102results about "Heat exchange simulation" patented technology

The present invention relates to a computer-implemented method and system for optimizing geometric configurations within thermal energy transfer device comprising at least one thermal energy exchange channel to enhance performance. The method involves obtaining target design criteria for a physical object and defining a unit cell dimensioned such that the thermal energy transfer channel is formed by a matrix of N1 x N2 identical unit cells. Shape optimization is performed at the unit cell level by iteratively modifying the boundary surfaces of solid structures within a unit cell based on criteria including performance. Optimized design parameters are outputted and transferred to production equipment for creating an optimized thermal energy transfer device. This device comprises a matrix of structures arrayed in at least one dimension, derived from optimized unit cell models.

The present invention relates to a computer-implemented method and system for optimizing geometric configurations within thermal energy transfer device comprising at least one thermal energy exchange channel to enhance performance. The method involves obtaining target design criteria for a physical object and defining a unit cell dimensioned such that the thermal energy transfer channel is formed by a matrix of N1 × N2 identical unit cells. Shape optimization is performed at the unit cell level by iteratively modifying the boundary surfaces of solid structures within a unit cell based on criteria including performance. Optimized design parameters are outputted and transferred to production equipment for creating an optimized thermal energy transfer device. This device comprises a matrix of structures arrayed in at least one dimension, derived from optimized unit cell models.

The invention discloses a calcium-based thermochemical particle bed health status assessment method and a related device. The method comprises the following steps: acquiring a surface image of a calcium-based thermochemical particle bed; performing data enhancement on the surface image of the calcium-based thermochemical particle bed layer; inputting the surface image after data enhancement into a multi-task segmentation model to obtain a pixel-level segmentation mask; calculating the expansion rate, the agglomeration index, the crushing degree, the collapse depth and the collapse area ratio of the particle bed layer according to the pixel-level segmentation mask; the performance of the calcium-based thermochemical particle bed layer is evaluated according to the expansion rate, the agglomeration index, the crushing degree, the collapse depth and the collapse area ratio of the calcium-based thermochemical particle bed layer. The method and the related device can accurately detect the health of the calcium-based thermochemical particle bed layer.

A testing apparatus and an associated method for assessing the performance and integrity of a ground source heat exchanger installation are provided. The testing apparatus is configured to form a fluid tight, pressure resistant connection with the pipework of a ground source heat exchanger so as to create a test system. Fluid can then be pumped through the test system as the flow rate and / or fluid pressure are measured. By collecting this data about the fluid before and after it passes through the pipework the testing apparatus enables an operator to identify differences in the upstream and downstream values that may be indicative of a fault in the pipework. Preferably, fluid is circulated through the pipework in a first flow direction and then a second flow direction and measurements collected for both are compared to provide further detail of possible faults in the pipework.

To provide a method for conforming quality of a heat exchanger that does not require the use of a large amount of hot air.SOLUTION: A method for confirming quality of a heat exchanger comprises: a step ST11 of performing a hydraulic pressure test in which liquid is sealed in a pressurized state into a first flow path and a second flow path of the heat exchanger having the first flow path and the second flow path adjacent to the first flow path; a step ST12 of discharging liquid from the first flow path and the second flow path; and a step ST13 of reducing pressure in the first flow path and the second flow path with a vacuum pump to promote evaporation of the liquid remaining in the first flow path and the second flow path. In the step ST13 of promoting the evaporation of the liquid, heated gas is fed into the first flow path and the second flow path.SELECTED DRAWING: Figure 3

The invention relates to a computer-implemented method for determining a manufacturable cooling structure (6,6') for cooling a semiconductor device (9,13) wherein the method receives as input (10) at least i) physical parameters of the semiconductor device, wherein the physical parameters are related to physical properties of the semiconductor device, and ii) an array of numbers (1) indicative of a spatial power distribution of the semiconductor device, wherein the method comprises the following steps: 1) determining (11), using an topology optimization algorithm, a cooling structure (6,6') based on the received input (10), and 2) providing, as output (12), a filetype containing the determined cooling structure (6,6') in a data format based on which the determined cooling structure (6,6') can be physically manufactured (9), wherein the filetype containing the determined cooling structure is a vector-based filetype). There is further provided a semiconductor device formed using the method of the invention, a corresponding electronic design automation tool and.

