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To select a unit for which to enter emissions data, find the unit in the ELECTRIC ARC FURNACES table and click OPEN.

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Step 2: Equation K-1 and K-3 Summary and Result

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• The annual CO₂ process emissions (the output of Equation K-1, in metric tons)
• For each EAF used for the production of a ferroalloy listed in Table K-1, the annual CH₄ process emissions (the output of Equation K-3, in metric tons). Note, reporting of CH₄ process emissions is only required for ferroalloy types listed in Table K-1. If you do not produce a ferroalloy type listed in this table, enter “0” for your emissions.

For assistance in calculating CO₂ and CH₄ process emissions for an EAF, access the calculation spreadsheets for this subpart by clicking one of the links titled "Use K-1, K-3 spreadsheet to calculate," located below the red emissions data entry boxes, then follow the provided instructions.

Step 3: Input and Output values

For RY2014 and later each of the values are developed by entering your equation inputs data into the Inputs Verifier Tool (IVT) and letting the IVT calculate your emissions.  If you disagree with the emission value calculated by IVT you will have an opportunity to override and enter your own value after IVT has done its calculations. 

Click on the green "GO" button labeled "Use Inputs Verifier to calculate" to open the IVT page where equation inputs are entered.  For help related IVT for Subpart K click Subpart K Entering Equation Inputs Using IVT.

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Step 3: Enter Measurement Method and Missing Data Procedure Information

In addition to the emission of CO2 and CH4 you must also provide the following measurement method and missing data procedure information for each input and output assigned to an electric arc furnaceFor each Input and Output assigned to an electric arc furnace, Subpart K collects the following data:

• The method used to determine carbon content (Provided by supplier, ASTM E1941-04, ASTM D5373-08, or ASTM C25-06)
• An indication if a missing data procedure was used or analysis was repeated to determine carbon content
• The procedure used to develop substitute data for monthly mass, if applicable (Purchase records or Other)
• The number of months that missing data procedures were followed to determine monthly mass

Your completed Subpart Input and Outputs page should look the screen snap below after these steps.

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Step 4: Save Your Data

When you have finished entering inputs for Equations K-1 and K-3 results and Input/Output data, click SAVE. You will then be directed back to the Subpart Overview page. The status of data entry for this furnace in the ELECTRIC ARC FURNACES table should now be “Complete” in the Status column.

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Repeat Steps 1-4 until emissions and input/output data has been entered for all EAFs NOT monitored by a CEMS. Once you have entered the emissions information, that status of data entry for all furnaces in the ELECTRIC ARC FURNACES table should now be “Complete” in the Status column. If you have missed something, the validation report messages will help you identify any incomplete entries.

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See Also

Screen Errors
Using e-GGRT to Prepare Your Subpart K Report
Subpart K Summary Information for this Facility
Subpart K Furnace Information for Furnaces NOT Monitored by CEMS
Subpart K Furnace Information for Furnaces Monitored by CEMS
Subpart K Emissions Information for Furnaces Monitored by CEMS
Subpart Validation Report