Abstract: A solar receiver for converting solar radiation into thermal energy. The solar receiver includes a heat-absorbing solid body, a fluid system to provide a flow of working fluid proximate to the heat-absorbing solid body, and a movement device to move the heat-absorbing solid body such that one or more surfaces of the heat-absorbing solid body are periodically exposed to incident solar radiation. The incident solar radiation heats a portion of the heat-absorbing solid body which in turn heats the working fluid.

Abstract: Apparatus and methods for jet impingement cooling are provided. In one arrangement, a fluid channelling structure engages against a target surface to define a flow volume. Fluid is jetted onto the target surface from inlets and is removed via outlets. Flow directing features form a plurality of channels with no straight paths between inlets and outlets. A time averaged flow direction of fluid in contact with each flow directing feature is more nearly perpendicular to a direction of jetting of the fluid from a nearest inlet than parallel to the direction of jetting One or more pairs of the inlets and outlets are such that a majority of fluid jetted onto the target surface from the inlet of the pair will be removed from the flow volume through the outlet of the same pair.

Abstract: A solar receiver and associated components, systems and methods for use with a concentrated solar power plant. The solar receiver including a heat-absorbing solid body, an optical arrangement configured to direct light on to the heat-absorbing solid body, and a heat exchanger cowl proximate the heat-absorbing solid body arranged to provide a flow of working fluid over the rotor. In use, the light from the optical arrangement heats the heat-absorbing solid body which in turn heats the working fluid proximate the heat-absorbing solid body. The heat-absorbing solid body is movable relative to the optical arrangement from a first position to a second position such that the heat-absorbing solid body does not overheat.

Abstract: Apparatus and methods for jet impingement cooling are provided. In one arrangement, a fluid channeling structure engages against a target surface to define a flow volume. Fluid is jetted onto the target surface from inlets and is removed via outlets. Flow directing features form a plurality of channels with no straight paths between inlets and outlets. A time averaged flow direction of fluid in contact with each flow directing feature is more nearly perpendicular to a direction of jetting of the fluid from a nearest inlet than parallel to the direction of jetting One or more pairs of the inlets and outlets are such that a majority of fluid jetted onto the target surface from the inlet of the pair will be removed from the flow volume through the outlet of the same pair.

Abstract: The invention relates to a method of measuring turbulence in a high temperature fluid flow, comprising: applying different levels of cooling at different times to a region of a substrate in the high temperature fluid flow; and/or applying different levels of cooling at the same time to different regions of a substrate in the high temperature fluid flow and/or to regions on different substrates in the high temperature fluid flow, wherein the method further comprises: measuring fluctuations in the temperature of the region or regions of the substrate or substrates at each of the different levels of cooling; and using the measured fluctuations to determining an amount of turbulence in the high temperature fluid flow and/or the size of temperature fluctuations in the high temperature fluid flow.

Abstract: Embodiments of the present invention relate to system, method, computer program product embodiments and combinations and sub-combinations thereof for generating dynamic attribute elements and dynamic attributes for MBOs. An embodiment includes generating dynamic attribute elements for MBO metadata in a manner that enables a mobile application to directly access and modify dynamic attributes included within the dynamic attribute elements. In an embodiment, dynamic attributes are included within the dynamic attribute elements arbitrarily to synchronization sessions of a server and a mobile application. The embodiment also allows the mobile application to set a value associated with a dynamic attribute. Another embodiment includes embedding a dynamic attributes entity in generated client code and downloading dynamic MBO attributes and associated metadata when the client synchronizes with the server.

Abstract: Methods and related apparatus embodiments are disclosed that allow novel Conformal Vortex Generator and/or Elastomeric Vortex Generator art to improve energy efficiency and control capabilities at many surface points of a body or object moving at speed in aero/hydrodynamic Newtonian fluids, by reducing; shock energy losses, surface flow turbulence, and/or momentum layer thicknesses.

Abstract: An aircraft planning control system and method. According to one embodiment, a flight management computer and remote server system are communicably coupled to a plurality of sensors, the plurality of sensors recording data associated with an aircraft in operation. The data is used by the remote server system and flight management computer to generate real-time performance data for the aircraft, and to optimize a speed schedule for the aircraft.

Abstract: The invention relates to a method of measuring turbulence in a high temperature fluid flow, comprising: applying different levels of cooling at different times to a region of a substrate in the high temperature fluid flow; and/or applying different levels of cooling at the same time to different regions of a substrate in the high temperature fluid flow and/or to regions on different substrates in the high temperature fluid flow, wherein the method further comprises: measuring fluctuations in the temperature of the region or regions of the substrate or substrates at each of the different levels of cooling; and using the measured fluctuations to determining an amount of turbulence in the high temperature fluid flow and/or the size of temperature fluctuations in the high temperature fluid flow.

