Abstract: Multiple dispatchable resources such as energy storage systems, generators, and curtailable loads are used to fulfill electricity usage control instructions by implementing multiple different sets of dispatch instructions. The sets of dispatch instructions vary based on individual status characteristics and aggregate status characteristics of the dispatchable resources in order to use the resources optimally. The resources may in some instances be prioritized according to their status characteristics in order to improve response efficiency, improve cost-effectiveness, reduce errors and flawed fulfillment, and improve the ability of the resources to respond to different kinds of electricity usage control instructions over time.

Abstract: Method for hydrogen liquefaction comprising at least one precooling step, wherein a hydrogen feed flow is cooled by a first refrigerant, a cooling step, wherein the hydrogen feed flow is cooled by a second refrigerant, and a step of expanding the hydrogen feed flow. Each of the first and second refrigerants is successively subjected to at least one compression and to at least one expansion in order to cool it, and a liquid phase of the first refrigerant cools the second refrigerant between at least three stages of said compression so that the second refrigerant does not exceed a temperature of 150 K, optionally 113 K, during said compression of the second refrigerant.

Abstract: Multiple dispatchable resources such as energy storage systems, generators, and curtailable loads are used to fulfill electricity usage control instructions by implementing multiple different sets of dispatch instructions. The sets of dispatch instructions vary based on individual status characteristics and aggregate status characteristics of the dispatchable resources in order to use the resources optimally. The resources may in some instances be prioritized according to their status characteristics in order to improve response efficiency, improve cost-effectiveness, reduce errors and flawed fulfillment, and improve the ability of the resources to respond to different kinds of electricity usage control instructions over time.

Abstract: An electric multi-mode drive system (400), a method for operating the same, a vehicle (110) and a track (401). The system is arranged for operating at one part (402) of the track (401), at a station (410; 411), an electric Linear Doubly Fed Motor, LDFM, (310) for launching the vehicle (110), and for operating at another part (403) of the track (401), between stations (410; 411), a further electric motor (320; 330; 340; 350), not an LDFM, arranged for at least one of accelerating, coasting and restarting movement of the vehicle (110) after launching. Electric power for operating the further electric motor (320; 330; 340; 350), is provided by an on-board rechargeable electrical energy storage device. With the LDFM (310), sufficient power is generated for accelerating the vehicle (110), and recharging the on-board electrical energy storage device during standstill, braking and/or launching.

Abstract: A method is provided for estimating at least one combustion characteristic of a fuel gas belonging to a family of fuel gases, where the at least one characteristic includes at least one of a Wobbe index or a higher heating value. The method includes measuring at least two flow properties of the fuel gas and measuring a dihydrogen content XH2 contained in the fuel gas. The method also includes estimating the at least one characteristic ? GN H ? ? 2 using an empirical affine relationship of ? GN H ? ? 2 = ? + ? · Y + ? · X H 2 . Here, ?, ?, and ? are coefficients predetermined for the family of fuel gases, and Y is a variable representative of physical properties of the fuel gas prepared from the measurements of the at least two flow properties of the fuel gas.

Abstract: A method of and a device, borehole drilling equipment and a computer program product for estimating at least one of down hole speed and down hole torque of borehole drilling equipment while drilling a borehole in an earth formation. The borehole equipment comprising a rotational drive system, a drill string, a bottom hole assembly comprising a drill bit, a top end coupled to the rotational drive system, and a speed controller arranged for controlling rotational top end drive speed by commanding a top end drive torque. The method being performed in a computer based on a two-port spectral domain transfer matrix computational model of the borehole drilling equipment. While drilling, rotational top end drive speed and top end drive torque are obtained and down hole speed and down hole torque of the borehole drilling equipment are calculated by reducing spectral bandwidth of and applying a time delay term to the calculations enabling a causal time domain solution.

Abstract: A method for calculating in real time the methane number of a liquefied natural gas contained in a tank, in particular in an on-board tank.

Abstract: Some embodiments are directed to a module for depressurisation and storage of a portion of a gas layer coming from at least one cryogenic tank. Some other embodiments are directed to a system using such a module.

Abstract: Some embodiments of the presently disclosed subject matter relate to a method and system for the real-time calculation of the amount of residual chemical energy in a non-refrigerated, pressurised tank containing liquefied natural gas, without a composition of the liquefied natural gas having to be determined.

Abstract: An end-fired melting furnace and a method of melting raw materials by an end-fired melting furnace are provided, where the furnace includes a melting tank, a melting chamber, first and second ports, at least one burner, and at least one auxiliary fuel injector arranged in the end-fired melting furnace in a roof or in first and second side walls so that the at least one auxiliary fuel injector introduces a fraction X2 of auxiliary fuel, in a direction of re-circulating combustion products, without additional oxidiser, into the re-circulating combustion products in a direction of a flow of the re-circulating combustion products, and with a chosen velocity such that the fraction X2 of auxiliary fuel mixes with the re-circulating combustion products before being combusted by oxidiser entering the furnace.

