Method and system for analyzing influence of carbon dioxide emission on environment

Abstract

The invention provides a method and system for analyzing the influence of carbon dioxide emission on the environment, and the method comprises the steps: carrying out the transient simulation of a preset influence region of carbon dioxide emission, and obtaining the transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission; determining a target area in which the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration, screening out monitoring points with local temperature rise from preset monitoring points in the target area, and taking the monitoring points with local temperature rise as target high-temperature monitoring points; calculating the average temperature of the target high-temperature monitoring point on the whole time sequence; and performing graded early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold value. According to the technical scheme provided by the invention, transient simulation is carried out in combination with the relevant parameters of the carbon dioxide emission source, the influence area of carbon dioxide emission is judged based on the temperature calculation result, and the monitoring precision and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of carbon dioxide energy saving and emission reduction, and particularly relates to a method and system for analyzing the influence of carbon dioxide emission on the environment. BACKGROUND

[0002] Carbon dioxide, as a major greenhouse gas, has a macro impact on global climate change. In addition, the high concentration of carbon dioxide in a specific local area can cause a significant local greenhouse effect, leading to an abnormal increase in the environmental temperature of the area. In the related art, the influence of carbon dioxide emission is monitored based on direct monitoring by field sensors, which cannot predict and simulate the influence under different emission scenarios or weather conditions. The analysis method in the related art mainly focuses on steady-state simulation or only simulates the steady-state distribution of carbon dioxide concentration, and cannot realize analysis combined with a transient carbon dioxide concentration field and a temperature field. Therefore, there is an urgent need to provide an analysis method that can combine transient data of carbon dioxide emission and accurately and efficiently evaluate the influence of carbon dioxide emission on the local environmental temperature. SUMMARY

[0003] The application provides a method and system for analyzing the influence of carbon dioxide emission on the environment, to at least solve the technical problem of low monitoring accuracy and efficiency of the influence area of carbon dioxide emission.

[0004] The first aspect of the application provides a method for analyzing the influence of carbon dioxide emission on the environment, which comprises the following steps:

[0005] A transient finite element model of a preset influence area of carbon dioxide emission is constructed based on CFD, the transient finite element model is meshed to obtain a meshing result, and a boundary condition of the preset influence area changing over time is input. The transient finite element model is simulated based on the meshing result and the boundary condition to obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission.

[0006] A target area where the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration is determined based on the transient carbon dioxide concentration data, and each monitoring point with local temperature rise in each preset monitoring point in the target area is screened based on the transient temperature data, and each monitoring point with local temperature rise is taken as a target high-temperature monitoring point.

[0007] Transient temperature data of the target high-temperature monitoring point in the entire time sequence is obtained, and the average temperature of the target high-temperature monitoring point in the entire time sequence is calculated.

[0008] Based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold, a graded early warning is performed.

[0009] Preferably, the boundary conditions include: an inlet wind speed condition, an inlet wind direction condition, a pressure outlet condition, and a no-slip wall condition.

[0010] Preferably, the local temperature rise is a difference between transient temperatures in a preset time sequence before and after the carbon dioxide emission.

[0011] Preferably, the grading warning based on the average temperature of the target high-temperature monitoring point and the first preset temperature threshold value includes:

[0012] If the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold value, first temperature warning information is generated.

[0013] If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold value, it is determined whether the average temperature of the target high-temperature monitoring point meets a preset second temperature warning condition, and if so, second temperature warning information is generated.

[0014] Further, if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold value, it is determined whether the average temperature of the target high-temperature monitoring point meets a preset second temperature warning condition, and if so, second temperature warning information is generated, including:

[0015] If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold value, a temperature daily variation coefficient of the target high-temperature monitoring point is calculated based on transient temperature data of the target high-temperature monitoring point.

[0016] If the temperature daily variation coefficient is greater than a preset variation coefficient threshold value, second temperature warning information is generated.

[0017] The second aspect embodiment of the present application proposes an analysis system for the influence of carbon dioxide emission on the environment, characterized in that the system comprises:

[0018] A first calculation module is configured to construct a transient finite element model of a preset influence area of carbon dioxide emission based on CFD, perform grid division on the transient finite element model to obtain a grid division result, input boundary conditions of the preset influence area changing over time, perform transient simulation on the transient finite element model based on the grid division result and the boundary conditions, and obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission.

