Abstract: The present disclosure provides systems and methods for adjusting an exhaust gas recirculation rate to provide accurate air-fuel ratio. The disclosure provides a method for calculating an exhaust-gas recirculation rate based on a measured exhaust-gas lambda and a turbocharger speed. Through the use of the exhaust-gas lambda and the turbocharger speed it is possible to calculate an exhaust-gas recirculation rate while dispensing with the difficult and unreliable determination of the mass air flow for determining an exhaust-gas recirculation rate, thus providing a stable method which further reduces fuel consumption and emissions.

Abstract: An engine system comprising: an exhaust gas system for removing exhaust gas from the engine; a turbocharger comprising a compressor for inducing air towards the engine and a turbine provided along the exhaust gas system and driven by removed exhaust gas for powering the compressor; a hydrogen delivery apparatus adapted to deliver hydrogen to the exhaust gas system such that the hydrogen can combust and expand, thereby increasing the speed of the turbine. The increased speed of the turbine operation decreases turbo lag and increases engine responsiveness.

Abstract: A valve arrangement (16) for a geothermal steam turbine generator (10) comprises first and second steam control valves (18, 20) for regulating the supply of steam to the steam turbine generator (10). The first and second steam control valves are arranged in parallel in a steam supply line (24) and the first steam control valve (18) has a smaller fully-open diameter than the second steam control valve (20). The first steam control valve (18) is arranged to regulate the volume flow rate of steam supplied to the steam turbine generator (10) during a speed-control phase, until the steam turbine generator (10) attains a predetermined rotational speed at which it can be connected to an ac electrical system.

Abstract: A waste heat recovery system includes a heat recovery cycle system coupled to at least two separate heat sources having different temperatures. The heat recovery cycle system is coupled to a first heat source and at least one second heat source. The heat recovery cycle system is configured to circulate a working fluid. The at least one second heat source includes a lower temperature heat source than the first heat source. The working fluid is circulatable in heat exchange relationship through a first heat exchange unit, a second heat exchange unit for heating the working fluid in the heat recovery cycle system. The first heat exchange unit is coupled to the at least one second heat source to heat at least a portion of a cooled stream of working fluid to a substantially higher temperature.

Abstract: A method for retrofitting an existing steam turbine with a steam extraction facility is provided. The stem turbine has a plurality of pressure stages and is integrated into a fossil-fired steam power plant. A steam extraction line is connected to one pressure stage or between two pressure stages of the steam turbine, and a heating steam turbine is connected into the steam extraction line.

Abstract: A magnetic thermal device is provided. The magnetic thermal device includes a shaft, having an axis direction; a rotator, supported by the shaft, having a working material and a utility material; a magnetic assembly, adjacent to the rotator, for generating a magnetic flux passing through the rotator in a flux direction, wherein the flux direction is substantially perpendicular to the axis direction.

Abstract: Disclosed is a generator compressor combination power system based upon an internal combustion engine directly coupled to a generator and a compressor assembly. The engine, generator and compressor each having an operating drive shaft all positioned along the same axis, the generator is used to produce electricity and the compressor is used to compress gas.

Abstract: A fuel manifold assembly for a gas turbine engine is described and includes an annular manifold body and an annular heat shield assembly mounted to and surrounding the manifold body. The heat shield assembly has an inner surface facing the manifold body and spaced apart therefrom by an inner air gap, which substantially surrounds the manifold body, defined therebetween. The heat shield assembly has an outer surface facing away from the manifold body and spaced apart from the inner surface by an outer air gap substantially surrounding the inner air gap. At least the outer air gap is formed by a double wall configuration of the heat shield assembly.

Abstract: A heat shield for a gas turbine engine having a combustor includes an annular configuration extending substantially 360 degrees about the combustor for protecting a dome portion thereof, which is formed by radially extending flanges of inner and outer liners of the combustor. The heat shield fixedly secures the radially extending flanges of the inner and outer liners together in a sealing relationship such as to structurally form the dome portion of the combustor. The heat shield is disposed internally within the combustor and substantially entirely overlying the dome portion. The heat shield includes at least two separate heat shield segments cooperating to provide the annular heat shield, each heat shield segment being sheet metal and including at least two circumferentially spaced apart openings therein for receiving fuel nozzles therethrough. Each of the heat shield segments has a circumferential span not exceeding 180 degrees.

