Abstract: A fiber-reinforced polymer anchoring system for a structural element includes a fiber-reinforced polymer member configured to provide external tensile reinforcement to the structural element; an anchoring device coupled with the fiber-reinforced polymer member and the structural element; wherein the anchoring device includes a metallic layer, a fiber-reinforced polymer layer, and a fastener for securing the anchoring device on the fiber-reinforced polymer member and the structural element.

Abstract: A pre-fabricated composite reinforcement device for installation on a structure, comprising a metal reinforcement layer; a fiber reinforced polymer layer; an adhesive layer configured between the metal and fiber reinforced polymer layer; and a plurality of power-actuated fasteners configured for securing the metal reinforcement, fiber reinforced polymer, and adhesive layer to the structure; and wherein a first side of the metal reinforcement layer is for positioning upon the structure for installation of the fasteners with the first side facing away from the structure, and a second side is configured with the adhesive and fiber reinforced layer across a surface area of the second side of the metal reinforcement layer.

Abstract: A fiber-reinforced polymer anchoring system for a structural element includes a fiber-reinforced polymer member configured to provide external tensile reinforcement to the structural element; an anchoring device coupled with the fiber-reinforced polymer member and the structural element; wherein the anchoring device includes a metallic layer, a fiber-reinforced polymer layer, and a fastener for securing the anchoring device on the fiber-reinforced polymer member and the structural element.

Abstract: A pre-fabricated composite reinforcement device for installation on a structure, comprising a metal reinforcement layer; a fiber reinforced polymer layer; an adhesive layer configured between the metal and fiber reinforced polymer layer; and a plurality of power-actuated fasteners configured for securing the metal reinforcement, fiber reinforced polymer, and adhesive layer to the structure; and wherein a first side of the metal reinforcement layer is for positioning upon the structure for installation of the fasteners with the first side facing away from the structure, and a second side is configured with the adhesive and fiber reinforced layer across a surface area of the second side of the metal reinforcement layer.

Abstract: A method of repairing a pipe and a repaired pipe are described. A curable material is sprayed onto a wall of the pipe and cured. A fabric including a curable material is also positioned along the pipe wall and resin carried by the fabric cured. The sprayed on curable material and fabric are superposed on the pipe wall. The repaired pipe includes the superposed sprayed-in-place curable material and the fabric to provide reinforcement against internal pressure and external loads applied to the pipe.

Abstract: A system and method to enable natural laminar flow over a fluid-dynamic body using a variable camber Krueger flap is disclosed. A sequence of flap positions is deployed where the variable camber Krueger flap is below and aft of the wing leading edge before reaching a configured takeoff and landing position. The variable camber Krueger flap is positioned in a high position relative to a wing leading edge when the variable camber Krueger flap is fully deployed.

Abstract: A lubrication system is provided for delivering a lubricant to a plurality of nozzles. The lubrication system includes a reservoir for the lubricant; a pump fluidly coupled to the reservoir and configured to remove a flow of the lubricant from the reservoir; a lubrication sensor positioned between the pump and the plurality of nozzles and configured to detect a blockage in the plurality of nozzles and to generate a blockage signal when the blockage is detected; and an indicator coupled to the lubrication sensor and configured to generate a warning based on the blockage signal from the lubrication sensor.

Abstract: A system and method to enable natural laminar flow over a fluid-dynamic body using a variable camber Krueger flap is disclosed. A sequence of flap positions is deployed where the variable camber Krueger flap is below and aft of the wing leading edge before reaching a configured takeoff and landing position. The variable camber Krueger flap is positioned in a high position relative to a wing leading edge when the variable camber Krueger flap is fully deployed.

Abstract: A lubrication system is provided for delivering a lubricant to a plurality of nozzles.

Abstract: A component for a gas turbine engine having an engine axis includes a rotor disk and a plurality of airfoils. The rotor disk comprises a web and a rim. The web has a first outer surface at least partially defining a plurality of holes and a plurality of slots. Each of the plurality of slots extends from a corresponding one of the plurality of holes and forms a first angle with the engine axis at the point of intersection with the corresponding one of the plurality of holes. The rim has a second outer surface also at least partially defining the plurality of slots. Each of the plurality of slots forms a second angle with the engine axis at the second outer surface, the second angle being different from the first angle. Each of the plurality of airfoils extends from the second outer surface.

Abstract: A component for a gas turbine engine having an engine axis includes a rotor disk and a plurality of airfoils. The rotor disk comprises a web and a rim. The web has a first outer surface at least partially defining a plurality of holes and a plurality of slots. Each of the plurality of slots extends from a corresponding one of the plurality of holes and forms a first angle with the engine axis at the point of intersection with the corresponding one of the plurality of holes. The rim has a second outer surface also at least partially defining the plurality of slots. Each of the plurality of slots forms a second angle with the engine axis at the second outer surface, the second angle being different from the first angle. Each of the plurality of airfoils extends from the second outer surface.

