Abstract: The apparatus described herein uses a disc wafer-type rotor featuring channels disposed around its circumference and around the interior circumference of the rotor housing specifically to induce cavitation. The channels are shaped to control the size, oscillation, composition, duration, and implosion of the cavitation bubbles. The rotor is attached to a shaft which is driven by external power means. Fluid pumped into the device is subjected to the relative motion between the rotor and the device housing, and exits the device at increased temperature. The device is thermodynamically highly efficient, despite the structural and mechanical simplicity of the apparatus. Such devices accordingly provide efficient, simple, inexpensive, and reliable sources of distilled potable water for residential, commercial, and industrial use, as well as the separation and evaporation of other liquids.

Abstract: A burn box includes a font, a rear, a first and a second side, a lower, and an upper interior surface, as well as a first push member, a first coupler, and a first torque member. The first push member includes a first end, a second end, and a first coupler portion. The first coupler pivotally couples the first coupler portion to the first interior surface. The second end is vertically intermediate the first end and the lower interior surface. The first torque member provides a first torque to the first push member. When the first torque is provided to the first push member, the first push member rotates about a first rotational axis. The first rotational axis is through the first coupler portion of the first push member. The first rotational axis is parallel to the longitudinal axis. The second end rotates toward the second side interior surface.

Abstract: A combustion burner for a boiler includes: an inner cylinder defining a fuel supply passage for supplying fuel; an outer cylinder surrounding the inner cylinder and defining an air supply passage between the inner cylinder and the outer cylinder; and a swirler in the air supply passage, the swirler being configured to swirl air in the air supply passage. The swirler includes a plurality of blades radially disposed between the inner cylinder and the outer cylinder, the plurality of blades extending from an air-supply side toward a combustion-space side of the air supply passage, and each of the plurality of blades having, at least on an inner cylinder side of the blade, a section with a thickness varied in a burner axial direction, the thickness being smaller at an edge portion on the combustion-space side than at a maximum-thickness section of the blade.

Abstract: A domestic boiler preheater includes a flue box having a combustion gas inlet to receive hot combustion gas from a boiler, and a combustion air inlet to receive air for combustion in a boiler. The preheater further includes a condenser having a mains cold water inlet and a mains water outlet arranged such that mains water flows through the condenser prior to being supplied to a boiler combustion chamber. The condenser further includes a central heating water return and a central heating water flow outlet arranged such that central heating water flows through the condenser prior to being supplied to the boiler combustion chamber. The condenser further includes connections that enable the condenser to be connected to preheated fluid supply pipework from a source of preheated fluid, the preheated fluid having fluid heated by heat from at least one of the combustion gas and a renewable energy source.

Abstract: A combination stove top cover and serving tray is provided. The device comprises a cover body having a planar surface that is adapted to cover the upper surface of a stove top, thereby providing a flat, clean surface upon which to place other items, or to otherwise shroud the burners of the stove top. Around the perimeter of the planar surface is a raised wall extending substantially perpendicularly upward therefrom. The raised wall has an upper edge terminating in a common plane that is offset from the planar surface. The upper edge includes a gasket affixed therearound, which comprises a non-marring material such as rubber, plastic, or similar elastomeric material. Handles are provided along opposing raised walls of the device, while the underside of the planar surface provides a recessed, flat surface. When not covering a stove top, the device may be inverted and function as a serving tray.

Abstract: A material is utilized with an electropositive metal. This can be used as post-oxyfuel process for oxyfuel power stations. Here, an energy circuit is realized by the material utilization. An electropositive metal, in particular lithium, serves as energy store and as central reaction product for the conversion of nitrogen and carbon dioxide into ammonia and methanol. The power station thus operates without CO2 emissions.

Abstract: Method for manufacturing a gas burner of the type comprising a cup, provided with at least one tubular tapered part of a mixer with axial Venturi effect, and shaped to couple with a burner head provided with at least one flame-spreader, wherein said cup is made in a single piece by casting or die-casting in an apposite mold.

Abstract: A burner device for a gas turbine with a burner body, wherein the burner body has an axial end face, a first supply channel having a first opening in the axial end face, and a burner end element arranged at the axial end face. The burner end element has a first plenum chamber coupled to the first opening of the first supply channel, such that a first fluid is feedable from the first supply channel to the first plenum chamber. The burner end element further has a lattice structure with a plurality of interconnected pores, wherein the first plenum chamber is coupled to the lattice structure for feeding the first fluid into the lattice structure. The lattice structure forms a part of a burner surface which points to a burning chamber of the gas turbine such that a fluid connection between the burning chamber and the lattice structure is formed.

Abstract: Provided is a burner including a burner head to receive a mixed gas; and a burner cap to cover the burner head, wherein the burner head includes an outer wall having a plurality of first flame holes at which a flame is generated, an inner wall located at an inside of the outer wall and having a plurality of second flame holes at which a flame is generated, and a mixed gas chamber defined between the outer wall and the inner wall, and the burner cap includes a distribution guide to guide a flow of the mixed gas so that the mixed gas introduced into the mixed gas chamber is evenly distributed in the mixed gas chamber.

Abstract: A vapor extractor device includes a vapor extractor hood, and a drive motor for retracting and extending the vapor extractor hood. The drive motor is hereby controlled to reduce a retraction speed of the vapor extractor hood from a first predetermined retraction position, when the vapor extractor hood is retracted.