Abstract: A fuel injector for a gas turbine engine is disclosed which includes a nozzle body for issuing fuel and air into a combustor, and an on-axis optical probe located within the nozzle body for observing combustor flame radiation, wherein the optical probe includes a plurality of optical fiber bundles extending to a distal end of the probe, and a shaped lens is supported at the distal end of the probe to provide a multi-directional field of view of combustion characteristics and properties in an operating gas turbine engine combustor.

Abstract: A control method for controlling an overspeed safety system (5) of an aircraft (1) having at least a first engine (10) and a second engine (20), during which method an engine is shut down when a monitoring parameter of that engine exceeds a first threshold, and another engine distinct from this engine is shut down when the monitoring parameter for said other engine exceeds a second threshold, said second threshold being greater than said first threshold.

Abstract: A method of operating a gas turbine, a device for regulating the starting and/or the operation of a gas turbine and a power plant are provided. The method includes continuously extracting fuel from a fuel network, and combusting, in at least one combustion chamber of a gas turbine, the fuel by adding combustion air. For an increase of a fuel stream supplied to the at least one combustion chamber, a fuel volume is extracted from a fuel store and supplied to the fuel still to be supplied to the at least one combustion chamber.

Abstract: A method of startup control for a gas turbine system that is operating in a fired deceleration shutdown process mode is provided. The method includes determining whether the combustor flame is in a lit state. Also included is increasing a fuel flow to the gas turbine system if the combustor is determined to be in the lit state. Further included is initiating a starter system to the gas turbine system.

Abstract: A system for recirculating a hot gas flowing through a gas turbine generally includes a transition piece having a downstream surface, a stationary nozzle having a leading edge surface adjacent to the transition piece downstream surface, a gap defined between the transition piece downstream surface and the stationary nozzle leading edge surface, and a projection having an inner arcuate surface radially separated from an outer surface. The projection generally extends from the stationary nozzle leading edge surface towards the transition piece downstream surface and at least partially decreases the gap. A seal extends across the gap and may be in contact with the transition piece and the stationary nozzle leading edge surface. A recirculation zone may be at least partially defined between the projection inner arcuate surface, the stationary nozzle leading edge surface and the transition piece downstream surface.

Abstract: Embodiments of the present application can provide systems and methods for dampening combustor dynamics. According to one embodiment, the system may include a micromixer. The system may also include at least one annular resonator disposed within the micromixer adjacent to a cap face plate or an impingement plate of the micromixer. The at least one annular resonator may include a first side including a number of holes forming a cold side hole pattern, a second side including a number of holes forming a hot side hole pattern, and a cavity substantially defined by the first side and the second side.

Abstract: A chemical reactor comprises a flow channel, a source, and a destination. The flow channel is configured to house at least one catalytic reaction converting at least a portion of a first nanofluid entering the channel into a second nanofluid exiting the channel. The flow channel includes at least one turbulating flow channel element disposed axially along at least a portion of the flow channel. A plurality of catalytic nanoparticles is dispersed in the first nanofluid and configured to catalytically react the at least one first chemical reactant into the at least one second chemical reaction product in the flow channel.

Abstract: Systems and methods are provided for removing particulate matter from gas turbine engines during operation are provided. Gas turbine engines are also provided. The particulate matter is suspended in a primary gas flow stream passing through an engine flowpath. A flowpath surface of the engine flowpath is electrostatically charged to a first polarity to thereby impart an electrostatic charge of the first polarity to the particulate matter. A bleed discharge duct is electrostatically charged to a second polarity and intersects the engine flowpath to define a bleed air flowpath. The second polarity is opposite to the first polarity. A bleed port is in fluid communication with the bleed discharge duct and has an outlet exterior of the gas turbine engine.

Abstract: A gas turbine includes at least one combustor and an exhaust frame; a compressor adapted to supply air to the combustor and to supply bleed air to the exhaust frame. A cooling air supply duct is arranged to supply ambient air to the exhaust frame and at least one ejector is. arranged to supply the bleed air to the cooling air supply duct upstream of the exhaust frame. A control valve is configured to control the supply of compressor bleed air to the cooling air supply duct and to the exhaust frame as a function of turbine exhaust temperature and/or turbine load conditions and cooling requirements at the various turbine load conditions.

