Dynamic sulfur content assignment ship emission measuring and calculating method and related device
Patent Information
- Application Number
- CN202510005561.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-05-06
Smart Images
Figure CN119939912A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ship emission control, and in particular to a ship emission measurement method and related devices with dynamic sulfur content assignment. Background Art
[0002] SO2 is an important pollutant emitted by ships and is a major source of PM. 2.5 With the widespread implementation of emission control policies, the sulfur content of marine fuel has received increasing attention as an important indicator to measure whether ships comply with environmental regulations.
[0003] However, existing ship emission models have the defect of low accuracy when calculating sulfur content. Summary of the invention
[0004] The purpose of this application is to provide a ship emission calculation method and related devices with dynamic sulfur content assignment, which can improve the accuracy of sulfur content calculation, thereby improving the accuracy of ship emission calculation.
[0005] To achieve the above objectives, this application provides the following solutions:
[0006] In a first aspect, the present application provides a method for calculating ship emissions with dynamic sulfur content assignment, comprising:
[0007] Obtain the regulatory section ship emission data and regulatory section field observation data under the target area, wherein the regulatory section ship emission data is the assumed data obtained according to the ship emission model, the regulatory section ship emission data includes IMO number, engine power, ship type, sulfur oxide emissions and nitrogen oxide emissions, and the regulatory section field observation data is the monitoring data of the monitoring point, and the regulatory section field observation data includes sulfur oxide concentration and nitrogen oxide concentration;
[0008] The sulfur content is calculated by back-calculating the sulfur content according to the field observation data of the regulatory section, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit, wherein the sulfur content limit is a variable value determined according to the IMO number and / or the determination data, and the determination data includes the ship type and the engine power;
[0009] Correcting the ship emission model according to the back-calculated sulfur content to obtain a corrected ship emission model;
[0010] A ship emission inventory is obtained according to the modified ship emission model.
[0011] In a second aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for assigning dynamic sulfur content of ship emissions as described in the first aspect above.
[0012] In a third aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-described methods for assigning dynamic sulfur content in ship emissions.
[0013] In a fourth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above-mentioned methods for assigning dynamic sulfur content in ship emissions.
[0014] According to the specific embodiments provided in this application, this application has the following technical effects:
[0015] The present application provides a ship emission calculation method with dynamic sulfur content assignment and related devices, the method comprising: obtaining the ship emission data of the regulatory section under the target area and the field observation data of the regulatory section; calculating the sulfur content inversely according to the field observation data of the regulatory section, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit; correcting the ship emission model according to the inversely calculated sulfur content, and obtaining the ship emission inventory based on the corrected ship emission model. Since the present application deeply combines the ship emission model and field observation data, comprehensively considers the ship type and the sulfur content limit of the regulatory area, realizes the dynamic assignment of sulfur content, improves the accuracy of sulfur content calculation, and thus improves the accuracy of ship emission measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is an application environment diagram of a ship emission calculation method with dynamic sulfur content assignment in Example 1 of the present application;
[0018] Figure 2 A schematic diagram of a process flow of a ship emission calculation method with dynamic sulfur content assignment provided in Example 1 of the present application;
[0019] Figure 3 This is a conceptual diagram of a ship emission calculation method for dynamically assigning sulfur content in Example 1 of the present application;
[0020] Figure 4 A schematic diagram of the structure of a computer device provided in Example 2 of the present application. DETAILED DESCRIPTION
[0021] Research has found that SO2 emissions are directly related to the sulfur content of fuel oil. There are differences in the types of fuel oil used by ships of different ship types, and the sulfur content of the fuel oil is also different. When ships sail in different areas, they are subject to the corresponding emission area control policies and are required to use fuel oil below the corresponding sulfur content limit. The existing ship emission model fails to effectively combine field observation data, nor does it take into account the dynamic changes in sulfur content, resulting in the accuracy of the sulfur content calculation results being difficult to meet actual regulatory needs, and the accuracy of the model output results needs to be improved. Therefore, this embodiment provides a ship emission calculation method and related devices with dynamic sulfur content assignment, which dynamically assigns the sulfur content of ship fuel oil according to the region, ship type and observation data to improve the accuracy of the sulfur content calculation results.