Abstract: An orifice 26 is provided in an air supply passage 5a of a warm air heater 100, and a differential pressure sensor 28 detects differential pressure ?p between front and rear of the orifice 26 in the air supply passage 5a. Rotation speed of the combustion fan 24 is corrected on the basis of the differential pressure ?p detected by the differential pressure sensor 28.

Abstract: A method (100) for manufacturing a thermal absorber for a solar thermal collector includes arranging (120) a substrate of the thermal absorber on a vacuum coating line and depositing (160) by way of a physical vapour deposition on the substrate that is arranged on the vacuum coating line layers configured to absorb light.

Abstract: A compact heat exchanger suitable for use in a forced air furnace for a recreational vehicle includes a multi-turn coil having linear segments interposed between bends. The coil is formed from a monolithic tube with portion of the tube being expanded to vary the diameter.

Abstract: A cooking grill for improved cooking of pizzas and other foods includes a base portion, a cooking grate supported on the base portion, and a lid hingedly-attached to the base and movable between an open position and a closed position in which a substantially-enclosed cooking chamber is defined between the base portion/cooking grate and the lid. The lid is specially-configured to define a window therein, for admitting passage into the cooking chamber along an entrance pathway extending horizontally from the window. The lid is specially-configured so that the window remains open and unobstructed while the lid is in a closed position. A handle is joined to the lid in a position outside of the entrance pathway, so that it does not interfere with insertion of pizza/foods into, or removal of pizza/foods from, the cooking chamber while the lid remains in the closed position.

Abstract: A cooking appliance includes a case, a cooktop at an upper part of the case, including a heating source, a cavity in the case, including a cooking chamber for cooking foods, a steam generator receiving heat from the heating source to generate steam, and a steam flow part having one end connected to the steam generator and another end connected to the cooking chamber to guide the steam generated from the steam generator to the cooking chamber.

Abstract: A method for operating a furnace system includes initiating a start sequence comprising starting an inducer fan operative to induce an air flow through a burner assembly, a heat exchanger portion and a collector portion, determining whether an air pressure in the collector portion is above a first threshold value, starting a furnace ignition sequence including providing fuel to the burner assembly, igniting a fuel and air mixture and starting an ignition timer responsive to determining that the air pressure in the collector portion is above the first threshold value, determining whether the ignition timer has expired, determining whether the air pressure in the collector portion is above a second threshold value responsive to determining that the ignition timer has expired, and stopping the provision of fuel to the burner assembly responsive to determining that the air pressure in the collector portion is not above the second threshold value.

Abstract: An illumination device for a cooking zone element is provided for a cooking hob which is covered by a transparent panel. The illumination device is provided for a cooking zone element with a central cutout in a central portion of said cooking zone element. The illumination device includes at least one diffuser screen arranged or arrangeable in an upper portion of the central cutout of the cooking zone element and parallel to the transparent panel of the cooking hob. The illumination device includes at least one light source element arranged or arrangeable below the central cutout of the cooking zone element. The illumination device includes an optical lens enclosing an upper portion of the light source element. Further, the present invention relates to a corresponding cooking zone element and cooking hob.

Abstract: A linear Fresnel light concentrating device with high multiplying power, including a reflector field and a receiving unit, where the reflector field includes a plurality of arrays of one-dimensional linear convergence reflector strips; the linear receiving unit is arranged parallel to the reflector strips, and is provided with a secondary optical light concentrating unit inside, the height value of the receiving unit exceeds half of the width value of the reflector field, so as to obtain a relatively high primary convergence light concentrating multiplying power and secondary convergence light concentrating multiplying power, thereby realizing a high total convergence light concentrating multiplying power. High multiplying power light concentration in low cost can be achieved, while the severe problem of low light concentration efficiency caused by extinction, tolerance rate and shading rate and the problem of inconvenience in repair and maintenance of the device are solved.

Abstract: The present invention relates to an improved solar energy concentrating system. The system comprises a dual axis sun tracking paraboloid dish collector on a polar mount, with a re-reflecting mirror in top of the paraboloid dish, which reflects the concentrated solar irradiation into an opening in the paraboloid dish into a light pipe and with a movable third mirror redirects the light into a second light pipe along the polar axis, which with a fourth fixed mirror, sends the concentrated solar irradiation into a third light pipe to the cavity receiver. The invention replaces the need of flexible connectors to accommodate the movement of the mirror, with a combination of mirrors and light pipes, transferring the solar irradiation to a cavity-receiver. Dual axis tracking systems can capture more solar energy, on a more constant basis throughout the day and the year, and by reflecting directly into the cavity-receiver, thermal losses are minimized.

Abstract: The underlying invention in particular is directed to a gas cooktop (1) comprising a cooking area with at least one concentric gas burner (2, 3), wherein at least one of the gas burners (3) of the cooking area is mounted at an off-center position to a platform (4, 7, 16) rotatably attached to the gas cooktop (1) within the cooking area, wherein the platform (4) is mechanically coupled to a drive arrangement in which an actuator is mechanically coupled via a transmission with the platform (4) so as to enable remote actuation of rotation of the rotatable platform (4) via the drive arrangement.