KR20000072182A - AirMaster -Air dispersion software for administrating air pollution emission facility - Google Patents

Abstract

PURPOSE: An ambient diffusion software 'air master' is provided to conduct an ambient diffusion model by even a site manager and to write out a report right after the analysis of a result with one software. CONSTITUTION: A user inputs a company's present position, a chimney data, a pollutants measuring data and an abutting buildings data, then a software calculates how the pollutant affects around environment by automatically proffering weather and geographical data. A concentration data as a result is outputted as a report and a concentration distribution chart is schematized on a map. Further, the user inputs a chimney TM coordinate, then weather information and the geographical data in any region surrounding the chimney up to 10.0km x 10.0 km are given to an air master modeling calculation.

Description

Airmaster-Air Dispersion Software for Air Pollution Facility Management {AirMaster -Air dispersion software for administrating air pollution emission facility}

The present invention relates to air pollutant diffusion modeling for predicting the diffusion process of air pollutants discharged from the chimney, in particular a short-term model; Organ model; It relates to a technology that operates on one window software by adding the function of the screen model to the plot function and the report output function. The short-term model; Organ model; The screen model will be described in the modeling part of the configuration of the invention.

In the future, the Ministry of Environment's air environment management policy will focus on strengthening the management of workplaces that are the source of pollutants, including strengthening air pollution investigations and strengthening air pollutants at work sites. Among the modeling software, there is no domestic software. The ISCST model, which is composed of FORTRAN language on the Internet site of the U.S. Environmental Protection Agency (EPA), an open site for atmospheric diffusion models, ISCLT model and SCREEN model are downloaded and used.

By the way, since the weather input data format is adapted to the foreign weather data system, the software requires a lot of effort and time to process the Korean weather data and input it to the software.

In addition, the existing air diffusion modeling software has complicated data input methods such as source data, influences of surrounding buildings, and terrain data. Output of model results; In interpreting the output result, the user should select the case suitable for the situation with expert knowledge, and input the data manually. There is no report output.

In summary, the existing air pollutant diffusion modeling software for the workplace is not domestic, adopts a data input method that is not suitable for the situation in Korea, and the configuration is complicated, and there is a limit to use it for the field manager who is not an expert in the field of modeling. In addition, data input, modeling, result analysis, report preparation, etc. are not done in one software, but different software is used, so it is inconvenient to use in field workplaces.

The present invention was created to solve the above problems, and basically performs the function of the atmospheric diffusion model recommended by the US Environmental Protection Agency (EPA), such as the existing ISCST, ISCLT, and SCREEN models, The input process of the right weather data, topographic data, source, and surrounding building data is composed of GUI (Graphic User Interface) instead of DOS and can be confirmed by the user directly on the window screen. By plotting the resulting data into contribution isometry curves, the results can be immediately analyzed and generated, and data can be entered without the user having to use the respective software; Select model; Modeling performance; Analysis of results; Its purpose is to execute the process of outputting a report in a single Windows software. In particular, if a user inputs chimney TM coordinates anywhere in Korea, the Korea Meteorological Agency's meteorological data and terrain altitude data for 10.0 km x 10.0 km area around the chimney are constructed as a database in Airmaster software. Automatically reflected in modeling calculations.

1 is a block diagram of an air master.

2 is a chimney input window of an airmaster.

3 is a modeling area selection window of the air master. Select the area of the surrounding area here.

4 is a peripheral building input window of the air master. This allows you to enter the pollutants that are impacted by the building.

5 is a window for selecting pollutants and model type of the air master.

6 is a window representing the isoconcentration curve of the air master, and FIG. 7 is a plane.

8 is a window showing the highest contribution concentration analysis of the airmaster report output in the TMX, TMY coordinates.

In order to achieve the above object, Airmaster, an air diffusion model software that predicts and analyzes the effects of air pollutants emitted from a chimney on the surrounding environment, allows a user to input data necessary for modeling on a window screen. User input data processing portion; A database portion consisting of an area and terrain data implementation part of an atmospheric diffusion modeling target area and a weather file part for each type of model; A modeling part that introduces data from the input data processing part and the database part to perform modeling calculations; Digitizing the pollutant concentration value for each coordinate of the receiving point calculated in the modeling part; Plotting contribution equalization curve plotting portion; It characterized in that it comprises a report output portion for outputting the input data and the contribution concentration curve diagram in the form of a report to the screen and a printer.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

According to Figure 1, the user input data processing portion discharge source chimney data processing; User fuel data processing; Includes parts such as the processing of building data around chimneys.

