabin air quality using calculations that are repeated at regular intervals and using a mathematical function relating an outside air inflow requirement to a set of independent variables.

Abstract: The invention relates to a method of heating a motor vehicle cabin by means of a circuit (20) for circulating a cooling fluid for cooling an engine (10) and including a pump (23), an air heater unit (22), and a heat exchanger (21) disposed in an exhaust system (15) that is also provided with a depollution assembly (16). The exhaust gas is directed towards the heat exchanger (21) or towards a bypass duct (18) downstream from the depollution assembly (16) as a function of engine operating conditions, of the outside temperature, of the heating temperature requested in the vehicle cabin, and of the temperature of the engine cooling fluid. The invention applies more particularly to direct injection diesel engines.

Abstract: A heat source unit includes a compressor, a heat-source-side heat exchanger, an outdoor blower, and a controller for electric devices. A hydrothermal exchange unit accommodates water heat exchangers, water pipes, pumps and a controller, and is connected to the heat source unit via refrigerating pipes and electric wiring. A tank unit has tanks for storing hot water obtained as a result of heat exchange by the water heat exchangers. The hydrothermal exchange unit has a housing. The front, rear, upper, left and right sides of the housing are covered with panels. A bottom plate for the housing is disposed a predetermined distance above the lower end of the housing. The housing accommodates the hydrothermal exchange unit, and a space below the bottom plate of the housing accommodates connectors for the water pipes and refrigerant pipes. This completely prevents freezing of the water pipes, makes use-side units compact, and improves operation efficiency.

Abstract: Methods and devices for controlling multi-stage boiler systems. In one illustrative embodiment, the number of stages to be used is determined in a staging control sequence in response to a heating load, and in some cases, the individual stages are modulated to meet a heating load. In some embodiments, the staging control sequence may include observation of both heating load and the rate of change of the heating load. In another illustrative embodiment, the staging control compares a measured temperature to a setpoint and monitors changes in the measured temperature to make staging decisions. Various control methods are also provided to help achieve improved stability and efficiency, as desired.

Abstract: The Flush Mount or Drop In Wood And/Or Wood Composite Vent is a floor register vent that is supported by an attached rigid plate, preferably metal, with matching vent slots to allow for manufacturing vents in materials including but not limited to prefinished flooring materials with the grain running the same way lengthwise and allows use of thin materials.

Abstract: A rotary shutter actuator comprising a retainer, a rotatable member, a plurality of shutters, and a dial. The rotatable member is supported by the retainer, and the plurality of shutters are swivelably coupled to the retainer. The dial has an opening and is operably connected to each of the shutters and the rotatable member. Thus, as the dial is rotated, the shutters move to and from a fully open and closed position. The dial also causes the rotatable member to rotate with respect to the retainer.

Abstract: A cascade unit for a heating system with two or more heating boilers, in particular condensing boilers, with a hydraulic shunt which is connected on the one hand with the inlet flows and return flows of all heating boilers and on the other hand with at least one heating circuit inlet flow and heating circuit return flow each, with the cascade unit furthermore comprising one each of the essentially horizontally extending boiler inlet flow header and boiler return flow manifold, the header and the manifold being connected with the hydraulic shunt, and the header and the manifold each being designed with prepared connecting nozzles fittingly placed for a group of two or more heating boilers for the connection of the heating boiler inlet flows and the heating boiler return flows. The cascade unit forms at least one self-supporting support frame on which at least one of the heating boilers is mountable.

Abstract: A method for controlling air intake into an air conditioned enclosure includes generating a plurality of sensor output voltages using a NOx sensor. A NOx voltage ratio is calculated from the sensor output voltages. A determination is made when the NOx voltage ratio one of equals and exceeds a NOx threshold. The NOx voltage ratio is reset to a unitary value for a predetermined length of time.

Abstract: Explosion vent apparatus is provided, which includes a vent support unit defining a vent opening adapted to be aligned with an area to be protected from an overpressure condition, a vent panel movably mounted on the support unit in a normal closed position blocking the outlet and movable through a first displacement away from its closed position to a first overpressure-relieving position upon application of an overpressure of one magnitude of pressure while allowing movement of the vent panel through a second and greater displacement to a second overpressure-relieving position upon application of a higher overpressure. The vent panel does not deform or rupture upon opening, and recloses after pressure relief, either under spring pressure when opened under a lower first pressure, or by a fluid actuated reclosing mechanism upon full opening of the vent panel under a higher second pressure.