[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0024] Example 1
[0025] The present invention provides a method for calculating ship emissions with dynamic sulfur content assignment, which can be applied to Figure 1In the application environment shown. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be set up separately, integrated on the server 104, or placed on the cloud or other servers. The terminal 102 can send the regulatory section ship emission data and the regulatory section field observation data under the target area to be processed to the server 104. After receiving the regulatory section ship emission data and the regulatory section field observation data under the target area to be processed, the server 104 calculates the sulfur content based on the regulatory section field observation data, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit, wherein the sulfur content limit is a variable value determined according to the IMO number and / or the judgment data, and the judgment data includes the ship type and the engine power; the ship emission model is corrected according to the reversed sulfur content to obtain a corrected ship emission model; the ship emission inventory is obtained according to the corrected ship emission model. The server 104 can feedback the obtained ship emission inventory to the terminal 102. In addition, in some embodiments, the ship emission calculation method with dynamic sulfur content assignment can also be implemented independently by the server 104 or the terminal 102. For example, the terminal 102 can directly use the ship emission calculation method with dynamic sulfur content assignment to process the regulatory section ship emission data and the regulatory section field observation data under the target area to be processed, or the server 104 can obtain the regulatory section ship emission data and the regulatory section field observation data under the target area to be processed from the data storage system, and use the ship emission calculation method with dynamic sulfur content assignment to process them.
[0026] The terminal 102 may be, but is not limited to, various desktop computers, laptop computers, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be smart speakers, smart TVs, smart air conditioners, smart vehicle-mounted devices, etc. The portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The server 104 may be implemented as an independent server or a server cluster consisting of multiple servers, or may be a cloud server.
[0027] In an exemplary embodiment, Figure 2 As shown, a method for calculating ship emissions with dynamic sulfur content assignment is provided. The method is executed by a computer device, and can be executed by a computer device such as a terminal or a server alone, or can be executed by a terminal and a server together. In the embodiment of the present application, the method is applied to Figure 1 The server 104 in FIG. 1 is used as an example to illustrate, including:
[0028] S1: Obtain the regulatory section ship emission data and regulatory section field observation data under the target area, wherein the regulatory section ship emission data is assumed data obtained based on the ship emission model, and the regulatory section ship emission data includes IMO number, engine power, ship type, sulfur oxide emissions and nitrogen oxide emissions, and the regulatory section field observation data is the monitoring data of the monitoring point, and the regulatory section field observation data includes sulfur oxide concentration and nitrogen oxide concentration.
[0029] S11: Obtain the regulated cross-section ship emission data in the target area, including:
[0030] S11-1: Obtain ship emission data in the target area.
[0031] S11-2: Draw ship trajectories based on ship positions in the target area ship emission data.
[0032] S11-3: According to the ship trajectory and the supervision section, determine whether the ship passes through the supervision section to obtain a first judgment result.
[0033] S11-4: Select the target area ship emission data for which the first judgment result is yes as the supervision section ship emission data.
[0034] S11-4-1: When the first judgment result is yes and the time interval between the target trajectory points is greater than the time interval threshold, the ship trajectory formed between the first target trajectory points is interpolated to obtain an interpolated ship trajectory, wherein the first target trajectory points are two ship trajectory points on the ship trajectory adjacent to the intersection point, and the intersection point is the intersection point of the ship trajectory and the supervision section.
[0035] S11-4-2: Select the target area ship emission data corresponding to the second target trajectory point as the regulatory section ship emission data, wherein the second target trajectory point is a ship trajectory point whose distance from the intersection point is less than a distance threshold.
[0036] S2: Calculate the sulfur content based on the field observation data of the regulatory section, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit, wherein the sulfur content limit is a variable value determined based on the IMO number and / or judgment data, and the judgment data includes the ship type and the engine power.
[0037] S21: Determine the peak information in the field observation data of the regulatory section according to preset peak parameters, wherein the peak information includes the peak occurrence time and the peak prominence.
