Calculating GHG emissions.

You must determine CO 2 process emissions from carbonate use in accordance with the procedures specified in either paragraphs (a) or (b) of this section. (a) Calculate the process emissions of CO 2 using calcination fractions with Equation U-1 of this section. Where: E CO2 = Annual CO 2 mass emissions from consumption of carbonates (metric tons). M i = Annual mass of carbonate type i consumed (tons). EF i = Emission factor for the carbonate type i, as specified in Table U-1 to this subpart, metric tons CO 2 /metric ton carbonate consumed. F i = Fraction calcination achieved for each particular carbonate type i (decimal fraction). As an alternative to measuring the calcination fraction, a value of 1.0 can be used. n = Number of carbonate types. 2000/2205 = Conversion factor to convert tons to metric tons. (b) Calculate the process emissions of CO 2 using actual mass of output carbonates with Equation U-2 of this section. Where: E CO2 = Annual CO 2 mass emissions from consumption of carbonates (metric tons). M k = Annual mass of input carbonate type k (tons). EF k = Emission factor for the carbonate type k, as specified in Table U-1 of this subpart (metric tons CO 2 /metric ton carbonate input). M j = Annual mass of output carbonate type j (tons). EF j = Emission factor for the output carbonate type j, as specified in Table U-1 of this subpart (metric tons CO 2 /metric ton carbonate input). m = Number of input carbonate types. n = Number of output carbonate types.