[0019] determining, based on the transient carbon dioxide concentration data, a target region in which the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration, obtaining, based on the transient temperature data, local temperature rises of each of the preset monitoring points in the target region, and determining, as a target high-temperature monitoring point, a monitoring point in which the local temperature rise is higher than a preset local temperature rise threshold;

[0020] a second calculating module configured to obtain transient temperature data of the target high-temperature monitoring point over an entire time sequence, and calculate an average temperature of the target high-temperature monitoring point over the entire time sequence;

[0021] a judging module configured to obtain transient temperature data of the target high-temperature monitoring point over an entire time sequence, and calculate an average temperature of the target high-temperature monitoring point over the entire time sequence, and perform hierarchical early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold.

[0022] Preferably, the judging module further comprises:

[0023] a first judging submodule configured to generate first temperature early warning information if the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold;

[0024] a second judging submodule configured to, if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, judge whether the average temperature of the target high-temperature monitoring point meets a preset second temperature early warning condition, and generate second temperature early warning information if the average temperature meets the preset second temperature early warning condition.

[0025] Further, if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, judging whether the average temperature of the target high-temperature monitoring point meets a preset second temperature early warning condition, and generating second temperature early warning information if the average temperature meets the preset second temperature early warning condition, comprises:

[0026] if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, calculating a temperature daily variation coefficient of the target high-temperature monitoring point based on the transient temperature data of the target high-temperature monitoring point;

[0027] generating the second temperature early warning information if the temperature daily variation coefficient is greater than a preset variation coefficient threshold.

[0028] A third aspect of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement the method of the first aspect.

[0029] The fourth aspect of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method according to the first aspect of the present application.

[0030] The technical solution provided by the embodiments of the present application at least brings the following beneficial effects:

[0031] The present application provides a method for analyzing the influence of carbon dioxide emission on the environment, a transient finite element model of a preset influence area of carbon dioxide emission is constructed based on CFD, the transient finite element model is meshed to obtain a meshing result, and a boundary condition varying with time of the preset influence area is input, the transient finite element model is simulated based on the meshing result and the boundary condition to obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission; based on the transient carbon dioxide concentration data, a target area where the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration is determined, and based on the transient temperature data, each monitoring point with local temperature rise is screened out in each preset monitoring point in the target area, and each monitoring point with local temperature rise is taken as a target high-temperature monitoring point; the transient temperature data of the target high-temperature monitoring point in the entire time sequence is obtained, the average temperature of the target high-temperature monitoring point in the entire time sequence is calculated, and a graded early warning is performed based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold. The technical solution provided by the present application combines transient simulation of relevant parameters of carbon dioxide emission sources, judges the influence area of carbon dioxide emission based on temperature calculation results, and improves the accuracy and efficiency of monitoring.

[0032] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0034] Figure 1 A flowchart of a method for analyzing the influence of carbon dioxide emission on the environment according to an embodiment of the present application is provided.

[0035] Figure 2 A structure of a system for analyzing the influence of carbon dioxide emission on the environment according to an embodiment of the present application is provided. Figure 1 ;

[0036] Figure 3 A structure of a system for analyzing the influence of carbon dioxide emission on the environment according to an embodiment of the present application is provided.Figure 2 . DETAILED DESCRIPTION

[0037] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0038] The method for analyzing the influence of carbon dioxide emission on the environment provided by the present application comprises: constructing a transient finite element model of a preset influence area of carbon dioxide emission based on CFD, performing grid division on the transient finite element model to obtain a grid division result, inputting a boundary condition varying with time of the preset influence area, performing transient simulation on the transient finite element model based on the grid division result and the boundary condition, and obtaining transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission; determining a target area in which the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration based on the transient carbon dioxide concentration data, and filtering out each monitoring point with local temperature rise in each preset monitoring point in the target area based on the transient temperature data, and taking each monitoring point with local temperature rise as a target high-temperature monitoring point; obtaining transient temperature data of the target high-temperature monitoring point in the entire time sequence, calculating the average temperature of the target high-temperature monitoring point in the entire time sequence, and performing graded early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold. The technical solution provided by the present application combines transient simulation of relevant parameters of carbon dioxide emission sources, judges the influence area of carbon dioxide emission based on temperature calculation results, and improves the accuracy and efficiency of monitoring.

