A workpiece support has a vessel having a top interior wall and a bottom interior wall. An interior cavity is defined between the top interior wall and bottom interior wall, wherein a support surface configured to support a workpiece. A plate is positioned within the interior cavity, dividing the interior cavity into a top cavity and a bottom cavity. The top and bottom cavities are fluidly coupled about a periphery of the plate. A first taper defined in one or more of the top interior wall and a top portion of the plate provides a substantially constant volume across a radial cross-section of the top cavity. A second taper defined in one or more of the bottom interior wall and a bottom portion of the plate provides a substantially constant volume across a radial cross-section of the bottom cavity. First and second ports fluidly couple the top and bottom cavities to respective first and second fluid channels.

Disclosed is a barrel-shaped component and a container and an electric motor housing based thereon. The barrel-shaped component comprises a hollow metal pipe (11), wherein two ends of the hollow metal pipe (11) are respectively provided with an inlet (12) and an outlet (13). The hollow metal pipe (11) continuously spirals around an axis to form a plurality of annular components (14) arranged in parallel, wherein the annular components (14) are welded and fixed to each other. A component of any shape and size can be processed by using a simple elbow mould, thereby improving the cooling effect, lowering the processing cost and the material cost, and increasing the rigidity of the whole component where the barrel has the same wall thickness.

In accordance with the present invention, there is provided a tubular heat exchanger wherein a central tube is employed to enclose an internal heated fluid which ascends inside the central tube. The heated fluid is then radially disbursed as it converges toward the internal surface of a top cover of the heat exchanger assembly, being forced outwardly under the top flange by the updraft force of the heated fluid, which forces the heated fluid downwardly apportioning the heated fluid around equally spaced axially arranged heat transfer tubes surrounded by an outer tube which are in sealed engagement with the top flange and attach at the bottom in sealing engagement with the exhaust collection manifold. The heated fluid descends around the tubes and enters an exhaust manifold exiting through an exhaust pipe. The heat transfer fluid enters a lower plenum and flows around the heat exchanger core into an upper plenum.

Embodiments of the present invention relate to compressed gas storage units, which in certain applications may be employed in conjunction with energy storage systems. Some embodiments may comprise one or more blow-molded polymer shells, formed for example from polyethylene terephthalate (PET) or ultra-high molecular weight polyethylene (UHMWPE). Embodiments of compressed gas storage units may be composite in nature, for example comprising carbon fiber filament(s) wound with a resin over a liner. A compressed gas storage unit may further include a heat exchanger element comprising a heat pipe or apparatus configured to introduce liquid directly into the storage unit for heat exchange with the compressed gas present therein.

The present invention provides a large-scale water heater with a telescoping tower having a tower with a storage area proximal to the bottom of the tower; a portion of the tower that telescopes vertically that is pre-filled with a packing media; a nozzle designed to distribute a fluid that is located above the packing media; a firing chamber with a proximal end in fluid communication with the tower; and a burner in fluid communication with the distal end of the firing chamber for combusting fuels.

A tubular heat exchanger employing radially arranged heat exchange tubes surrounding and attached to a center tube enclosing a heat source by an annular top flange attached to a removable top cover above the tube arrangement. The heat exchange tubes are connected at the bottom to an exhaust collection manifold which is in turn connected to an exhaust outlet pipe vented to the atmosphere. As heated fluid ascends inside the center tube, it is forced outwardly inside the top cover, apportioning the heated fluid into equally spaced radially arranged heat exchange tubes. The heated fluid descends inside the heat exchange tubes, disbursing heat outwardly through the walls of the heat exchange tubes into the ascending heat transfer fluid. The mostly cooled heated fluid is collected and recombined in the exhaust collection manifold and into the exhaust outlet pipe. The heat transfer fluid ascends above the top cover for final utilization.

The invention relates to a material and/or solid fuel which is produced from biomass. The material and/or fuel can be produced according to an apparatus and system for producing a fuel from a solid-liquid mixture of water and feed material with a carbon containing component, wherein the biomass forming the solid-liquid mixture is treated at a temperature of 160-300° C. at a pressure of at least 5 bar for a treatment duration of at least 2 hours and water formed by the chemical reaction is withdrawn from the reactor by a solid-liquid separation filtration device to increase a carbon fraction of the fuel.

A heat exchanger for exchanging heat between a first medium and a second medium has a body comprising a pair of header plates, a pair of distribution plates, and a pair of case body lateral panels. Input and output header plates have a plurality of orifices, with a flow path assembly extending between each input header plate orifice and the corresponding output header plate orifice. Each flow path assembly includes at least one chamber assembly, having a corresponding medium directing component, disposed between a pair of tubular segments. Input and output distribution plates have a plurality of orifices. A first medium inlet side tank engages with the input header, a first medium output side tank engages with the output header plate, a second medium inlet side tank engages with the input distribution plate, and a second medium output side tank engages with the output distribution plate.

A device (1) for static mixing and heat exchange comprises a cladding element (2) and a mixer insert (3), whereby the mixer insert (3) is in the operative state arranged inside the cladding element (2). The mixer insert has a longitudinal axis and comprises a first group (5) of web elements and a second group (6) of web elements. The first group (5) of web elements extends along a first common group plane (7) and the second group (6) of web elements extends along a second common group plane (8). At least a portion of the web elements (9, 10) is provided with channels (11, 12). The channels extend from a first end (13) of the web element (11) to a second end (14) of the web element (11). The cladding element (2) comprises a corresponding channel, which is in fluid connection with the first end (13) and the second end (14) of the web element whereby the transition from at least one of the first (13) and second ends (14) of the web element to the corresponding channel in the cladding element (2) is free from gaps.

An indoor unit of a ceiling type air-conditioner includes a main body having an inlet port and an outlet port provided at a lower portion thereof, a heat exchanger having a tube through which a refrigerant flows, a blowing fan which forcibly causes air to flow, and a control box comprising a case which is fixed to the main body and a cover which is rotatably coupled to the case so as to open and close the case and to which a printed circuit board having electronic components mounted thereon is fixed.