The invention belongs to the field of thermal power generating unit cold end optimization, particularly relates to an air cooling island finned tube temperature field prediction method based on a physical information neural network, and aims to realize accurate, efficient and robust prediction of an air cooling island finned tube temperature field. The method comprises the steps that operation data are collected and preprocessed based on a direct air cooling unit condenser sensor, and a data set is obtained; according to a heat conduction and fluid flow control equation, a loss function is constructed in combination with initial and boundary conditions, and a physical information neural network containing a forward flow region and reverse flow region full-connection neural network and embedded with physical prior constraints is established; then training the network by using a data set, calculating the required heat exchange area and the actual heat exchange area of the downstream region through a heat balance equation during training, and selecting to start the downstream region network or combine the two-region network according to the sizes of the required heat exchange area and the actual heat exchange area; and finally, deducing the temperature distribution of a single-row air cooling unit by using the trained network, finely adjusting model parameters if the prediction deviation exceeds a threshold value, and expanding to a multi-row structure to obtain the temperature field distribution of the whole finned tube of the air cooling island.

This heat exchanger analysis device includes a chronological change acquisition unit, a temperature fluctuation region identification unit, a fluctuation frequency calculation unit, and a fatigue determination unit. The chronological change acquisition unit acquires the chronological change of a metal temperature measured at a measurement point provided to a heat exchanger. The temperature fluctuation region identification unit identifies, from the chronological change, a plurality of temperature fluctuation regions that have a temperature fluctuation range. The fluctuation frequency calculation unit calculates a fluctuation frequency of the metal temperature in a predetermined period on the basis of the plurality of temperature fluctuation regions. The fatigue determination unit determines, on the basis of the fluctuation frequency, whether a heat exchanging part at the measurement point is fatigued.

The vapor chamber (1) has a flat-plate-shaped housing (50) in which an internal space (20) is formed, and the housing (50) has formed therein: a heat-receiving section (3) that receives heat from a heat source body (2), a vapor flow path (5) through which a refrigerant (CO) vaporized in the heat-receiving section (3) moves, and a capillary flow path (4) through which the refrigerant (CO) liquefied by heat dissipation is conveyed to the heat-receiving section (3) by means of a capillary force. A plurality of spacers (42) for reinforcing the housing (50) are arranged in the internal space (20) along the surface direction of the housing (50). When [delta] c [mm] is the allowable amount of bending deformation of the housing (50), E [N / mm2] is the longitudinal elastic coefficient of the housing (50), I [mm2] is the moment of inertia of the cross section of the housing (50), and w [N / mm] is the uniform load applied to the housing (50) per unit length due to the internal pressure or external pressure generated in the internal space (20), [delta] c [mm] is the allowable amount of bending deformation of the housing (50), E [N / mm2] is the longitudinal elastic coefficient of the housing (50), I [mm2] is the moment of inertia of the cross section of the housing (50), and w [N / mm] is the uniform load. The distance (Lsp [mm]) between the spacers (42) and the joining protrusions (17) that are adjacent to each other is defined so as to satisfy the following formula.

A method can comprise dividing a heat exchanger design into a plurality of modules (10), the plurality of modules (10) arranged in a grid, each module in the plurality of modules (10) including: a first fluid conduit (161) defining an inlet (1611), an outlet (1612), and a heat-transfer surface (602), and a first flow direction, and a second fluid conduit (162) defining a second inlet, a second outlet, a second heat-transfer surface, and a second flow direction, the second flow direction different from the first flow direction; and determining a heat-transfer augmenter arrangement (1161) for the first fluid conduit (161) and the second fluid conduit (162) of each module in the plurality of modules (10) based on a stress threshold of the module (16) in the plurality of modules (10).

A method of controlling cooling water treatment may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling water fouling issues. Multiple potential causes of the perceived fouling issues can be evaluated to determine a predicted cause. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the predicted cause of the fouling.

The invention relates to a device (100) for detecting ice formation on an evaporator (10) of a heat pump (200). The evaporator (10) is designed as a heat exchanger with a pipe (12) and a plurality of fins (14) which, during normal operation, are subjected to an airflow (18) that is guided through gaps between the fins (14). At least one vibration sensor (16) is arranged on a fin (14) and determines a natural frequency (30) of the fin (14). Furthermore, the invention relates to a method for detecting ice formation on an evaporator (10) of a heat pump (200) and to the use of such a device (100) for detecting ice formation on an evaporator (10) of a heat pump (200).