Abstract: A Brayton cycle heat engine includes a compressor, a combustion chamber, and a turbine. The Brayton cycle heat engine also includes a heat exchanger positioned at least partially within the combustion chamber. The heat exchanger is configured to deliver thermal energy to the combustion chamber from an external source, heating air entering the combustion chamber from the compressor, where the air exits the combustion chamber and drives the turbine.

Abstract: A rotor includes a disk that has slots circumferentially arranged around its periphery. Blades include respective roots that are mounted in respective ones of the slots. The roots are smaller than the slots such that there are circumferential gaps between the roots and circumferential sides of the slots. Wedges are respectively located within the circumferential gaps. The wedges are free floating with regard to the blades and the disk.

Abstract: A system for selectively supplying air between separate plena of a gas turbine engine includes a gas turbine engine, a door, and a bi-metallic door actuator. The gas turbine engine comprises at least a first plenum and a second plenum, and has an opening between the first plenum and the second plenum. The is door mounted in the gas turbine engine and is movable between a closed position, in which air is prevented from flowing through the opening, and an open position, in which air may flow though the opening. The bi-metallic door actuator is coupled to the door and is configured to selectively move the door between the closed position and the open position.

Abstract: A magnetic cooling apparatus having an improved structure in which effective heat exchange may be performed by a heat transfer fluid is provided. The magnetic cooling apparatus includes at least one magnetic regenerator allowing a heat transfer fluid to pass therethrough and provided with a magnetocaloric material, a magnet to apply a magnetic field to the magnetic regenerator, and at least one high temperature heat exchanger allowing heat to be dissipated by the heat transfer fluid containing heat received from the magnetic regenerator.

Abstract: A position measurement device includes a light source, a reflector coupled to a test object, a light detector between the light source and reflector, and a controller to measure a position of the test object based on an interference pattern generated by a reference beam and a measurement beam output from the light detector. The controller also controls a temperature of the light detector by generating signals for a heat exchanger having a Peltier region coupled to the light detector. The signals including a first signal to cause the heat exchanger to remove heat from the light receiver and a second signal to cause the heat exchanger to apply heat to the light receiver.

Abstract: A dynamic chilled mini-bar includes: a cover; a movable compartment translatable to expose an interior thereof from behind the cover; and a cooling device operable to cool the interior of the movable compartment. A piece of integrated entertainment equipment in a vehicle includes: a dynamic chilled mini-bar movably installed on the integrated entertainment equipment; and an actuator coupled with at least one of a side of the integrated entertainment equipment and the movable compartment, the actuator being operable to translate the movable compartment. A method of operating a dynamic chilled mini-bar includes: receiving an input signal to translate a movable compartment of the dynamic chilled mini-bar from a first position to a second position with respect to a cover of the dynamic chilled mini-bar; and linearly translating the movable compartment to the second position according to the input signal.

Abstract: The current invention discloses an easy to use thermal container having a container body and a thermal control assembly. It is preferred that the container body is made of flexible material capable of being deformed by manual force. The thermal control assembly may include a heating pack or chilling pack, which contains chemicals that may generate heating or chilling effects when the chemicals are mixed. Manual manipulation of the heating or chilling pack, which is attached to the container body, may trigger the heating or chilling process and adjust the temperature of the substances kept in the container. The current invention further teaches a thermal container having at least a first compartment and second compartment, while the two compartment contain different substances that may be mixed when the separator of the compartments are dislodged or broken. One embodiment of the thermal container is an improved baby formula bottle.

Abstract: A regenerative refrigerator includes a regenerator disposed in a flow passage of working gas generating a cold thermal mass, the regenerator being loaded with a regenerative material to accumulate cold thermal energy from the cold thermal mass in the working gas, wherein the regenerative material is a sintered body made of a fiber material, and a diameter of the fiber material disposed at a low-temperature end of the regenerator is smaller than a diameter of the fiber material disposed at a high-temperature end of the regenerator.

