Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 5 - STATE AIR POLLUTION CONTROL BOARD › Chapter 40 - EXISTING STATIONARY SOURCES › Part II - Emission Standards › Article 4 - Emission Standards for General Process Operations (Rule 4-4) › Section 9VAC5-40-250 - Definitions

Current through Register Vol. 40, No. 24, July 15, 2024
A. For the purpose
					 of the Regulations for the Control and Abatement of Air Pollution and
					 subsequent amendments or any orders issued by the board, the words or terms
					 shall have the meanings given them in subsection C of this section.
B. As used in this article, all terms not
					 defined herein shall have the meanings given them in 9VAC5 Chapter 10
					 (9VAC5-10-10 et seq.), unless
					 otherwise required by context.
C.
					 Terms defined.
"Combustion installation" means all combustion units
						within a stationary source in operation prior to October 5, 1979.
"Combustion unit" means any type of stationary equipment
						in which solid, liquid or gaseous fuels and refuse are burned, including, but
						not limited to, furnaces, ovens, and kilns.
"Heat input" means the total gross calorific value of all
						fuels burned.
"Manufacturing operation" means any process operation or
						combination of physically connected dissimilar process operations which is
						operated to effect physical or chemical changes or both in an article.
"Materials handling equipment" means any equipment used
						as a part of a process operation or combination of process operations which
						does not effect a physical or chemical change in the material or in an article,
						such as, but not limited to, conveyors, elevators, feeders or weighers.
"Physically connected" means any combination of process
						operations connected by materials handling equipment and designed for
						simultaneous complementary operation.
"Process operation" means any method, form, action,
						operation or treatment of manufacturing or processing, including any storage or
						handling of materials or products before, during or after manufacturing or
						processing.
"Process unit" means any step in a manufacturing or
						process operation which results in the emission of pollutants to the
						atmosphere.
"Process weight" means total weight of all materials
						introduced into any process unit which may cause any emission of pollutants.
						Process weight includes solid fuels charged, but does not include liquid and
						gaseous fuels charged or combustion air for all fuels.
"Process weight rate" means a rate established as
						follows:
a. For continuous or long-run
					 steady-state process operations, the total process weight for the entire period
					 of continuous operation or for a typical portion of it, divided by the number
					 of hours of such period or portion of it.
b. For cyclical or batch process operations,
					 the total weight for a period that covers a complete operation or an integral
					 number of cycles, divided by the hours of actual process operation during such
					 a period.
"Rated capacity" means, the capacity as stipulated in the
						purchase contract for the condition of 100% load, or such other capacities as
						mutually agreed to by the board and owner using good engineering
						judgment.
"Total capacity" means with reference to a combustion
						installation, the sum of the rated capacities (expressed as heat input) of all
						units of the installation which must be operated simultaneously under
						conditions of 100% use load.