Concentration of emission pollutants in the chimney of the workplace in the chimney data input window of Airmaster; Flue gas temperature; Flue gas velocity; When the inside diameter of the chimney is input, the pollutant emissions from the chimney are calculated and automatically introduced into the modeling part of FIG. 1, and when the chimney TM coordinate of the workplace is input, 2.5 km x 2.5 km based on the chimney TM coordinates entered; 5.0 km x 5.0 km; Three sizes of electronic maps, such as 10.0 km x 10.0 km, are introduced in the concentration curve diagram of Airmaster's contribution. (See Fig. 3)

According to the used fuel processing part of FIG. 1, when a user inputs a fuel type and inputs a fuel usage amount, the emission amount of the pollutant according to the fuel consumption is increased by using the pollutant emission factor of the fuel contained in the airmaster. It is calculated and automatically introduced into the modeling calculation part of the airmaster.

According to the processing portion of the building data surrounding the chimney of Figure 1, after inputting the height of the building around the chimney in the surrounding building setting window of the air master, by entering the coordinates, by the building trickle phenomenon pre-processing program embedded in the air master, In the air diffusion of the chimney emission pollutants, the downwash effect of buildings is calculated in 36 directions for short-term models and 16 directions for long-term models. )

The downwash refers to a phenomenon in which a building is located around the chimney and affects the diffusion of the chimney discharge material.

In the existing atmospheric diffusion model, the input data processing required for the modeling calculation is mostly done on MS-DOS, the source chimney data of Figure 1; Fuel data used; Although the input processing of the chimney surrounding building data is performed on each program instead of one program, the user was inconvenient. However, in the present invention, the input processing is performed on one GUI (Graphic User Interface) window software screen rather than a DOS image. As a result, the user can easily perform the task while checking the input status.

According to the Database part of FIG. 1, when the user selects the region and the terrain data for modeling in the window window, the airmaster is centered on the TM coordinates of the chimneys introduced from the emission data (chimney) data part of FIG. 1. , 2.5 km x 2.5 km; 5.0 km x 5.0 km; The terrain and elevation data for three areas, 10.0 km x 10.0 km, are introduced into the modeling calculations.

Air master has built-in topographical data and weather files centered on the TM coordinates of the workplace chimney, the present invention is a method that can perform atmospheric diffusion modeling according to our situation for the chimney anywhere in Korea. This is a method not found in traditional atmospheric diffusion modeling.

According to the modeling portion in Figure 1, the user is a short-term model; Organ model; When the screen model is selected, the model is calculated using the data introduced in the modeling calculation (see Fig. 5).

The short-term model of the model is to receive the weather data in units of 1 hour to perform modeling calculations, 1 hour; 8 hours; 24 hours; 1 month; season; It is a method which shows the density value, such as 1 year.

The long-term model among the above models includes six kinds of wind speeds; Wind direction in 16 directions; 1 month by introducing weather file in the form of frequency function table consisting of 6 levels of atmospheric stability; season; It is a method which shows the contribution concentration value, such as 1 year.

Among the models, the screen model is a method of calculating the maximum contribution concentration in units of 1 hour that the source emits to the surroundings in consideration of the worst weather conditions in the 1 degree interval and 360 degrees in the air diffusion modeling calculation.

In the existing screen model, only one direction value was calculated during the one-time modeling calculation process, but the screen model of the Airmaster derives the 360-direction calculation results at one-degree intervals through one-time modeling calculation process. It is characterized by. In addition, the existing atmospheric diffusion modeling is a long-term model; Short-term model; Although it was inconvenient to calculate the screen model by setting the respective programs on DOS, in the present invention, the long-term model was simply selected on the window screen; Short-term model; Modeling calculations can be performed by selecting a screen model. (See Fig. 5)

According to the DataBase part of FIG. 1, when the modeling to be calculated in the modeling part is determined, the user may select a weather file suitable for the model in a window window, and the airmaster automatically introduces the selected weather file into the modeling calculation. .

In the existing model, there is no general-purpose weather data that suits the characteristics of Korea, but only some experts have prepared and used the weather data that fits the model. It is provided for computational purposes.