Abstract: A pulse tube refrigerator includes a compressor, a pulse tube including an internal space, a regenerator loaded with a regenerative material for exchanging heat with working gas, a buffer including an internal space with a predetermined capacity, a flow passage to connect an end of the pulse tube and the buffer, a temperature detecting section to detect temperature of the working gas, a flow adjusting section to adjust an amount of flow of the working gas flowing through the flow passage, and a controlling section to control the flow adjusting section in response to the temperature of the working gas detected at the temperature detecting section.

Abstract: Systems and methods for handling discrete sensor information in a transport refrigeration system are provided. In one embodiment, a wireless control system for a transport refrigeration system is provided. The wireless control system includes two or more wireless end nodes and a network coordinator. Each of the wireless end nodes is configured to monitor a property of the transport refrigeration system. The network coordinator is configured to manage, command, direct and regulate the behavior of the wireless end nodes. Also, the network coordinator includes a sensor to zone coordinator that is configured to combine sensor data received by the two or more wireless end nodes to control a single transport refrigeration system function of the transport refrigeration system.

Abstract: A device for quickly freezing food product incorporates a pan and a base. The pan is adapted to receive the food product to be frozen, and has a bottom portion and a wall portion surrounding the bottom portion. The bottom portion of the pan has an upper surface and an opposing lower surface. The base is positioned under the bottom portion and the wall portion of the pan. The wall portion of the base is coupled to the wall portion of the pan such that the pan and the base form a unitary body. A cavity exists between the bottom portion of the base and the lower surface of the bottom portion of the pan. A plurality of fins project outwardly from lower surface of the bottom portion of the pan into the cavity.

Abstract: A method of measuring weight of the refrigerant recovered and a device for refrigerant recovery and recharge device is disclosed. A connection is established between the refrigerant recovery path and refrigerant recharge path. Refrigerant is filled in the refrigerant recovery path and the refrigerant recharge path. Once the refrigerant occupies the all components of the refrigerant recovery and recharge device, weight of the refrigerant storage tank is measured. The weight of the refrigerant storage tank is measured once before the recovery of the refrigerant from the refrigeration equipment and once after recovery of the refrigerant from the refrigeration equipment. Difference in the weights measured before recovery and after recovery is calculated to a get the amount of refrigerant recovered.

Abstract: Disclosed herein is a method for producing heating comprising condensing a vapor working fluid comprising (a) E-CF3CH?CHF and (b) at least one tetrafluoroethane of the formula C2H2F4, in a condenser, thereby producing a liquid working fluid; provided that the weight ratio of E-CF3CH?CHF to the total amount of E-CF3CH?CHF and C2H2F4 in the working fluid is from about 0.01 to 0.99. Also disclosed herein is a heat pump apparatus containing a working fluid comprising (a) E-CF3CH?CHF and (b) at least one tetrafluoroethane of the formula C2H2F4; provided that the weight ratio of E-CF3CH?CHF to the total amount of E-CF3CH?CHF and C2H2F4 in the working fluid is from about 0.01 to 0.99.

Abstract: A method for controlling the operation of a transport refrigeration system to limit current drawn by a compressor powered by AC electric current includes the steps of: (a) determining whether an ambient temperature in which the refrigeration unit is operating has been greater than a set point ambient temperature for a first time period; (b) determining whether the refrigeration unit has been operating in a temperature pulldown mode; (c) determining whether the AC electric current is equal to or exceeds a preset maximum current limit; (d) determining whether a time period between a last defrost cycle and a next previous defrost cycle is less than fifteen minutes; and (e) if the determination is YES in both of step (a) and step (b) and is also YES in at least one of step (c) and step (d), reducing the preset maximum current limit to a reset maximum current limit.

Abstract: A refrigeration system that induces lubricant-liquid refrigerant mixture flow from a flooded or falling film evaporator by means of the lubricant-liquid refrigerant mixture flow adsorbing heat from an electronic component.

Abstract: According to an embodiment, a refrigeration system that cools a compartment includes a compressor, a condenser, a condenser fan, a condenser fan motor, an evaporator, an evaporator fan, an evaporator fan motor, and tubing adapted to transport refrigerant through the refrigeration system in a circulation order from the compressor to the condenser to the evaporator and back to the compressor again. The evaporator fan may be positioned in an air inlet path to the evaporator. The evaporator fan motor may be outside a chilled air circuit of the evaporator.