Abstract: A method of operating a power delivery system that has at least one power cell includes directing air into the power cells to cool them, receiving the air from the cells, directing the air to a cooling system, and recirculating the cooled air to the power cells. Each cell may include an air intake, an air output, a water-cooled heat sink, and optionally a plurality of capacitor connectors and/or a circuit board. The air may be directed through the air intake to the air output so that air passes over the capacitor connectors and/or the circuit board before passing over the heat sink.

Abstract: An air register cover assembly (1) comprising a front panel (2) having a face and rear portion (18) and (19), at least one spacer (4) located on the rear portion (19) and a means for hanging the front panel (2) in front of an air duct (21). An alternate embodiment may include an air register housing (5) which is fitted within an air duct. The housing (5) includes housing openings (7) to permit air from an air duct (21) to be expelled. The front panel (2) may include an insulated backing (8) having spacers (4) attached thereto. When in use, the air register cover assembly (1) re-directs the air flow so as to be expelled around the front panel (2), rather than directly into a room. The use of the present invention not only circulates air within a room, but it also makes air registers more attractive.

Abstract: A crawlspace encapsulation system for encapsulating a crawlspace of a building. The system includes a substantially impermeable barrier layer disposed in the crawlspace and isolating at least a portion of the crawlspace from an outside atmosphere and an air circulation system located in the isolated portion.

Abstract: A wall mounted domestic combined heat and power appliance comprising housing (1) containing a prime mover to generate electrical power and heat output. At least one bracket (2) at each side of the housing mounts the housing to a wall (W). Each bracket comprises a main body which is elongate in a vertical direction and has a L-shape cross section. Each extremity of the L-shape cross section has an enlarged portion (22, 23), a first (23) of which provides a spacer between the main body and the housing, and a second (22) of which provides a spacer between the main body and the wall.

Abstract: A passive venting device for venting enclosures comprising a base member, an intermediate splash member including a diverter, and a top, dome-shaped member. In a preferred embodiment, the diverter may be molded as a single unit of manufacture with the base member. The venting device allows air and other gases to escape from within an enclosure to be vented while preventing the intrusion of moisture, such as rain or snow, into the enclosure.

Abstract: A controller automatically determines drive signals by testing an exhaust system, either immediately after installation or at selected times thereafter, to determine the drive signal values that correspond to each of one or more selected flow rates. The drive signals are stored. Thereafter, the controller uses the stored values of drive signals to control the exhaust system. This avoids problems with real time control such as drift or failure of sensors and such which are very common in commercial exhaust installations.

Abstract: A system and method for providing a substantially constant volume exhaust or ventilation air terminal system is shown for controlling exhaust and/or return airflow rates in a system having a central fan or ventilator. The system and method permits zone-by-zone or area-by-area airflow regulation or control in non-demand areas in response to a demand or call for ventilation in demand areas. In one embodiment, the system employs at least one constant airflow controller or regulator situated in a damper. Another embodiment shows a combination of a first constant airflow controller or regulator situated or mounted on a damper with a second constant airflow controller or regulator situated in a duct associated with the damper. In still another embodiment, a constant airflow controller or regulator is provided in a duct, and used in combination with a solid damper.

Abstract: An exhaust gas chimney, especially an exhaust gas chimney installed directly downstream of a gas turbine or downstream of the waste heat recovery boiler of a gas turbine, includes an inner shell formed as a metal tube and surrounded by a sound absorption ring filled with bulk material for sound absorption. The sound absorption ring is formed as a ring jacket provided with a lower end plate that slopes downward and is permanently joined with the inner shell of the chimney, and with an upper end plate that slopes upward toward the inner shell. Ribs are joined to the inner shell of the chimney inside the annular jacket.

Abstract: A storage control apparatus comprises a vertical logic board; and a cooling mechanism for cooling the logic board. This cooling mechanism is constituted such that air taken in from the front of the storage control apparatus travels to the rear side of the storage control apparatus and then rises up, this risen air rises further while cooling the vertical logic board, and the risen air is discharged from the rear of the storage control apparatus.