Abstract: The invention relates to a pulse generating system for generating high voltage pulses to energize an electrostatic precipitator (10), the system including: a first power supply (1) and a second power supply (2), where said second power supply (2) is arranged to pre-charge said electrostatic precipitator (10) to a DC voltage; a storage capacitor (7) and a series inductance; a switching device (5) coupled in parallel with an anti-parallel rectifier device (6); and wherein the system is arranged to be coupled to the electrostatic precipitator. The invention relates to provide such a pulse generating system with enhanced efficiency compared to present pulse generating systems and with enhanced protection of the components of the system in case of sparks in the electrostatic precipitator (10). This is achieved, when the switching device (5) of the system has turn-off capability and when the system includes a clamping circuit (11-13; 60-67).

Abstract: The invention relates to a pulse generating system for generating high voltage pulses to energize an electrostatic precipitator (10), said system comprising: a first power supply (1) and a second power supply (2), where said second power supply (2) is arranged to pre-charge said electrostatic precipitator (10) to a DC voltage; a storage capacitor (7) and a series inductance; a switching device (5) coupled in parallel with an anti-parallel rectifier device (6); and wherein said system is arranged to be coupled to said electrostatic precipitator. The invention relates to provide such a pulse generating system with enhanced efficiency compared to present pulse generating systems and with enhanced protection of the components of the system in case of sparks in the electrostatic precipitator (10). This is achieved, when the switching device (5) of the system has turn-off capability and when the system comprises a clamping circuit (11-13; 60-67).

Abstract: An auxiliary power unit (APU) includes a rotary fuel slinger, and a single-spool, two-stage turbine. The rotary fuel slinger receives a rotational drive force from the turbine, and a supply of fuel from a fuel source. The rotary fuel slinger injects the fuel into a combustor as a continuous “fuel sheet.” As a result, fuel mixing and atomization inside the combustor is improved, which reduces emissions and pattern factor, which in turn increases turbine life.

Abstract: A method of operating an electrostatic precipitator (7) includes feeding the precipitator with electric power generated by a power supply (10) according to a regime adapted to impart between the precipitator electrodes a voltage having a DC component and an AC component. A control unit (8) measures the electrode voltage, establishes a voltage peak value and a voltage mean value, and computes the product of peak value by mean value to arrive at an index of expected performance (IEP). Operating set points are tuned so as to maximize this index of expected performance.

Abstract: A cement production plant and method of regulating the flue gas temperature in a cement production plant. The cement production plant includes a kiln, a flue gas conditioning device, a mill and an electrostatic precipitator. The flue gas from the kiln is passed through the conditioning device. From there, the flue gas is conveyed either via the mill or directly to the electrostatic precipitator. The measurements are carried out in the flow path of the gas of the flue gas temperature before the electrostatic precipitator, and the water is supplied to the flue gas for cooling purposes in the conditioning device as a response to this temperature measurement, provided the temperature is too elevated.

Abstract: A method of operating an electrostatic precipitator (7) comprises feeding the precipitator with electric power generated by a power supply (10) according to a regime adapted to impart between the precipitator electrodes a voltage having a DC components and an AC component. A control unit (8) measures the electrode voltage, establishes a voltage peak value and a voltage mean value, and computes the product of peak value by mean value to arrive at an index of expected performance (IEP) . Operating set points are tuned so as to maximize this index of expected performance.

Abstract: In an electrostatic precipitator for cleansing flue gases from industrial plants, comprising one or more precipitator sections powered from a separate continuous or intermittent DC-voltage electric supplies, a method and apparatus for detecting back corona, i.e. discharges in the dust layer precipitated on the collecting electrodes of an emission electrode system during the cleansing process, by making periodic upward adjustment of the precipitator current for each DC-voltage supply until spark-over occurs, and where after spark-over or a blocking of the precipitator current for a predetermined period of time if no spark-over occurs, the minimum value of the precipitator voltage is compared wtih the minimum value before the spark-over or before the blocking period, the latter minimum value being corrected by means of a predetermined sensitivity factor.

Abstract: To control an electrostatic precipitator towards minimum energy consumption at a given efficiency the dust content in the exit air of the precipitator is measured and the efficiency of the precipitator regulated upwardly or downwardly accordingly. Regulation is carried out in accordance with a selected one of a plurality of predefined stored strategies by a central unit which controls the parameters of the independent power supplies to the precipitator sections.