Abstract: A method for operating a vapor compression system modifies each control signal of a set of control signals with a corresponding modification signal of a set of modification signals, wherein each modification signal includes a perturbation signal, and the pertubation signals haver different frequencies and determines a metric signal representing perturbations in the system caused by the set of modification signals. Next, the method adjusts a value of each modification signal based on a function of a phase between the modification signal and a corresponding frequency component of the metric signal.

Abstract: The invention relates to a composition including 1,1,1,4,4,4-hexafluorobut-2-ene and 3,3,4,4,4-pentafluorobut-1-ene, as well as to use thereof, in particular as a heat transfer fluid.

Abstract: In order to improve a refrigeration system comprising a refrigeration circuit, in which a refrigerant compressor, a condenser following on from the refrigerant compressor, an expansion device following on from the condenser and an evaporator following on from the expansion device are arranged, the evaporator being connected to the refrigerant compressor, wherein the refrigerant compressor has a drive motor speed-controlled by an electronic motor control and a control cooling branch which has refrigerant flowing through it, branches off from the refrigeration circuit between the condenser and the expansion device and is guided to a connection of the refrigerant compressor and in which a cooling element is arranged which is connected in a heat conducting manner to electronic power components of the motor control, in such a manner that disruption to the operation of the motor control is avoided as far as possible it is suggested that a regulating device be provided for the control cooling branch and this regulat

Abstract: A reversing valve comprising a valve body having an internal cavity therein and an input port, output port and first and second reversing ports. A baffle is located within the internal cavity and is configured to rotate around a pivot point within the internal cavity. At least one electromagnet is coupled to the valve body. The electromagnet is configured to cause the baffle to rotate in one of the clockwise direction or counter-clock wise direction when a voltage is applied to the electromagnet.

Abstract: A truck includes a refrigerated compartment that is equipped with a dedicated refrigerating system, and a driver cabin. The driver cabin is equipped with a least a first heat exchanger adapted to cool an air flow directed to the cabin. The truck further includes a compartment heat exchanger located in the refrigerated compartment and adapted to cool a heat transfer liquid sent to the first heat exchanger through a heat transfer liquid connecting the first heat exchanger to the compartment heat exchanger.

Abstract: The insulated container and insert are formed of relatively soft and flexible panels having relatively thick cores of thermal insulation captured between thin impervious sheets. The outer container has a closable top, and the insert has an open top. The insert is about half the height of the outer container, allowing ice or other cooling material, beverage cans and/or bottles, etc., to be placed in the bottom of the outer container with the insert resting thereon for the carriage of food therein. As the outer bottom surface of the insert will be moist from contact with ice or the like therebelow, the outer container includes a drop down panel that may be lowered for placement of the insert thereon to preclude contamination of the bottom of the insert with loose sand or the like. Additional carrying handles and straps are provided, as well as outer pockets on the outer container.

Abstract: A refrigeration system that induces lubricant-liquid refrigerant mixture flow from a flooded or falling film evaporator by means of the lubricant-liquid refrigerant mixture flow adsorbing heat from an electronic component.

Abstract: A refrigerator may include a compressor with a reciprocating member to compress or expand working gas by undergoing reciprocating movement, and a leaf spring unit to support the reciprocating member. The leaf spring unit includes a leaf spring having a first rim fixed to a compressor body, a first hub arranged on an inner side of the first rim and mounted on the reciprocating member and a resilient arm part movably supporting the first hub with respect to the first rim, and an auxiliary spring having a second rim fixed to the compressor body, a second hub arranged on an inner side of the second rim and mounted on the reciprocating member and an auxiliary spring part supported in a form of cantilever on the second rim and the second hub. The leaf spring is arranged between auxiliary springs, and the auxiliary spring part opposes the resilient arm part.

Abstract: An expansion valve according to an embodiment includes a mounting hole: that has its central axis at a height position between a first refrigerant passage and a second refrigerant passage in the body thereof; that is provided so as to penetrate a first side surface and a second side surface; and that is used for inserting, from the side of the second side surface, a bolt for fastening a mounting member on an evaporator side and the body. The mounting hole has, in an inside thereof, a stopper surface for stopping the head of the bolt in an insertion direction, and the stopper surface is formed so as to be located near to the first side surface relative to a central axis of a shaft.

