Abstract: A filter for use in a baghouse. The filter is to be supported by a tubesheet that separates dirty fluid and clean fluid chambers of the baghouse. The filter including a filtration bag that has an open end adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end along a direction of a central axis of the filtration bag. The bag sidewall permits passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocks passage of at least some particulate material against proceeding to the clean fluid chamber. The filter includes a cage located within the filtration bag. The cage has structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.

Abstract: An acoustic cleaning system includes an operating device having an interior portion. An acoustic cleaning device provides for the passage of a sound wave into the interior portion of the operating device. The acoustic cleaning device includes a horn section attached to an elongated section having a linear or non-linear shape. Sound waves are configured to pass from the elongated section to the horn section and into the interior portion of the operating device. The elongated section is removable from the horn section such that the elongated section is interchangeable with an elongated section having a different length, such that the sound waves are configured to have a frequency between 55 Hz to 75 Hz depending on a temperature of the operating device.

Abstract: A pulse detonation cleaning system is provided and includes a common tube, which is fluidly coupled to a vessel, a first array, including a plurality of elongate detonation tubes arrayed about a common axis, each of the plurality of the detonation tubes being disposed upstream from and fluidly coupled to an interior of the common tube and a second array, including a plurality of detonators arrayed about the common axis, each of the plurality of the detonators being disposed upstream from and operably coupled to a corresponding one of the plurality of the detonation tubes such that actuation of each of the plurality of the detonators leads to combustion in the corresponding one of the plurality of the detonation tubes.

Abstract: An acoustic cleaning assembly that includes a horn assembly and a generator body that is coupled to the horn assembly. The generator body includes an inner surface that at least partially defines an outlet plenum, and an opening that extends in flow communication between the horn assembly and the outlet plenum. An end cap is coupled to the generator body and includes an inner surface that at least partially defines an inlet plenum. A diaphragm is coupled between the generator body and the end cap. The diaphragm channels air from the inlet plenum to the outlet plenum to facilitate generating sound waves within the outlet plenum.

Abstract: A system for sensing an operational status or level of performance of an acoustic horn makes use of a vibration sensor that is operatively coupled to the driver of the acoustic horn. The sensor can be an accelerometer. The sensor outputs a vibration signal when the acoustic horn is operating. Characteristics of the vibration signal are compared to threshold values or to patterns to determine the operational status or level of performance of the acoustic horn.

Abstract: The present application provides a pulse detonation combustor cleaning device. The pulse detonation combustor cleaning device may include a combustion section and one or more combustion tube sections downstream of the combustion section. The combustion tube sections may a divergent shape and a number of divergent obstacles therein.

Abstract: A filter for use in a baghouse. The filter is to be supported by a tubesheet that separates dirty fluid and clean fluid chambers of the baghouse. The filter including a filtration bag that has an open end adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end along a direction of a central axis of the filtration bag. The bag sidewall permits passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocks passage of at least some particulate material against proceeding to the clean fluid chamber. The filter includes a cage located within the filtration bag. The cage has structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.

Abstract: A filter element includes a filter media extending along a longitudinal axis and extending circumferentially about a central passageway that extends along the longitudinal axis. The filter media defines a droplet cross-sectional shape perpendicular to the longitudinal axis. Alternatively, the filter media defines a top portion shape and a bottom portion shape, with the top and bottom cross-sectional portion shapes being asymmetric with respect to each other. The filter element may be used in a filtration arrangement for filtering dust flow. The filtration arrangement also includes a filter housing that has an opening through which dust flow is configured to enter the filter housing.

Abstract: A pulse detonation system is provided for delivering a shock wave to an operating device to clean accumulation or buildup of particles within the operating device. The pulse detonation system includes a support structure, a camera apparatus and a pulse detonation chamber. The pulse detonation chamber is supported by the support structure and extends into the interior portion of the operating device. The pulse detonation chamber receives fuel and air to create a shock wave. The shock wave exits the pulse detonation chamber and interacts with the buildup of particles in the operating device. The pulse detonation chamber includes a plurality of pulse detonation tubes that are detachable and portable, such that the pulse detonation system can be detached and moved from a first location to a second location.

