Method for obtaining information on quality of combustion of a liquor in a chemical recovery boiler and a method for controlling a chemical recovery boiler

    公开(公告)号:US12039239B2

    公开(公告)日:2024-07-16

    申请号:US17183962

    申请日:2021-02-24

    Abstract: A method for obtaining information on quality of combustion of a liquor in a chemical recovery boiler. The method comprises entering a value of a first input parameter to a computational model configured to determine, based on the value of the first input parameter, a value of the quality of combustion of the liquor in the chemical recovery boiler, and at a first time, running the computational model to obtain a first modelling result. The method comprises measuring, from the chemical recovery boiler a value indicative of carryover to obtain a measurement result; comparing the first modelling result with [a] the measurement result or [b] a result derived from the measurement result, to obtain a primary comparison result; and adjusting the value of the first input parameter based on the primary comparison result to obtain an adjusted value of the first input parameter. The method comprises entering the adjusted value of the first input parameter to the computational model, and at a second time, running the computational model to obtain the information on quality of combustion of the liquor in the chemical recovery boiler.

    FLOW BEHAVIOR PREDICTION SYSTEM, FLOW BEHAVIOR PREDICTION METHOD, AND COMPUTER PROGRAM PRODUCT

    公开(公告)号:US20240054270A1

    公开(公告)日:2024-02-15

    申请号:US18170673

    申请日:2023-02-17

    CPC classification number: G06F30/28 G06F2113/08

    Abstract: According to one embodiment, a flow behavior prediction system includes a storage unit, an acquisition unit, and a three-dimensional estimation unit. The storage unit stores therein two-dimensional data of a plurality of basic shapes forming an object. The acquisition unit acquires first state data including a velocity of a fluid for the object at a first time point and a direction of the fluid at the first time point. The three-dimensional estimation unit estimates second state data including a velocity of the fluid for the object at a second time point that is more advanced than the first time point and a direction of the fluid at the second time point using a three-dimensional estimation network to estimate a three-dimensional behavior of the fluid for the object from a two-dimensional behavior of the fluid for the object estimated from the two-dimensional data and the first state data.

    SIMULATION METHOD, SIMULATION APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM

    公开(公告)号:US20240054266A1

    公开(公告)日:2024-02-15

    申请号:US18298356

    申请日:2023-04-10

    Inventor: Masato Hirota

    CPC classification number: G06F30/25 G06F30/28 G06F2113/08

    Abstract: A simulation method of represents a fluid as a plurality of calculation particles, adds a physical quantity to each of the plurality of calculation particles, disposes the plurality of calculation particles in an analysis space, and develops the physical quantity added to each of the plurality of calculation particles and positions of the plurality of calculation particles over time by solving a governing equation. The simulation method includes evaluating an excess or deficiency of spatial resolution depending on sizes of the plurality of calculation particles, for each of the plurality of calculation particles, according to a state of a flow field represented by the plurality of calculation particles; and adjusting the spatial resolution, according to a result of the evaluation of the excess or deficiency of the spatial resolution.

    Method for forming a film or a curable composition, apparatus, and storage medium

    公开(公告)号:US11880638B2

    公开(公告)日:2024-01-23

    申请号:US17106938

    申请日:2020-11-30

    CPC classification number: G06F30/28 G03F7/0002 G06F2111/10 G06F2113/08

    Abstract: A simulation method predicts a behavior of a curable composition in a process of bringing droplets of the curable composition arranged on first and second members into contact with each other, and forming a film of the curable composition on the first member. The method includes inputting a physical property value of a gas between the first and second members, inputting a movement profile of the second member with respect to the first member when bringing the droplets of the curable composition on the first and second members into contact with each other, obtaining a pressure of the gas between the first and second members based on the physical property value and the input movement profile, and predicting, based on the pressure, an amount of a residual gas confined among the droplets by the contact between the droplets and the second member.

    Well flow simulation system
    79.
    发明授权

    公开(公告)号:US11809793B2

    公开(公告)日:2023-11-07

    申请号:US16957978

    申请日:2019-01-03

    Inventor: Gudbrand Nerby

    CPC classification number: G06F30/28 G01V99/005 G06F2113/08

    Abstract: The present invention relates to a system and method for modelling flow conditions in a well system, the well system being represented by a number of branches (1,1a) conducting hydrocarbons from at least one branch entry point (3,3a) to a branch exit point (2), at least one of said branches constituting a global well system exit point, wherein each branch has a branch entry point (3,3a) being provided with a least one flow inlet (4) and being related to known boundary conditions and with a input flow control unit (7) being related to adjustable flow characteristics for controlling the flow through said input, said boundary conditions including predetermined data concerning at least one of pressure, temperature and flow at said input flow control unit, and said branch conduit includes an branch flow control unit (6), having adjustable flow characteristics for controlling the flow through the branch.

Patent Agency Ranking