Abstract: A partially condensed hydrocarbon feed stream is sent to a column. An overhead vapour hydrocarbon stream from the column is then partially condensed by indirect heat exchanging against an expanded cooling fluid flowing through a first section of a cold side heat exchanging channel. The cooling fluid consists of a mixed refrigerant composition, and liquid from the expanded cooling fluid is continuously transformed to vapour thereby forming a residual liquid portion of not evaporated expanded cooling fluid. The residual liquid is used to progressively condense the hydrocarbon feed stream to produce the partially condensed hydrocarbon feed stream that is sent to the column, by allowing the hydrocarbon feed stream to lose heat to the residual liquid passing through a second section of the cold side heat exchanging channel. The liquid component that is condensed out of the overhead vapour hydrocarbon stream is used as reflux for the column.

Abstract: A method and apparatus for the cryogenic distillation of air to produce gaseous oxygen with a purity between 75 and 95 mol % and a pressure lower than 5.5 bar abs using a triple column having a high-pressure column, a low-pressure column, and a medium-pressure column, wherein the medium-pressure column is at least partially thermally coupled with the low-pressure column and the high-pressure column is also at least partially thermally coupled with the low-pressure column.

Abstract: A ring resizing insert, comprising a length of insert material configured in a ring shape with an outer end overlapping an inner end and having a contoured outer surface to engage an inner surface of a ring, the ring resizing insert capable of engaging a finger when inserted therethrough and capable of expanding outwardly to allow a knuckle to pass therethrough.

Abstract: A jewelry system includes a first screw end, a first base, a second base, a screw wire and second screw end. The first and second screw ends are connected to respective ends of the screw wire. The first and second bases include receiving holes for receiving the screw wire. One or more sides extending from the first base include a cutout, and one or more sides extending from the second base corresponding to the side or sides of the first base including the cutouts include corresponding a cutout. The sides of the first base and the sides of the second base are configured to be connected together between the one or more cutouts, and corresponding cutouts of the first base and the second base form receiving areas when combined together. Each receiving area is configured to hold a gem stone or other decorative item when the first base and the second base are connected together.

Abstract: A method or apparatus for securing a first stone to a non-metal mount, the mount comprising a base and a cap which, in cooperation with the base, prevents the first stone from being lost. The first stone may be one of a crystal, a gemstone, a birthstone, a gem, or a similar item. The base may be attached to the cap through the use of screws, snaps, Velcro, glue or a thread connection between the base and the cap. The base may include an elevated pedestal on which the first stone rests, and the elevated pedestal may be configured such that a portion of the first stone extends outside of said cap. The base/cap combination may securely affix the stone between the base and the cap, or it may be designed such that the stone may move between the base and the cap.

Abstract: A method of fabricating a high-density array of holes in glass is provided, comprising providing a glass piece having a front surface, then irradiating the front surface of the glass piece with a UV laser beam focused to a focal point within +/?100 ?m of the front surface of the glass piece most desirably within +/?50 ?m of the front surface. The lens focusing the laser has a numerical aperture desirably in the range of from 0.1 to 0.4, more desirably in the range of from 0.1 to 0.15 for glass thickness between 0.3 mm and 0.63 mm, even more desirably in the range of from 0.12 to 0.13, so as to produce open holes extending into the glass piece 100 from the front surface 102 of the glass piece, the holes having an diameter the in range of from 5 to 15 ?m, and an aspect ratio of at least 20:1. For thinner glass, in the range of from 0.1-0.3 mm, the numerical aperture is desirably from 0.25 to 0.4, more desirably from 0.25 to 0.

Abstract: Apparatus for producing glass ribbon includes a control device configured at least periodic thermal stress compensation of the glass ribbon by independently adjusting operation of a plurality of temperature adjustment elements based on stress characteristic information at least periodically obtained from a stress sensor apparatus. In further examples, methods of producing glass include at least periodically sensing a stress characteristic of a glass ribbon and at least periodically changing a transverse temperature profile of the glass ribbon based stress characteristic information. In further examples, methods include the step of changing a transverse temperature profile of the glass ribbon only if a measured parameter is within an operating range associated with the parameter.