[0039] A method for analyzing the influence of carbon dioxide emission on the environment and a system thereof are described below with reference to the accompanying drawings.

[0040] Embodiment One

[0041] Figure 1 A flowchart of a method for analyzing the influence of carbon dioxide emission on the environment provided according to an embodiment of the present application is shown in FIG. Figure 1 The method comprises:

[0042] Step 1: Construct a transient finite element model of the preset influence area of carbon dioxide emission based on CFD, perform meshing on the transient finite element model to obtain a meshing result, input the boundary conditions of the preset influence area varying with time, perform transient simulation on the transient finite element model based on the meshing result and the boundary conditions, and obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point within a preset time sequence before and after carbon dioxide emission.

[0043] CFD, which stands for Computational Fluid Dynamics, is a discipline that uses computers and numerical methods to analyze, simulate, and predict systems involving fluid flow and heat transfer and other physical phenomena. Continuous fluid domains can be discretized into countless small units, and then the physical equations governing fluid motion (such as the Navier-Stokes equation) are solved on each unit to simulate the detailed information of the entire flow field. When applying CFD for modeling and calculation, a geometric model needs to be defined, which can be modeled by creating or importing a three-dimensional model of the object or region to be analyzed. Then meshing is needed to divide the calculation region into a large number of small, regular units (such as tetrahedrons, hexahedrons). The quality of the mesh directly determines the accuracy and efficiency of the calculation, and the finer the mesh, the higher the calculation precision, but also increases the amount of calculation, so the appropriate mesh accuracy can be selected according to the actual demand. After the mesh is divided, the physical model and boundary conditions can be set, such as specifying the type of fluid, properties (such as density, viscosity), and flow boundary conditions. After completing the above steps, solving can be performed, which is the core calculation stage of CFD. The solver will iteratively solve complex conservation equations (mass, momentum, and energy conservation) on each mesh element based on the pre-processing settings until a convergent solution is obtained, and the calculation result file is generated.

[0044] After the calculation is completed, the vast amount of numerical results generated by the solution can be visualized and analyzed. Common methods include: displaying cloud maps of pressure, temperature, velocity, and other physical quantities to visually display the flow direction and velocity vector / streamline maps of the fluid, and demonstrating the animation of unsteady (transient) flow over time.

[0045] In the embodiments of the present disclosure, first, an influence area of carbon dioxide emission is preliminarily preset as a preset influence area according to the position information of the carbon dioxide emission source, the surrounding environment information and the like, and then a transient finite element model is constructed based on CFD. The target of the transient model simulation is to study the process of the physical field changing with time, the input physical quantity can be a function of time and space, and the calculation result on a specific time sequence can be dynamically obtained. The input boundary condition can change with time, that is, the boundary condition can be a function of time. Then, meshing is performed, and after meshing, solving calculation is performed. A plurality of monitoring points can be preset as monitoring samples, and the transient carbon dioxide concentration data and the transient temperature data of each preset monitoring point in the preset time sequence before and after the carbon dioxide emission are obtained. It should be noted that the calculation results before and after the carbon dioxide emission can be obtained by twice model calculation, that is, the first time is to input the parameters before the carbon dioxide emission for simulation, and the second time is to input the parameters after the carbon dioxide emission for simulation to obtain the calculation results before and after the carbon dioxide emission; or the parameters before and after the carbon dioxide emission can be fused into a boundary condition function for one-time calculation.

[0046] It should be noted that in the embodiments of the present disclosure, the boundary conditions include: inlet wind speed conditions, inlet wind direction conditions, pressure outlet conditions and no-slip wall conditions. The boundary conditions can also include design parameters of the carbon dioxide emission source, such as whether to continuously emit, whether the position moves or not, and the like, so as to obtain dynamic results according to the emission source information. The required boundary conditions can also be input according to actual needs, and the present application is not limited.

