Any person approved under 310 CMR 7.19(2)(b) must comply with the requirements of 310 CMR 7.19(13), except as specfied in 310 CMR 7.19(9)(b).
ASNOx is the annual standard for nitrogen oxides derived from all fuels fired during the base year.
HIx is the heat input for fuel 1 in Btu during the base year.
ESI is the emissions standard for fuel 1 contained in 310 CMR 7.19(4) through (11), except that for tangential oil or oil and gas fired boilers, the emissions standard is 0.2 pounds per million Btu.
N is the number of fuels burned during the base year.
General Applicability. After March 9, 2018, any person owning, leasing, operating or controlling a facility subject to 310 CMR 7.19(4)(b), (7)(b), or (8)(d) that requires installation of air pollution controls or retrofitting of air pollution controls, or proposes to use ERCs, to meet applicable emission standards shall submit an Emission Control Plan to the Department within 180 days of March 9, 2018.
After the close of the public comment period, the Department shall issue a final approval or disapproval of the ECP.
FUEL | Measurement | Value |
Gaseous | CO emissions | 400 ppm |
#1 & #2 oils | smoke-spot number | number 1 |
#4 oil | smoke-spot number | number 2 |
#5 oil | smoke-spot number | number 3 |
#6 oil | smoke-spot number | number 4 |
The above conditions are referred to as CO or smoke threshold, or as the minimum excess oxygen level. Compare this minimum value of excess oxygen to the expected value provided by the combustion unit manufacturer. If the minimum level found is substantially higher than the value provided by the combustion unit manufacturer, the owner or operator should improve fuel and air mixing, thereby allowing operation with less air.
Figure 310 CMR 7.19(6) - 1
Figure 310 CMR 7.19(6) - 2
For boilers with an energy input capacity equal to or greater than 50,000,000 Btu per hour and less than 100,000,000 Btu per hour, compliance with the NOx and CO emission standards shall be demonstrated by performing an initial stack test as specified in 310 CMR 7.19(13)(c). The recordkeeping in 310 CMR 7.19(13)(d) shall apply.
ESp/mmBtu = 0.866 x ESgm/bhp-hr x Eff
Where:
ESp/mmbtu - Emission standard expressed in pounds per million Btu.
ESgm/bhp-hr - Emission standard expressed in grams per brake horse-power hour.
Eff = Thermal efficiency; the ratio of the electrical/mechanical output energy to the energy input.
The thermal efficiency must be demonstrated to the Department's satisfaction. There shall be either a direct or indirect readout of the electrical/mechanical energy output. If a stationary combustion turbine and a stationary reciprocating internal combustion engine are to be averaged, the conversion factors contained in 310 CMR 7.19(14)(b) and (c) shall both be used.
For natural gas or propane:
pounds per million Btu = (ppmvd@15%O2) x (0.00369)
For oil:
pounds per million Btu = (ppmvd@15%O2) x (0.00389)
If a stationary combustion turbine and a stationary reciprocating internal combustion engine are to be averaged, the conversion factors contained in 310 CMR 7.19(14)(b) and (c) shall both be used.
PSNOx is the prorated standard for nitrogen oxides when burning different fuels simultaneously, in pounds per million Btu heat input derived from all fuels fired.
HI1 is the heat input for fuel
ES1 is the emissions standard for fuel
N is the total number of fuels burned either simultaneously or on that day.
310 CMR, § 7.19