摘要:
A catalytic reactor/heat exchange device (10) is provided for generating a catalytic reaction in a reaction fluid flow (12) and transferring heat to a cooling fluid flow (14). The device includes reaction flow channels (20) with turbulators (30) therein. The turbulators (30) include an initial portion (40) and a selected portion (34) that includes a catalytic layer or coating (36) to initiate the desired catalytic reaction at a location (38) located downstream from the initial portion (40). In some preferred forms, each of the selected portions (34) of the turbulators (30) include at least one downstream section (103, 120) wherein the heat transfer performance has been intentionally reduced to improve performance of the device (10) during start up conditions.
摘要:
A fuel humidifier/pre-heater system (10) is provided for pre-heating and humidifying a fuel flow, and is particularly useful for pre-heating and humidifying a fuel flow for a fuel cell, particularly molten-carbonate fuel cells (60). The system includes a steam generator (12), a water bypass (18), a liquid/steam mixer (20), and a mixture heater (14). The humidified fuel outlet temperature of the system is controlled by bypassing a portion of the water flow around the steam generator (12) so as to control the amount of superheat. The steam is then mixed with the fuel, and then the fuel/steam mixture is heated in the mixture heater (14). Additionally, a fuel bypass (16) can be provided for further temperature control by bypassing a portion of the fuel around the mixture heater (14) and then mixing the bypassed fuel with the steam/fuel mixture that has passed through the mixture heater (14).
摘要:
Rapid response to a fuel cell system of the type including a reformer (32) in response to a change in load is achieved in a system that includes a fuel tank (24), a water tank (20) and a source (42) of a fluid at an elevated temperature. A heat exchanger (28) is provided for vaporizing fuel and water and delivering the resulting vapor to the system reformer (32) and includes an inlet (64) and an outlet (66) for the fluid. It includes a plurality of fluid flow paths (100), (102), (104) extending between the inlet (64) and outlet (66) as well as a fuel inlet (56) and a fuel outlet (58) spaced therefrom. The fuel inlet (56) and outlet (58) are connected by a plurality of fuel flow paths (52) that are in heat exchange relation with the fluid flow paths (100), (102), (104) and the fuel water inlet (56) is located adjacent the upstream ends of the fluid flow paths (100), (102), (104).
摘要:
A heat exchanger including a first header, a second header, and a third header. The third header includes a first plate including a generally planar face and a second plate including a generally planar face parallel to the planar face of the first plate and joined to the planar face of the first plate. The second plate includes an arcuate recess that extends from the planar face of the second plate to at least partially define a flow conduit between a first tube and a second tube. The arcuate recess has a radius of curvature measured from an axis generally parallel to the planar faces of the first and the second plates, and the axis is located within a first plane generally parallel to and midway between first and second opposing flat broad sides of the first tube and the second tube.
摘要:
An insect trap for mating disruption or monitoring purposes, comprising an at least substantially hollow body for containing an insect-attractant. The body is defined by a plurality of contiguous walls having interior and exterior surfaces, the interior surface of one or more of the plurality of contiguous walls at least partially covered with adhesive. The exterior surfaces define substantially flat faces, and adjacent ones of the plurality of contiguous walls meeting to define edges. At least one opening is defined in each of a majority of the contiguous walls, at least one of the openings being dimensioned to permit the ingress of insects into the interior of the body.
摘要:
A heat exchanger including a first header, a second header, and a third header. The third header includes a first plate including a generally planar face and a second plate including a generally planar face parallel to the planar face of the first plate and joined to the planar face of the first plate. The second plate includes an arcuate recess that extends from the planar face of the second plate to at least partially define a flow conduit between a first tube and a second tube. The arcuate recess has a radius of curvature measured from an axis generally parallel to the planar faces of the first and the second plates, and the axis is located within a first plane generally parallel to and midway between first and second opposing flat broad sides of the first tube and the second tube.
摘要:
According to the invention, a mobile signal pick-up means (11) of a diagnostics installation comprises a radiation receiver (12) for generating electrical signals dependent on the radiation shadow of a transirradiated subject, an image acquisition system (15), a calculating and storage unit (21), a display (22) as well as a communication means. A stationary evaluation means (5, 6, 7, 8) comprising a communication means is provided. The communication means are implemented as bidirectional communication means and serve for the signal transmission between the mobile signal pick-up means (11) and the stationary evaluation means (5, 6, 7, 8).