A plate heat exchanger is disclosed in which several heat exchanger plates are held together in a pressure frame between a frame head equipped with media connections and a cover by means of a clamping device to form a plate stack. A flow chamber is formed between each adjacent plate by a circumferential seal. The flow chambers are alternately connected to two different pairs of media connections, so that adjacent flow chambers can be supplied with different heat exchange media. To enable monitoring of the seal condition, at least one pressure sensor is arranged on the frame head along a contour line of the circumferential seals, which measures the surface pressure acting on the circumferential seals in the plate stack.

The invention discloses transformer waste heat recovery equipment for a transformer substation, and belongs to the field of transformer waste heat utilization, the transformer waste heat recovery equipment comprises a transformer main body, and the outer side of the transformer main body is provided with a stable waste heat recovery mechanism for recovering heat of the transformer main body; the waste heat stable recovery mechanism comprises a circulating winding pipe connected to the outer side of the transformer body in a winding mode and a heat preservation shell fixedly connected to the outer portion of the transformer body, the two ends of the circulating winding pipe penetrate through the heat preservation shell and jointly communicate with a circulating liquid pipe, and the middle position of the circulating liquid pipe is connected with a medium-temperature phase change heat storage mechanism in a penetrating mode. The heat preservation shell enables the waste heat stable recovery mechanism to be kept stable to the maximum extent during heat recovery, secondly, the medium-temperature phase change heat storage mechanism and the low-temperature phase change heat storage mechanism are arranged, the waste heat recovery efficiency can be achieved to the maximum extent, the heat dissipation efficiency of the transformer body can be guaranteed, and the service life of the transformer body is prolonged. And the condition that the normal work of the transformer main body is influenced by over-high temperature is avoided.

The present invention relates to a method and to a graphical user interface (300) for managing a process engineering facility comprising at least one heat exchanger, wherein each of these heat exchangers is designed as a plate heat exchanger and each comprises a plurality of heat exchanger blocks, the method comprising: receiving sensor values from sensors which are arranged on or in the at least one heat exchanger; determining parameters which characterize an operation of the at least one heat exchanger on the basis of the received sensor values, wherein a temperature difference between heat exchanger blocks of the at least one heat exchanger is determined as a parameter; processing the sensor values and / or the parameters for a graphical display of a state of the at least one heat exchanger, wherein a service life of the at least one heat exchanger is determined as the state on the basis of the determined temperature difference between the heat exchanger blocks of the at least one heat exchanger, and a graphical display of the service life of the at least one heat exchanger is determined; outputting the processed sensor values and / or parameters in the graphical user interface (300), wherein the graphical display of the service life of the at least one heat exchanger is output in the graphical user interface (300); managing the operation of the at least one heat exchanger on the basis of the output, processed sensor values and / or parameters in the graphical user interface (300), wherein the service life of the at least one heat exchanger is monitored.

A ground testable spacecraft heat pipe has a spacecraft heat pipe thermally connected for conduction of heat through a heat acquisition cold plate to a heat acquisition riser of a bubble pump heat pipe, enabling a plug-slug flow of heated fluid into a separator, with heated liquid flowing downward through a hear rejection downcomer to a heat rejection pipe section mounted on a heat rejection cold plate for conduction of heat to a bottom end of the spacecraft heat pipe, the now-cooled liquid flowing through a heat rejection riser to an outlet in a condenser that receives the heated vapor from the separator through a vapor condensation conduit, the condenser holding the cooled fluid and vapor condensate that exits the condenser through a heat acquisition downcomer to restart the cycle.

A maintenance method for a tube heat exchanger comprising: - obtaining (S01) measurement signals resulting from the passage of a measurement probe in tubes of the heat exchanger, - determination (S02) of a reference time series corresponding to an average, at each instant, of the measurement signals, - synchronization (S03) of each measurement signal with the reference time series by applying a dynamic time distortion, DTW, on said measurement signal and the reference time series, - search for a possible anomaly (S04) by measuring a possible local deviation of a measurement signal with respect to the other measurement signals.