[0038] S21-1: De-noising the field observation data of the regulatory section to obtain de-noised field observation data of the regulatory section.
[0039] S21-2: Determine the peak information in the denoised supervision cross-section field observation data according to preset peak parameters.
[0040] S22: Calculate the sulfur content based on the peak prominence, target sulfur oxide emissions, target nitrogen oxide emissions and sulfur content limit, wherein the target sulfur oxide emissions and the target nitrogen oxide emissions are the sulfur oxide emissions with a preset time interval from the target peak, the target nitrogen oxide emissions are the nitrogen oxide emissions with a preset time interval from the target peak, and the target peak occurrence time is the peak occurrence time within the time period when the ship passes through the regulatory section.
[0041] In this embodiment, the process of determining the sulfur content limit specifically includes the following steps:
[0042] Whether the ship is an inland river ship is determined according to the IMO number to obtain a second determination result.
[0043] When the second determination result is yes, the fuel type is determined according to the inland river vessel.
[0044] When the second judgment result is no, the fuel type is determined in combination with the ship type and the engine power.
[0045] The sulfur content limits corresponding to different ships are determined according to the fuel type.
[0046] S3: Correcting the ship emission model according to the back-calculated sulfur content to obtain a corrected ship emission model.
[0047] S4: Obtaining a ship emission inventory according to the modified ship emission model.
[0048] This embodiment deeply combines field observation data and ship emission model output data, comprehensively considers the navigation area and ship type, establishes a dynamic sulfur content assignment algorithm for ship emissions, and improves the accuracy of sulfur content calculation.
[0049] In order to make those skilled in the art more clear about the specific process of the dynamic sulfur content assignment algorithm of ship emissions in this embodiment, the following Figure 3 Provide a detailed explanation.
[0050] In this embodiment, the dynamic sulfur content assignment algorithm for ship emissions includes the following steps:
[0051] Step 1: Access the existing ship emission model to obtain the output ship emission data, including ship type, IMO number (if the ship has no IMO number, this field is empty), ship location (latitude and longitude), engine power, SO2 emissions, NO x Emissions and other information, the data format is shown in Table 1.
[0052] Table 1 Ship emission data
[0053]
[0054] Step 2: Determine whether the IMO number of the ship is a null value. If it is not a null value, it is determined to be a seagoing vessel; if it is a null value, it is determined to be an inland river vessel.
[0055] Step 3: When it is a seagoing vessel, the type of fuel used is determined according to the ship type and engine power, and the corresponding default sulfur content is determined according to the type of fuel, which will be subsequently input into the inverse calculation algorithm as the calculation parameter in the formula of step 8. When it is an inland river ship, the default sulfur content is directly set. In this embodiment, if it is an inland river ship, the ship is set to use light diesel with a default sulfur content of 0.001% m / m; if it is a seagoing ship, the ship is set to use a fuel with a default sulfur content (i.e., sulfur content limit) of 0.5% m / m. For the main engine, the correspondence between the seagoing ship type and engine power and the fuel type and sulfur content is shown in Table 2.
[0056] Table 2 Correspondence between ship type and engine power and fuel type and sulfur content
[0057]
[0058]
[0059] Step 4: The user defines the longitude and latitude of the target area. The algorithm will filter the ship emission data obtained in step 1 according to the longitude and latitude range entered by the user, and only process the ship emission data within the longitude and latitude range in the subsequent steps, and determine the sulfur content limit corresponding to the target area. The sulfur content limit will be used to determine whether the sulfur content calculated in reverse in step 8 exceeds the standard. The setting standards for the sulfur content limit are as follows: For inland ships sailing in the inland emission control area, the algorithm sets the sulfur content limit to 0.001% m / m; for seagoing ships sailing in areas outside the inland emission control area, the algorithm sets the sulfur content limit to 0.5% m / m.