Abstract: Load curtailment systems and methods track energy consumption information about a site over time. The energy consumption information is used to track power levels and to determine whether an energy surplus or an energy deficit accrues for the site based a predetermined setpoint. A load management system is used to offset the deficit or surplus by charging or discharging energy storage in a manner preventing average power draw within at least a subdivision of a utility billing period from exceeding the setpoint, thereby managing demand charges billed by a utility based on power draw of the site.

Abstract: This invention relates to a method and a system for calculating in real-time the duration of autonomy of a non-refrigerated tank containing natural gas comprising a liquefied natural gas (LNG) layer and a gaseous natural gas (GNG) layer. This invention also relates to a system for calculating, in real time, according to the method of the invention, the duration of autonomy of a non-refrigerated tank, as well as a vehicle comprising an NG tank and a system according to the invention.

Abstract: Multiple dispatchable resources such as energy storage systems, generators, and curtailable loads are used to fulfill electricity usage control instructions by implementing multiple different sets of dispatch instructions. The sets of dispatch instructions vary based on individual status characteristics and aggregate status characteristics of the dispatchable resources in order to use the resources optimally. The resources may in some instances be prioritized according to their status characteristics in order to improve response efficiency, improve cost-effectiveness, reduce errors and flawed fulfillment, and improve the ability of the resources to respond to different kinds of electricity usage control instructions over time.

Abstract: The invention relates to a device (100) for the odorization of a gas circulating in a pipeline (200), comprising: a tank (105) for a liquid odorizing compound; a means for detecting (140) differences in pressure between the pipeline (200) and the tank; a means (135) for pressurizing the compound in the tank according to the pressure difference; a microperforated membrane (110) acting as an interface between the tank and an inner volume (115) of the pipeline; and a means (120) for vibrating the microperforated membrane in order to spray the liquid odorizing compound, when it comes into contact with the membrane, into the pipeline.

Abstract: Multiple dispatchable resources such as energy storage systems, generators, and curtailable loads are used to fulfill electricity usage control instructions by implementing multiple different sets of dispatch instructions. The sets of dispatch instructions vary based on individual status characteristics and aggregate status characteristics of the dispatchable resources in order to use the resources optimally. The resources may in some instances be prioritized according to their status characteristics in order to improve response efficiency, improve cost-effectiveness, reduce errors and flawed fulfillment, and improve the ability of the resources to respond to different kinds of electricity usage control instructions over time.

Abstract: An intervention method for acting on a wall of a fluid pipeline using a tool includes moving the tool inside the pipeline until a pipe segment of the tool is positioned facing a zone of the wall of the pipeline. The method also includes creating sealing upstream and downstream from the zone using first and second seals of the tool so as to seal off an outer portion of a segment of the pipeline around the zone. The method further includes acting on the zone of the wall. The sealing by the first and second seals occurs in two portions of the pipeline so as to define a sealing lock between the two portions of the pipeline. The first seal is in two portions, and the second seal is in two portions.

Abstract: An intervention method for acting on a wall of a fluid pipeline using a tool includes moving the tool inside the pipeline until a pipe segment of the tool is positioned facing a zone of the wall of the pipeline. The method also includes creating sealing upstream and downstream from the zone using first and second seals of the tool so as to seal off an outer portion of a segment of the pipeline around the zone. The method further includes acting on the zone of the wall. The sealing by the first and second seals occurs in two portions of the pipeline so as to define a sealing lock between the two portions of the pipeline. The tool further includes an adjustable propulsion system configured to make use of movement of the fluid in order to move the tool.

Abstract: An apparatus for pre-assembly of an electrically connected array of solar panels for a solar canopy including a substantially planar base member for resting on a horizontal surface, a substantially planar support member for horizontally aligning side-by-side and horizontally supporting a plurality of solar panels and a support member extending upward from the base member; a track member disposed proximate a bottom portion of the support member attached to or integral with the support member or base member for vertically aligning side-by-side and vertically supporting a plurality of solar panels when a side edge portion of the solar panels rests on the track member; and at least two arm members pivotally attached proximate to opposing ends of the base member or support member.

Abstract: An electronic device includes a body having a threaded portion configured to co-operate with a threaded portion of a duct in a sleeve in order to move the device into a final position when the device is turned. The electronic device also includes a hole punch configured to form a through orifice in a pipe while the device is being turned and to enable the device to be inserted into the final position. The electronic device further includes an electronic module configured to be in contact with a fluid passing through the pipe when the device is in the final position. In addition, the electronic device includes at least one electrical connection connected to the electronic module and passing through the body leading to a top face of the body. The body and the at least one electrical connection form a plug of the duct in the sleeve.

Abstract: Methods and systems for generating a probability assessment for peak demand reduction for utility customers using a conditional-output energy generator are described. One method includes providing a customer data set and one or more historical generator production data sets for one or more intermittent generators that meteorologically correspond with the customer data set. Time intervals are defined in the data sets and a production distribution curve is generated for each time interval. A simulation is performed using the historical customer consumption data and the production distribution curves to obtain a net demand distribution curve for each time interval. These methods and systems may provide probability-based economic evaluation of consumption management systems.