A fluid control device includes a housing having a plurality of surfaces that define a cavity within the housing. The housing includes an inlet to receive a fluid mixture and an outlet to direct the fluid mixture out of the housing. The fluid mixture includes a fluid combined with debris. An array of structures is disposed within the cavity and includes a plurality of structures. Each of the plurality of structures includes a first surface coupled with an inner surface of the housing and a second surface disposed a distance away from the inner surface of the housing. The array of structures includes a first portion and a second portion. The first portion is configured to interfere with the fluid mixture to separate at least some of the debris from the fluid, and the second portion is configured to direct the fluid and at least some of the debris toward the outlet.

Provided are a thermal management system modeling method and apparatus, and a device, a readable storage medium, a vehicle, a computer program product and a computer program. The method comprises: acquiring a plurality of temperature nodes in a thermal management system and a plurality of branch loops in the thermal management system; on the basis of a heat exchange component in each branch loop and / or warm water points of cooling liquids in at least two branch loops, determining temperature nodes which cannot be combined; and on the basis of the temperature nodes which cannot be combined, combining the temperature nodes in the thermal management system according to a preset combination strategy, so as to obtain a target model corresponding to the thermal management system.

Systems and methods are provided for evaluating performance of a heat exchanger, such as a condenser, using rules-based logic. A plurality of sensors can measure various operating properties of the heat exchanger and transmit corresponding measurement information to a controller. The controller can (i) evaluate the measurement information for a plurality of rules in which each rule considers an operating parameter of the heat exchanger that is based on the measurement information to provide a set of operating values; (ii) compare the set of operating values to a rules matrix in which each of a plurality of possible diagnoses for the heat exchanger are associated with a corresponding set of predetermined values from a set of the plurality of rules; and (iii) based on the comparison, determine at least one likely diagnosis for the heat exchanger from among the plurality of possible diagnoses.

According to an embodiment a method is disclosed for designing a heat sink (500- 508) comprising a container with means to guide a coolant from an inlet (100) to an outlet (200) designed to exchange heat with a component comprising the steps of generating a first mesh (600) comprising elements defining a discretized shape of a container in a massive state; generating a heat map of the container by imposing a thermal load of the component thereon thereby identifying thermal spots; repeatedly solving fluid flow equations and energy equations imposed on the first mesh through a topology optimization method by minimizing the heat sink (500-508) thermal resistance and / or maximizing the heat sink thermal uniformity; wherein the method further comprises the step of imposing a channel (400-402) on the first mesh (600) by connecting the inlet (100) with the outlet (200) via the thermal spots thereby identifying obstacles (300-302) within the first mesh (600) for the coolant; and wherein the solving step is up front performed on elements associated with the channel.

Shell-and-tube devices typically require regular maintenance. Described herein is an automated method for tracking the status of individual tubes during maintenance activities and recording status data for review and analysis. Status data may optionally be reported in real-time summary format and / or used to predict time-to-completion. The method minimizes omission errors and helps to reduce the expense of performing maintenance activities in shell-and-tube devices, including shell-and-tube reactors and heat exchangers.

A calibration method for a low-temperature plate-fin heat exchanger coupled with a hydrogen ortho- and para-catalytic conversion process comprises the following steps: first, determining the overall structure, operating conditions, and structural parameters of each fluid fin of the plate-fin heat exchanger; then, fitting the fluid physical properties, and fitting the physical properties of ortho- and para-hydrogen, respectively, for the hydrogen fluid undergoing the catalytic conversion process; then, constructing a pressure drop calculation equation group, and introducing a catalyst porous medium pressure drop source term in the fluid channel where the hydrogen ortho- and para-catalytic conversion occurs; constructing a baffle temperature node calculation equation group, and introducing a heat transfer source term caused by the expanded surface area of the catalyst if the hydrogen ortho- and para-catalytic conversion occurs in the fluid channel adjacent to the baffle; constructing a fluid temperature node calculation equation group, and introducing a hydrogen ortho- and para-conversion heat source term in the fluid channel where the hydrogen ortho- and para-catalytic conversion occurs, and introducing a component transport equation for calculating the para-hydrogen concentration; finally, iteratively solving the constructed equation group to obtain the distribution of the temperature field, pressure field, and para-hydrogen concentration field of the entire plate-fin heat exchanger. The present invention promotes the efficient use of hydrogen energy.