[0060] Step 5: The user inputs the longitude and latitude information of the regulatory section (such as the longitude and latitude of point A and point B, and the obtained line segment AB is the user-defined regulatory section). The algorithm draws the ship trajectory according to the longitude and latitude in the ship emission data screened in step 4, and determines whether the ship has passed the regulatory section based on whether the ship trajectory intersects with the regulatory section, thereby screening out the ship emission information passing through the regulatory section. If the time interval between the two trajectory points before and after the section is greater than 1 minute, the trajectory needs to be interpolated to determine the trajectory point that is closer to the regulatory section, and output the SO2 emissions and NO2 emissions when the ship is at this point, where NO2 emissions are calculated at a ratio of 0.15:1 to NO x The SO2 and NO2 emissions obtained when the ship passes through the regulatory section will be input as calculation parameters into the formula in step 8 for calculation.
[0061] Step 6: According to the longitude and latitude of the supervision section input by the user, access the field observation data of the corresponding monitoring point (including SO2 concentration and NO2 concentration, in ppb). For example, if the supervision section is located at Wusongkou, Shanghai, access the field observation data of Wusongkou. Then use the filtfilt() function of the Scipy library in the python language to denoise the field observation data, remove the high-frequency oscillation noise signal, and obtain the observation data with easier peak recognition.
[0062] Step 7: Use the peak finding function find_peaks() to process the observed data and identify the time of peak occurrence and peak prominence according to the established peak parameters (peak height, duration, horizontal and vertical distances between adjacent peaks, peak protrusion, etc.).
[0063] Step 8: Associate the peak time with the time period when the ship passes through the section. If the peak time is within the time period when the ship passes through the section, it is determined that there is an effective correlation between the emission data and the observation data at the peak time, and the ship emission information before and after the peak time is obtained. The emission data and observation data are combined according to the following formula to calculate the corrected sulfur content of marine fuel, and determine whether the sulfur content exceeds the standard. The sulfur content calculation formula is as follows.
[0064]
[0065] In the formula, is the SO2 corrected emission (g); ΔOBS i is the observed value variation of different species (ppb); is the change in SO2 concentration; is the change in NO2 concentration; NO2 emissions calculated for the ship emission model (g); FSC corrTo back calculate the sulfur content; SO2 emissions calculated for the ship emission model (g); FSC default is the default sulfur content, which is also the sulfur content limit.
[0066] Step 9: Return the fuel sulfur content corrected based on the observed data to the ship emission model to achieve dynamic correction of SO2 emissions of different types of ships. The time resolution of the correction is 1 hour.
[0067] Compared with the previous static assignment algorithm, this embodiment deeply combines the ship emission model and field observation data, comprehensively considers the ship type and the sulfur content limit of the regulatory area, realizes the dynamic assignment of sulfur content, and improves the accuracy of the sulfur content back-calculation results and the accuracy of the model output. In addition, this embodiment can dynamically change the assignment parameters for different application scenarios, improve the applicability of the algorithm, and can meet the maritime regulatory needs in multiple scenarios.
[0068] Example 2
[0069] This embodiment provides a computer device, which may be a server or a terminal. Its internal structure diagram may be as follows: Figure 4 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data processed by the dynamic sulfur content assignment method for ship emissions. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the dynamic sulfur content assignment method for ship emissions described in Example 1 is implemented.
[0070] Those skilled in the art will understand that Figure 4The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components. In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.
[0071] Example 3
[0072] This embodiment provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for assigning dynamic sulfur content in ship emissions described in the above-mentioned embodiment 1.
[0073] Example 4
[0074] This embodiment provides a computer program product, including a computer program, which, when executed by a processor, implements the method for assigning dynamic sulfur content in ship emissions described in the above-mentioned embodiment 1.
[0075] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.
[0076] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).
[0077] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.
[0078] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0079] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.
