Indiana Administrative Code › Title 326 - AIR POLLUTION CONTROL DIVISION › Article 10 - NITROGEN OXIDES RULES › Rule 3 - Nitrogen Oxide Reduction Program for Specific Source Categories › Section 3-2 - Definitions

Current through July 10, 2024
Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11
Affected: IC 13-11-2; IC 13-15; IC 13-17
Sec. 2.
For purposes of this rule, the definition given for a term in
				  this rule shall control in any conflict between 326 IAC 1-2 and this rule. In
				  addition to the definitions provided in IC 13-11-2 and 326 IAC 1-2, the
				  following definitions apply throughout this rule unless expressly stated
				  otherwise or unless the context clearly implies otherwise:
(1) "Blast furnace gas fired" means deriving
				at least fifty percent (50%) of its total heat input from the combustion of
				blast furnace gas during the ozone control period.
(2) "Boiler" means an enclosed fossil or
				other fuel-fired combustion device used to produce heat and to transfer heat to
				recirculating water, steam, or other heat transfer medium.
(3) "Clinker" means the product of a Portland
				cement kiln from which finished cement is manufactured by milling and
				grinding.
(4) "Continuous emission
				monitoring system" or "CEMS" means the total equipment necessary for the
				determination of a gas or particulate matter concentration or emission rate
				using pollutant analyzer measurements and a conversion equation, graph, or
				computer program to produce results in units of the applicable emission
				limitation or standard.
(5) "Long
				dry kiln" means a Portland cement kiln fourteen (14) feet or larger in diameter
				and four hundred (400) feet or greater in length that employs no preheating of
				the feed. The inlet feed to the kiln is dry.
(6) "Long wet kiln" means a Portland cement
				kiln fourteen (14) feet or larger in diameter and four hundred (400) feet or
				greater in length that employs no preheating of the feed. The inlet feed to the
				kiln is a slurry.
(7)
				"Low-NOx burners" means a type of cement kiln burner
				system designed to lower NOx formation by controlling
				flame turbulence, delaying fuel/air mixing, and establishing fuel-rich zones
				for initial combusting, that for firing of solid fuel by a kiln's main burner
				includes an indirect firing system or comparable technique for the main burner
				to lower the amount of primary combustion air supplied with the pulverized
				fuel. In an indirect firing system, one (1) air stream is used to convey
				pulverized fuel from the grinding equipment and another air stream is used to
				supply primary combustion air to the kiln burner with the pulverized fuel, with
				intermediate storage of the fuel.
(8) "Malfunction" means any sudden,
				infrequent, and not reasonably preventable failure of air pollution control
				equipment, process equipment, or a process to operate in a normal or usual
				manner. Failures that are caused in part by poor maintenance or careless
				operation are not malfunctions.
(9)
				"Mid-kiln firing" means the secondary firing in a kiln system by injecting
				solid fuel at an intermediate point in the kiln system using a specially
				designed feed injection mechanism for the purpose of decreasing
				NOx emissions through:
(A) burning part of the fuel at a lower
				temperature; and
(B) reducing
				conditions at the fuel injection point that may destroy some of the
				NOx formed upstream in the kiln system.