The invention relates to a computer-implemented method for determining a production-ready cooling structure (6, 6') for cooling a semiconductor (9, 13), wherein the method receives as input (10) at least i) physical parameters of the semiconductor, wherein the physical parameters relate to physical properties of the semiconductor, and ii) a numerical field (1) indicating a spatial power distribution of the semiconductor, wherein the method comprises the following steps: 1) determining (11), using a topology optimization algorithm, a cooling structure (6, 6') based on the received input (10), and 2) providing, as output (12), a file type containing the determined cooling structure (6, 6') in a data format on the basis of which the determined cooling structure (6, 6') can be physically manufactured (9), wherein the file type containing the determined cooling structure is a vector-based file type.Furthermore, a semiconductor formed using the method according to the invention and a corresponding automation tool for electronics design are provided.

A test probe inserted in a specific heat exchanger tube is used to produce test data of non-destructive testing of the specific heat exchanger tube. The test data of the non-destructive testing of the specific heat exchanger tube is accessed. A structural health assessment of the specific heat exchanger tube is determined, using the accessed test data of the non-destructive testing of the specific heat exchanger tube in comparison to calibration data from testing of at least one calibration standard heat exchanger tube that is more closely related to the specific heat exchanger tube than to a generic tube.

Method for operating a heat exchanger in the intake manifold of an internal combustion engine, - wherein the heat exchanger is subjected to a flow of medium during temperature control, which contains components that are deposited on and subsequently removed from a surface of the heat exchanger, resulting in a variable thickness (d S ) a layer of deposited components of the medium to be tempered on a surface of the heat exchanger and consequently the thermal resistance (M) of the heat exchanger changes during operation, so that control and / or regulation of the temperature of the medium to be tempered is affected, - where the medium to be tempered is a mixture of fresh air and exhaust gas, - where the control and / or regulation of the temperature of the medium to be tempered is model-based, - taking into account the change in thermal resistance (M) in model-based temperature control and / or temperature regulation, - where it is assumed that the thermal resistance (M) is composed of a constant component (M0) and a time-dependent component (M1(t)), where the time-dependent component (M1(t)) is further dependent on the variable thickness (d) S ) is dependent and the change in thickness (d S ) is attributed to the mass or quantity flow rate of the medium to be tempered, which flows through the heat exchanger, - wherein the deposition and removal of components of the medium to be tempered on a surface of the heat exchanger is described by a differential equation concerning the variable thickness (d S ) is described, - where a determination of parameters k appearing in the differential equation d , k R, which take into account the application to the surface of the heat exchanger and the removal from the surface of the heat exchanger during the operation of the heat exchanger.

This invention provides a gasket-type electromagnetic flow sensor and a heat exchanger. The gasket-type electromagnetic flow sensor includes a gasket body and multiple sensing units. The gasket body includes an insulating region with multiple tube holes, which are connected to multiple heat exchange tubes of a tube bundle. Multiple sensing units are respectively disposed within the gasket body and distributed within the insulating region, each corresponding to one of the tube holes. Each sensing unit includes a magnetic field generator and an electrode assembly. The magnetic field generator generates a magnetic field within the tube holes to polarize the liquid medium passing through them. The electrode assembly outputs an induced electromotive force signal based on the polarized liquid medium. This invention can monitor the flow state of the medium within each heat exchange tube of a tube bundle online, quickly locating leaking heat exchange tubes. This not only facilitates accurate monitoring and description of the flow and heat exchange state of the heat exchanger but also provides guidance for operations such as tube plugging when tube-side leaks occur.

A system (80) and method (200) for controlling corrosion in a heat exchanger (60) having a hot gas inlet (74) and outlet (76) and a cold-side inlet (68) and outlet (70) includes determining (210) a temperature at a selected first location on the heat exchanger, controlling (220) a temperature of a corrosion detection device (82) to a selected first temperature based on the temperature of the heat exchanger surface, and determining (230) a corrosion rate at the selected first location associated with the heat exchanger surface for the selected first temperature. The method (200) further includes comparing (240) the corrosion rate to a predicted corrosion rate, determining (250) a target temperature for a cold-side fluid inlet of the heat exchanger (60) based at least in part on the determined corrosion and the comparison, and controlling (260) the temperature of the cold-side fluid inlet based at least in part on the determined target inlet temperature, the determined corrosion rate, and the predicted corrosion rate.

A first temperature value indicating a temperature near a heat source, a second temperature value indicating a temperature near an outer end of a cooling rib extending from the heat source, and a third temperature value indicating an ambient temperature in the location of the heat source are used to determine fouling status.