Abstract: A device and method for cleaning baghouse filters using a shock wave vortex is disclosed. In one embodiment, high pressure fluid enters the housing of the device through an inlet tube in axial alignment with a resonance chamber within the housing. The high pressure fluid enters and exits a resonance chamber causing a collision with the fluid from the inlet tube to generate a shock wave. The shock wave is directed downward by the housing through the lower opening of the housing and towards a baghouse filter as a ring-shaped shock wave vortex. The ring-shaped shock wave vortex concentrates cleaning energy along the side material of the baghouse filter.

Abstract: A pulse detonation device can provide one or more shock waves to an operating device. The pulse detonation device includes a pulse detonation chamber providing one or more shock waves, at least one pulse detonation outlet extending into the operating device and in operative association with the pulse detonation chamber, and a rotary union. The rotary union rotatably attaches the pulse detonation chamber to the at least one pulse detonation outlet, wherein the at least one pulse detonation outlet can move with respect to the pulse detonation chamber. The at least one pulse detonation outlet is rotatable within the operating device and can deliver the one or more shock waves to a plurality of locations within the operating device.

Abstract: A filtration system for use in a turbine flow path is provided. The filtration system includes a cartridge filter and an attachment portion coupled to the cartridge filter, the attachment portion configured to couple the cartridge filter to a tube sheet, such that the tube sheet is secured within an annular cavity defined between a first flange and a second flange extending from the attachment portion.

Abstract: A system includes an emissions control system. The emissions control system includes a chemical injection conduit. The emissions control system also includes a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chemical into the chemical injection conduit. The emissions control system further includes a wave generator coupled to the chemical injection conduit, wherein the wave generator is configured to output multiple waves that propagate through the chemical injection conduit into a flow path of combustion products to drive improved mixing of the emissions control chemical with the combustion products.

Abstract: A pulse detonation device is provided for delivering a shock wave into a gasification device to promote a localized coal gasification reaction in the gasification device. The pulse detonation device includes a fuel inlet for receiving fuel, an air inlet for receiving air, a pulse detonation chamber wherein the fuel and air are configured to mix, and an ignition device for igniting the mixture of fuel and air. The ignition of the mixture of fuel and air creates a shock wave in the pulse detonation chamber. Further, the pulse detonation chamber is attached to a gasification chamber and is configured to extend into a coal feed tube that extends into the gasification chamber, with the shock wave configured to exit the pulse detonation chamber and interact with coal in the coal feed tube.

Abstract: An acoustic cleaning assembly that includes a horn assembly and a generator body that is coupled to the horn assembly. The generator body includes an inner surface that at least partially defines an outlet plenum, and an opening that extends in flow communication between the horn assembly and the outlet plenum. An end cap is coupled to the generator body and includes an inner surface that at least partially defines an inlet plenum. A diaphragm is coupled between the generator body and the end cap. The diaphragm channels air from the inlet plenum to the outlet plenum to facilitate generating sound waves within the outlet plenum.

Abstract: A pulse detonation coal burner includes a burner body having an inlet and an outlet, and a fuel introduction system coupled to the inlet of the burner body. The fuel introduction system is configured and disposed to introduce at least one fuel into the burner body. A pulse detonation device is operatively coupled to the burner body. The pulse detonation device is configured and disposed to introduce a pulse detonation wave into the burner body to ignite the at least one fuel.

Abstract: The present application provides a pulsed detonation cleaning system for cleaning an enclosed structure. The pulsed detonation cleaning system may include a pulsed detonation combustor cleaner and an external fuel-air flow. The pulsed detonation combustor cleaner delivers the external fuel-air flow into the enclosed structure and ignites the external fuel-air flow to clean the enclosed structure.

Abstract: A system includes an emissions control system. The emissions control system includes a chemical injection conduit. The emissions control system also includes a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chemical into the chemical injection conduit. The emissions control system further includes a wave generator coupled to the chemical injection conduit, wherein the wave generator is configured to output multiple waves that propagate through the chemical injection conduit into a flow path of combustion products to drive improved mixing of the emissions control chemical with the combustion products.

Abstract: The present application provides a pulse detonation combustor heat exchanger. The pulse detonation combustor heat exchanger may include one or more pulse detonation combustors creating combustion gases therein, one or more inner pathways positioned about the pulse detonation combustors, and a working medium flowing in the inner pathways so as to exchange heat with the combustion gases in the pulse detonation combustors.

Abstract: A filter is provided and includes filter media folded into itself to have increased surface area formed of at least two filtering sections including an outer filtering section and an inner filtering section.