Michigan Administrative Code › Department - Environmental Quality › Air Quality Division › Part 8 - EMISSION LIMITATIONS AND PROHIBITIONS- OXIDES OF NITROGEN › Section R. 336.1818 - Emission limitations for stationary internal combustion engines

Current through Vol. 24-12, July 15, 2024
Rule 818.
(1) As
				used in this rule:
(a) "Affected engine" means
				a stationary internal combustion engine that is a large NOx SIP call engine, or
				any other stationary internal combustion engine that is subject to NOx control
				under a compliance plan established under subrule (3) of this rule.
(b) "Diesel engine" means a compression
				ignited 2- or 4-stroke engine in which liquid fuel injected into the combustion
				chamber ignites when the air has been compressed to a temperature sufficiently
				high for auto-ignition.
(c) "Dual
				fuel engine" means any stationary reciprocating internal combustion engine in
				which a liquid fuel, typically diesel fuel, is used for compression ignition
				and gaseous fuel, typically natural gas, is used as the primary fuel.
(d) "Engine seasonal NOx 2007 tonnage
				reduction" means the year 2007 ozone control period NOx emissions reductions
				value (tons) for a large NOx SIP call engine, which is based on an NOx control
				efficiency of 82% for large gas-fired engines and 90% for diesel and dual-fuel
				engines.
(e) "Facility seasonal NOx
				2007 tonnage reduction" means the total of the engine ozone control period NOx
				2007 tonnage reductions attributable to all of an owner or operator's large NOx
				SIP call engines.
(f) "Large NOx
				SIP call engine" means a stationary internal combustion engine emitting more
				than 1 ton of NOx per average ozone control period day in 1995.
(g) "Lean-burn engine" means any 2- or
				4-stroke spark-ignited engine that is not a richburn engine.
(h) "Ozone control period" means the period
				of May 1 to September 30.
(i) "Past
				NOx emission rate" means the emission rate of an affected engine in grams per
				brake horsepower-hour as determined by performance testing consistent with the
				requirements of 40 CFR part 60, appendix A, as adopted by reference in
				R
				336.1902. Where the performance test data are not
				available, the past NOx emission rate may be determined by the department on a
				case-by-case basis using, for example, appropriate emission factors. For large
				NOx SIP call engines, the past NOx emission rate is the uncontrolled emission
				rate.
(j) "Projected operating
				hours" means the projected actual number of hours of operation per ozone
				control period for an affected engine.
(k) "Projected NOx emission rate" means the
				projected emission rate in grams per brake horsepower-hour after installation
				of controls on an affected engine.
(l) "Rich-burn engine" means a spark-ignited
				stationary internal combustion engine in which the concentration of oxygen in
				the exhaust stream before any dilution is 1% or less measured on a dry
				basis.
(m) "Stationary internal
				combustion engine" means an internal combustion engine of the reciprocating
				type that is either attached to a foundation at a facility or is designed to be
				capable of being carried or moved from 1 location to another and remains at a
				single site at a building, structure, facility, or installation for more than
				12 consecutive months. An engine, or engines, that replaces an engine at a site
				that is intended to perform the same or similar function as the engine replaced
				is included in calculating the consecutive time period.