40 CFR 63.1178 - For cupolas, what standards must I meet?

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§ 63.1178 For cupolas, what standards must I meet?

(a) You must control emissions from each cupola as specified in Table 2 to this subpart.

(b) You must meet the following operating limits for each cupola:

(1) Begin within one hour after the alarm on a bag leak detection system sounds, and complete in a timely manner, corrective actions as specified in your operations, maintenance, and monitoring plan required by § 63.1187 of this subpart.

(2) When the alarm on a bag leak detection system sounds for more than five percent of the total operating time in a six-month reporting period, develop and implement a written quality improvement plan (QIP) consistent with the compliance assurance monitoring requirements of § 64.8(b)-(d) of 40 CFR part 64.

(3) Additionally, on or after the applicable compliance date for each new or reconstructed cupola, you must either:

(i) Maintain the operating temperature of the incinerator so that the average operating temperature for each three-hour block period never falls below the average temperature established during the performance test, or

(ii) Maintain the percent excess oxygen in the cupola at or above the level established during the performance test. You must determine the percent excess oxygen using the following equation:

Percent excess oxygen = Percentage of excess oxygen present above the stoichiometric balance of 1.00, (%).
1.00 = Ratio of oxygen in a cupola combustion chamber divided by the stoichiometric quantity of oxygen required to obtain complete combustion of fuel.
Oxygen available = Quantity of oxygen introduced into the cupola combustion zone.
Fuel demand for oxygen = Required quantity of oxygen for stoichiometric combustion of the quantity of fuel present.
[ 64 FR 29503, June 1, 1999, as amended at 80 FR 45329, July 29, 2015]

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