According to the contribution isoconcentration curve diagram of FIG. 1, the present invention performs a contribution concentration analysis in which the contaminant contribution concentration value, which is a result of the modeling calculation, is displayed on a window window for each accommodation point coordinate. In addition, by using the principle of making the coordinates of the receiving point for the contribution concentration of the pollutant resulting from the modeling in an array form, and displaying the value of the same color for the coordinates having the same concentration value, The contribution isoconcentration curve is plotted on an electronic map centered on TM coordinates, and saved as a picture file with a bmp extension according to the user's choice.

In the existing model, there is no function of plotting the contribution isoconcentration curve using the pollutant concentration value that is the result of model execution, and if the user wants to implement the contribution isoconcentration curve, it is inconvenient to use other programs. there was. However, in the present invention, the contribution concentration shown in the model execution can be used to plot the contribution isoconcentration curve on the electronic map on one window software without program replacement.

6 and 7, a window screen showing the contribution isoconcentration curve using the concentration values shown in the modeling results can be seen.

According to the report portion of Figure 1, the company status according to the user's selection; Chimney material; Prevention facility status; Surrounding buildings; Fuel consumption; Modeling area; Terrain data; Output the maximum contribution concentration to the printer.

One page of the maximum contribution concentration report appearing by rank of high pollution value in the output report is shown in FIG. 8.

As described above, the present invention automatically supports the weather and terrain input data in the software so that when the user inputs company status, chimney data, pollutant measurement data, and surrounding building data, the pollutants emitted from the chimney are surrounded. In addition to easily calculating the impact on the model, the concentration data, which is the result of the calculation, can be printed on the report, and the concentration distribution curve, which contributes to the map of the modeling region, is used to visually express the spread of pollutants in the atmosphere. to provide. In addition, when the user inputs the chimney TM coordinates, the Korea Meteorological Agency data and terrain elevation data for 10.0 km x 10.0 km of the chimney center are reflected in the airmaster modeling calculation anywhere in Korea. Therefore, the present invention can be usefully used for the prediction of major pollutant sources in the industrial area, national air management policy, and air environment management.

Claims (6)

In Airmaster, a software that performs atmospheric diffusion modeling of short-term models, long-term models, and screen models, Process of source (chimney) data, processing fuel data, processing of building data around chimneys, calculation of atmospheric diffusion modeling, etc. User Interface) Method in Windows Software (Fig. 8 shows an example of maximum contribution concentration report) The method according to claim 1, wherein the processing of the source (chimney) data consists of the following items. (A) Contaminant concentration in the chimney of the workplace in the chimney data input window of the air master; Flue gas temperature; Flue gas velocity; Input chimney top diameter to calculate pollutant emissions and automatically introduce into modeling calculations (B) If you enter the chimney TM coordinates of the workplace in the air chimney data input window, 2.5 km x 2.5 km around the chimney TM coordinates entered; 5.0 km x 5.0 km; A method of introducing three sizes of electronic maps, such as 10.0 km x 10.0 km, into the isoconcentration curve diagram of the airmaster (Fig. 3 selects three areas and outputs concentration values for each point) The method according to claim 1, wherein the processing of the building data around the chimney is performed by inputting the height of the building around the chimney after inputting the height of the building around the chimney by the building trickle pretreatment program embedded in the air master. A method of automatically evaluating the downwash effect of the building in the air diffusion of the chimney exhaust pollutants in 36 directions for the short-term model and 16 directions for the long-term model is automatically introduced into the modeling calculation part of the air master (FIG. Input window considering building influence around chimney) The method of claim 1, wherein the isoconcentration curve plotting of the modeling calculation results is made by arranging the coordinates of the acceptor points for the concentrations of the pollutants resulting from the model calculation, and then, for the coordinates having the same concentration value, the same color values are used. How to plot the isoconcentration curve in lines and planes on the electronic map centered on the workplace introduced in paragraph 2 (b) using the principle of display (Figures 6 and 7 show the isoconcentration curve in line and plane) In calculating the model, a long-term model on one window software; Short-term model; Method of selecting and calculating one model desired by the user among the screen models (FIG. 5 is a window for selecting a pollutant type and model type) The method of claim 5, wherein the screen model calculates a maximum one-hour contribution concentration of the emission source to the surroundings in consideration of worst-case weather conditions in one degree intervals and 360 degrees in the air diffusion modeling calculation.