[0047] Step 2: determining a target area in which the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration based on the transient carbon dioxide concentration data, and screening each monitoring point of local temperature rise in each preset monitoring point in the target area based on the transient temperature data, and taking each monitoring point of the local temperature rise as a target high-temperature monitoring point.

[0048] A preset transient carbon dioxide concentration can be set as a judgment standard of the carbon dioxide concentration, and the monitoring points with carbon dioxide concentration greater than the preset transient carbon dioxide concentration at any time are screened out from the time sequence data of all the monitoring points to form a target area.

[0049] After the target area is determined, the transient temperature in the target area can be calculated to obtain the monitoring points with local temperature rise. It should be noted that in the embodiments of the present disclosure, the local temperature rise is the difference between the transient temperatures in the preset time sequence before and after the carbon dioxide emission.

[0050] For each monitoring point in the first area, calculate its temperature rise value. Let the transient temperature data sequence of the target high-temperature monitoring point be T = [t1, t2,..., tn], then: n

[0051] ΔT i = T i1 - T i2 ;

[0052] Wherein, T is the transient temperature data sequence of the target high-temperature monitoring point, t i is the temperature at the i-th time point, n is the length of the time sequence, ΔT i is the local temperature rise at the i-th time point, T i1 is the transient temperature after carbon dioxide emission at the i-th time, T i2 is the transient temperature before carbon dioxide emission at the i-th time.

[0053] A preset local temperature rise threshold can be set, and if the temperature rise of a monitoring point is greater than the preset local temperature rise threshold, it can be considered that the local temperature rise of the monitoring point is too high. All monitoring points with local temperature rise higher than the preset local temperature rise threshold are determined as target high-temperature monitoring points.

[0054] Step 3: Obtain the transient temperature data of the target high-temperature monitoring point in the entire time sequence, and calculate the average temperature of the target high-temperature monitoring point in the entire time sequence.

[0055] The sum of all transient temperatures in the time sequence is divided by the number of data points (i.e. the length of the time sequence) to obtain the average temperature of the monitoring point in the entire monitoring period. For each target high-temperature monitoring point, calculate its average temperature in the entire time sequence. The average temperature of the i-th time sequence monitoring point is:

[0056]

[0057] The transient temperature may fluctuate due to accidental factors, and the average temperature can reflect the more real temperature trend of the target monitoring point in a period of time, avoiding the contingency of single moment data. Through this calculation, the overall temperature level of the target monitoring point can be quantified, providing data basis for subsequent graded warning.

[0058] Step 4: Based on the average temperature of the target high-temperature monitoring point and the first preset temperature threshold, graded warning is performed.

[0059] A first preset temperature threshold can be set to determine whether to perform temperature warning on the target high-temperature monitoring point.

[0060] ​The hierarchical early warning is performed based on a comparison of the average temperature and the first preset temperature threshold. The average temperature is an index reflecting persistent heat exposure. The higher the average temperature, the more persistent and severe the heat risk at the point is. By comparing the actual temperature characteristics (average temperature) of the target monitoring point with the preset safety standard (temperature threshold), the risk is divided into different levels and corresponding early warning information is generated, allowing the system to issue early warnings of different levels. This hierarchical management makes emergency response more scientific and efficient, avoiding resource waste or inadequate response caused by "one-size-fits-all" response.

[0061] It should be noted that in the embodiments of the present disclosure, the hierarchical early warning based on the average temperature of the target high-temperature monitoring point and the first preset temperature threshold includes: if the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold, generating first temperature early warning information; and if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, determining whether the average temperature of the target high-temperature monitoring point meets a preset second temperature early warning condition, and if so, generating second temperature early warning information.

[0062] When generating early warning information, the average temperature of the target high-temperature monitoring point can be compared with the first preset temperature threshold. If the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold, first temperature early warning information is generated. The first early warning information can prompt that the carbon dioxide concentration is too high and has a greater impact on the environment temperature.