Claims
1. A ship emission calculation method with dynamic sulfur content assignment, characterized in that: The ship emission calculation method of dynamic sulfur content assignment includes: Obtain the regulatory section ship emission data and regulatory section field observation data under the target area, wherein the regulatory section ship emission data is the assumed data obtained according to the ship emission model, the regulatory section ship emission data includes IMO number, engine power, ship type, sulfur oxide emissions and nitrogen oxide emissions, and the regulatory section field observation data is the monitoring data of the monitoring point, and the regulatory section field observation data includes sulfur oxide concentration and nitrogen oxide concentration; The sulfur content is calculated by back-calculating the sulfur content according to the field observation data of the regulatory section, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit, wherein the sulfur content limit is a variable value determined according to the IMO number and / or the determination data, and the determination data includes the ship type and the engine power; Correcting the ship emission model according to the back-calculated sulfur content to obtain a corrected ship emission model; A ship emission inventory is obtained according to the modified ship emission model.
2. The ship emission calculation method with dynamic sulfur content assignment according to claim 1 is characterized in that: The sulfur content is calculated based on the off-site observation data of the regulatory section, the sulfur oxide emissions, the nitrogen oxide emissions and the sulfur content limit, specifically including: Determine the peak information in the field observation data of the regulatory section according to the preset peak parameters, wherein the peak information includes the peak occurrence time and the peak prominence degree; The sulfur content is calculated by back-calculating the peak prominence, the target sulfur oxide emissions, the target nitrogen oxide emissions and the sulfur content limit, wherein the target sulfur oxide emissions and the target nitrogen oxide emissions are the sulfur oxide emissions with a preset time interval from the target peak, the target nitrogen oxide emissions are the nitrogen oxide emissions with a preset time interval from the target peak, and the target peak occurrence time is the peak occurrence time within the time period when the ship passes through the regulatory section.
3. The ship emission calculation method with dynamic sulfur content assignment according to claim 1 is characterized in that: Obtain the regulated cross-section ship emission data in the target area, including: Obtain ship emission data in target areas; Plotting ship trajectories based on ship positions from ship emissions data in target areas; According to the ship track and the supervision section, determining whether the ship has passed through the supervision section, and obtaining a first determination result; The target area ship emission data for which the first judgment result is yes is selected as the regulatory section ship emission data.
4. The ship emission calculation method with dynamic sulfur content assignment according to claim 3 is characterized in that: Selecting the target area ship emission data for which the first judgment result is yes as the supervision section ship emission data specifically includes: When the first judgment result is yes, and the time interval between the first target trajectory points is greater than the time interval threshold, interpolation processing is performed on the ship trajectory formed between the first target trajectory points to obtain an interpolated ship trajectory, wherein the first target trajectory points are two ship trajectory points on the ship trajectory adjacent to the intersection point, and the intersection point is the intersection point of the ship trajectory and the supervision section; The target area ship emission data corresponding to the second target trajectory point is selected as the regulatory section ship emission data, wherein the second target trajectory point is a ship trajectory point whose distance from the intersection point is less than a distance threshold.
5. The ship emission calculation method with dynamic sulfur content assignment according to claim 1 is characterized in that: The process of determining the sulfur content limit includes: Determine whether the ship is an inland river ship according to the IMO number, and obtain a second determination result; When the second judgment result is yes, determining the fuel type according to the inland river vessel; When the second judgment result is no, determining the fuel type in combination with the ship type and the engine power; The sulfur content limits corresponding to different ships are determined according to the fuel type.
6. The ship emission calculation method with dynamic sulfur content assignment according to claim 1 is characterized in that: The calculation formula for the reverse calculation of sulfur content is: In the formula, Correct emissions for SO2; is the change in SO2 concentration; is the change in NO2 concentration; is NO2 emission; FSC corr To back calculate the sulfur content; is SO2 emissions; FSC default The sulfur content limit.
7. The ship emission calculation method with dynamic sulfur content assignment according to claim 2 is characterized in that: Determining peak information in the field observation data of the regulatory section according to preset peak parameters specifically includes: De-noising the field observation data of the regulatory section to obtain de-noised field observation data of the regulatory section; The peak information in the denoised supervision cross-section field observation data is determined according to preset peak parameters.
8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the ship emission estimation method with dynamic sulfur content assignment according to any one of claims 1 to 7.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the ship emission calculation method with dynamic sulfur content assignment according to any one of claims 1 to 7 is implemented.
10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the ship emission calculation method with dynamic sulfur content assignment according to any one of claims 1 to 7 is implemented.