Abstract: A method and apparatus are disclosed that allow Conformal Vortex Generator art to improve energy efficiency and control capabilities at many points in a turbomachine or device processing aero/hydrodynamic Newtonian fluid-flows.

Abstract: A component of a turbine stage of a gas turbine engine is provided, the component forming an endwall for the working gas annulus of the stage. The component has one or more internal plena behind the endwall which, in use, contain a flow of cooling air. The component further has a plurality of exhaust holes in the endwall. The holes connect the plena to a gas-washed surface of the endwall such that the cooling air effuses through the holes to form a cooling film over the gas-washed surface. Each exhaust hole has a flow cross-sectional area which is greater at an intermediate position between the entrance of the hole from the respective plenum and the exit of the hole to the gas-washed surface than it is at said exit.

Abstract: A high temperature measurement probe comprises an elongate probe body having a measuring head which in use is located in a hot fluid flow. The probe further comprises a thermocouple extending along the interior of the probe body to terminate at a temperature-sensing thermocouple junction inside the measuring head. The probe body has internal passages for circulation of a coolant fluid therein. The measuring head contains a channel, one end of the channel forming an inlet for receiving hot fluid from the hot fluid flow and another end of the channel forming an outlet for discharging the hot fluid received at the inlet. Between the inlet and the outlet a section of the channel extends along the length direction of the probe body. The thermocouple runs along the section of the channel with the thermocouple junction proximate the upstream end of the section.

Abstract: Systems, methods, and computer program products are provided for synchronizing data within a native PIM data store in a device an enterprise data. Data modifications generated by mobile applications on the device, or by an enterprise server, are identified and reflected into the native PIM data store. Additionally, a listener is provided to detect modifications to relevant data within the native PIM data store and reflect these modifications in the mobile applications and the enterprise server. The framework which accomplishes this further provides platform-independent access to the native PIM data store.

Abstract: A method of improving aerodynamic performance of foils by the application of conformal, elastomeric vortex generators. The novel use of elastomers allows the application of various forms of vortex generators to sections that have been problematic from engineering and cost considerations. A novel and efficient vortex generator profile is identified, which develops an additional co rotating vortex at low energy expenditure. The mechanisms allow for the application of transverse vortex generators, or Gurney Flaps/Lift Enhancement Tabs/Divergent Trailing Edges, to propellers, rotorblades, and to wings/flaps/control trailing edges. Cove Tabs are additionally described using an elastomeric transverse vortex generator to achieve performance improvements of a high lift device.

Abstract: An approach that prepares an electronic document of continuous information for document exchange that simultaneously supports continuous and page-by-page printing is described. In one embodiment, there is an electronic document generator tool for document exchange that includes an input component configured to receive input with respect to preparing the electronic document of continuous information for continuous and page-by-page printing. The input comprises an indication to represent the electronic document of continuous information in a page-based file format for document exchange and an indication of target page sizes with respective unprintable margins that are desired for printing the electronic document of continuous information.

Abstract: Systems, methods, computer program product embodiments and combinations and sub-combinations thereof for data caching and cache synchronization are described herein. An embodiment includes comparing data in a cache with data stored at a data source and determining database operations needed to synchronize one or more partitions of the cache with the data source. Each cache partition is associated with mobile business object (MBO) metadata of a distinct mobile device and the determined database operations are executed to synchronize the partitions with the data source. By refreshing only those partitions which are pertinent to a given device, embodiments of the invention may increase parallelism by allowing multiple partitions to refresh concurrently. The embodiment further comprises reviewing a caching policy associated with the cache. The caching policy may be selected in a manner that reduces data traffic and redundant requests on the data source.

Abstract: An air-cooled oil cooler for the wall of an air flow passage of a gas turbine engine is provided, the oil cooler allowing improved heat exchange performance to be obtained. This is achieved by: (I) diverting air flow from the inner side of the oil cooler towards the outer side of the oil cooler, (ii) enhancing heat exchange performance at the leading edge of the cooler, and/or (iii) suppressing airflow wake at the trailing edge of the cooler.

Abstract: A shroud segment for a turbine stage of a gas turbine engine forms an endwall for the working gas annulus of the stage. The segment also provides a close clearance to the tips of a row of turbine blades which sweep across the segment. In use a leakage flow of the working gas passes through the clearance gap between the blade tips and the segment. The segment has a plurality of cooling holes and respective air feed passages for the cooling holes. The cooling holes are distributed over that part of the gas-washed surface of the segment which is swept by the blade tips. The cooling holes deliver, in use, cooling air which spreads over the gas-washed surface. The feed passages are configured such that the delivered air opposes the leakage flow of the working gas.

Abstract: An erosion protection system and method applicable to foils or aerodynamic surfaces. Single element erosion protective elements having joggles are provided, each single element being alignable with the next to provide a contiguous erosion protection layer.