[0063] If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, it means that the target high-temperature monitoring point has a temperature rise due to carbon dioxide emission, but the temperature rise is within the preset range. A preset second temperature early warning condition can be set. If the average temperature of the target high-temperature monitoring point meets the preset second temperature early warning condition, second temperature early warning information is generated.

[0064] It should be noted that in the embodiments of the present disclosure, if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, it is determined whether the average temperature of the target high-temperature monitoring point meets a preset second temperature early warning condition, and if so, second temperature early warning information is generated. This includes: if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, the temperature daily variation coefficient of the target high-temperature monitoring point is calculated based on the transient temperature data of the target high-temperature monitoring point; and if the temperature daily variation coefficient is greater than a preset variation coefficient threshold, second temperature early warning information is generated.

[0065] The temperature daily variation coefficient measures the fluctuation degree of temperature within a day. In a normal region mainly affected by solar radiation, the temperature daily variation should be regular, and the variation coefficient should be in a relatively stable range. If the variation coefficient is greater than a preset variation coefficient threshold, it means that the temperature daily variation is enhanced. This is a very strong signal indicating that there is an additional heat source which is stable and not affected by the day-night cycle. The greenhouse effect caused by carbon dioxide accumulation is just such a heat source, and at this time, the second temperature warning information can be generated.

[0066] The application provides an analysis method for the influence of carbon dioxide emission on the environment. A transient finite element model of a preset influence area of carbon dioxide emission is constructed based on CFD. The transient finite element model is meshed to obtain a meshing result. Boundary conditions of the preset influence area changing over time are input. The transient finite element model is simulated based on the meshing result and the boundary conditions to obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission. Target areas with transient carbon dioxide concentration higher than a preset transient carbon dioxide concentration are determined based on the transient carbon dioxide concentration data. Each monitoring point with local temperature rise is screened out from each preset monitoring point in the target areas based on the transient temperature data, and the monitoring points with local temperature rise are taken as target high-temperature monitoring points. Transient temperature data of the target high-temperature monitoring points in the entire time sequence are obtained, and the average temperature of the target high-temperature monitoring points in the entire time sequence is calculated. Hierarchical warning is performed based on the average temperature of the target high-temperature monitoring points and a first preset temperature threshold. The technical scheme provided in the embodiments of the application calculates the transient carbon dioxide concentration data and the transient temperature data in a preset time sequence before and after carbon dioxide emission through a finite element model, preliminarily determines target areas based on the carbon dioxide concentration data, further finely judges whether the temperature rise caused by carbon dioxide emission exceeds a preset range through the transient temperature data, and performs hierarchical warning, thereby improving the accuracy and efficiency of carbon dioxide emission monitoring.

[0067] Embodiment Two

[0068] Figure 2 A structural diagram of an analysis system for the influence of carbon dioxide emission on the environment according to an embodiment of the application is shown in FIG. 1. Figure 2 The system includes:

[0069] The first calculation module 100 is configured to construct a transient finite element model of a preset influence area of carbon dioxide emission based on CFD, perform meshing on the transient finite element model to obtain a meshing result, input a boundary condition varying with time of the preset influence area, perform transient simulation on the transient finite element model based on the meshing result and the boundary condition, and obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission.

[0070] The determination module 200 is configured to determine a target area in which the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration based on the transient carbon dioxide concentration data, obtain local temperature rise of each preset monitoring point in the target area based on the transient temperature data, and determine a monitoring point with a local temperature rise higher than a preset local temperature rise threshold as a target high-temperature monitoring point.

[0071] The second calculation module 300 is configured to obtain transient temperature data of the target high-temperature monitoring point in the entire time sequence, and calculate an average temperature of the target high-temperature monitoring point in the entire time sequence.

[0072] The judgment module 400 is configured to obtain transient temperature data of the target high-temperature monitoring point in the entire time sequence, calculate an average temperature of the target high-temperature monitoring point in the entire time sequence, and perform hierarchical early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold.

[0073] Figure 3 The structure of the analysis system for the influence of carbon dioxide emission on the environment is shown Figure 2 The judgment module further includes:

[0074] The first judgment submodule 401 is configured to generate first temperature early warning information if the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold.

[0075] The second judgment submodule 402 is configured to judge whether the average temperature of the target high-temperature monitoring point meets a preset second temperature early warning condition if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, and generate second temperature early warning information if the average temperature of the target high-temperature monitoring point meets the preset second temperature early warning condition.

[0076] It should be noted that the judgment of whether the average temperature of the target high-temperature monitoring point meets the preset second temperature early warning condition if the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, and the generation of the second temperature early warning information if the average temperature of the target high-temperature monitoring point meets the preset second temperature early warning condition include:

[0077] If the average temperature of the target high-temperature monitoring point is less than a first preset temperature threshold, based on transient temperature data of the target high-temperature monitoring point, a temperature daily variation coefficient of the target high-temperature monitoring point is calculated.

[0078] If the temperature daily variation coefficient is greater than a preset variation coefficient threshold, second temperature early warning information is generated.

[0079] In summary, the analysis system for environmental impact of carbon dioxide emission provided in the embodiment is based on CFD to construct a transient finite element model of a preset impact area of carbon dioxide emission, to perform grid division on the transient finite element model to obtain a grid division result, and to input a boundary condition of the preset impact area varying with time, to perform transient simulation on the transient finite element model based on the grid division result and the boundary condition, to obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in a preset time sequence before and after carbon dioxide emission; to determine a target area where the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration based on the transient carbon dioxide concentration data, and to filter out each monitoring point with local temperature rise in each preset monitoring point in the target area based on the transient temperature data, and to take each monitoring point with local temperature rise as a target high-temperature monitoring point; to obtain transient temperature data of the target high-temperature monitoring point in the entire time sequence, to calculate average temperature of the target high-temperature monitoring point in the entire time sequence; and to perform hierarchical early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold. The technical solution provided in the embodiment calculates transient carbon dioxide concentration data and transient temperature data in a preset time sequence before and after carbon dioxide emission through a finite element model, preliminarily determines a target area based on carbon dioxide concentration data, further finely judges whether temperature rise caused by carbon dioxide emission exceeds a preset range through transient temperature data, and performs hierarchical early warning, thereby improving the accuracy and efficiency of carbon dioxide emission monitoring.

[0080] Embodiment Three

[0081] To implement the above embodiment, the present disclosure further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to Embodiment One when executing the program.

[0082] Embodiment Four

[0083] To implement the above embodiment, the present disclosure further provides a computer readable storage medium having a computer program stored thereon, wherein the program is executable on a processor to implement the method according to Embodiment One.

[0084] In the description of the application, reference can be made to terms such as "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. It is intended that there are at least one embodiment or example where the particular feature, structure, material or characteristic described is included in at least one embodiment or example of the application. Descriptive terms such as "exemplary" in relation to any term used herein should not be understood as implying that the particular feature, structure, material or characteristic so described is essential or indispensable to the working of the application. The illustrative description of the application is not intended to be complete description enough to enable a person skilled in the art to make and use the application and make modifications or variations without undue experimentation. The description of the application is intended to be illustrative and not restrictive. The scope of the application is defined by the appended claims and their equivalents.

[0085] Any process or method descriptions or blocks in flow charts described herein and elsewhere in this specification can be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logic functions or steps in the process. As would be understood by those of ordinary skill in the art that the functions or steps in the processes described in this specification can be performed in an arbitrary order, in substantially simultaneous fashion, or in reverse order, depending on the functionality involved, as should be understood by those skilled in the art.

[0086] Although the embodiments of the application have been shown and described above, it is to be understood that the above-described embodiments are merely exemplary, and are not to be taken as limiting the scope of the application. Those skilled in the art can make modifications, alterations, replacements and variations to the above-described embodiments within the scope of the application.

Claims

1. A method for analyzing the environmental impact of carbon dioxide emissions, characterized in that, The method includes: A transient finite element model of a preset influence area of ​​carbon dioxide emissions is constructed based on CFD. The transient finite element model is meshed to obtain the meshing result. The boundary conditions of the preset influence area changing over time are input. Based on the meshing result and the boundary conditions, the transient finite element model is simulated to obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in the preset time series before and after carbon dioxide emissions. Based on the transient carbon dioxide concentration data, a target area where the transient carbon dioxide concentration is higher than the preset transient carbon dioxide concentration is determined. Based on the transient temperature data, monitoring points with local temperature rise are selected from each preset monitoring point in the target area, and the monitoring points with local temperature rise are used as target high temperature monitoring points. Acquire the transient temperature data of the target high-temperature monitoring point over the entire time series, and calculate the average temperature of the target high-temperature monitoring point over the entire time series; Based on the average temperature of the target high-temperature monitoring point and the first preset temperature threshold, a graded early warning is issued.

2. The method as described in claim 1, characterized in that, The boundary conditions include: inlet wind speed condition, inlet wind direction condition, pressure outlet condition, and non-slip wall condition.

3. The method as described in claim 1, characterized in that, The local temperature rise is the difference between the transient temperatures within a preset time series before and after carbon dioxide emission.

4. The method as described in claim 1, characterized in that, The step of providing graded early warnings based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold includes: If the average temperature of the target high-temperature monitoring point is greater than or equal to the first preset temperature threshold, a first temperature warning message is generated. If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, determine whether the average temperature of the target high-temperature monitoring point meets the preset second temperature warning condition. If it does, generate the second temperature warning information.

5. The method as described in claim 4, characterized in that, If the average temperature of the target high-temperature monitoring point is less than a first preset temperature threshold, it is determined whether the average temperature of the target high-temperature monitoring point meets a preset second temperature warning condition. If it does, a second temperature warning message is generated, including: If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, the daily temperature variation coefficient of the target high-temperature monitoring point is calculated based on the transient temperature data of the target high-temperature monitoring point. If the daily temperature variation coefficient is greater than a preset variation coefficient threshold, a second temperature warning message is generated.

6. A system for analyzing the environmental impact of carbon dioxide emissions, characterized in that, The system includes: The first calculation module is used to construct a transient finite element model of a preset influence area of ​​carbon dioxide emissions based on CFD, perform mesh generation on the transient finite element model to obtain the mesh generation result, input the boundary conditions of the preset influence area as a function of time, perform transient simulation on the transient finite element model based on the mesh generation result and the boundary conditions, and obtain transient carbon dioxide concentration data and transient temperature data of each preset monitoring point in the preset time series before and after carbon dioxide emissions. The determination module is used to determine, based on the transient carbon dioxide concentration data, a target area where the transient carbon dioxide concentration is higher than a preset transient carbon dioxide concentration, and based on the transient temperature data, to obtain the local temperature rise of each preset monitoring point within the target area, and to determine the monitoring point where the local temperature rise is higher than a preset local temperature rise threshold as the target high temperature monitoring point. The second calculation module is used to acquire the transient temperature data of the target high-temperature monitoring point over the entire time series and to calculate the average temperature of the target high-temperature monitoring point over the entire time series. The judgment module is used to acquire transient temperature data of the target high-temperature monitoring point over the entire time series, calculate the average temperature of the target high-temperature monitoring point over the entire time series, and perform graded early warning based on the average temperature of the target high-temperature monitoring point and a first preset temperature threshold.

7. The system as described in claim 6, characterized in that, The judgment module also includes: The first judgment submodule is used to generate a first temperature warning message if the average temperature of the target high temperature monitoring point is greater than or equal to a first preset temperature threshold. The second judgment submodule is used to determine whether the average temperature of the target high temperature monitoring point meets the preset second temperature warning condition if the average temperature of the target high temperature monitoring point is less than the first preset temperature threshold. If it does, the second temperature warning information is generated.

8. The system as described in claim 7, characterized in that, If the average temperature of the target high-temperature monitoring point is less than a first preset temperature threshold, it is determined whether the average temperature of the target high-temperature monitoring point meets a preset second temperature warning condition. If it does, a second temperature warning message is generated, including: If the average temperature of the target high-temperature monitoring point is less than the first preset temperature threshold, the daily temperature variation coefficient of the target high-temperature monitoring point is calculated based on the transient temperature data of the target high-temperature monitoring point. If the daily temperature variation coefficient is greater than a preset variation coefficient threshold, a second temperature warning message is generated.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method as described in any one of claims 1-5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1-5.

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