Ohio Admin. Code 3745-103-66 - Test methods and procedures

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (C) of rule 3745-103-01 of the Administrative Code titled "Referenced materials."]

(A) The owner or operator may use the following tests as a basis for the report required by paragraph (E)(7) of rule 3745-103-62 of the Administrative Code:

(1) An ultimate analysis of coal using ASTM D3176-89, "Standard Practice for Ultimate Analysis of Coal and Coke; ."

(2) A proximate analysis of coal using ASTM D3172-89, "Standard Practice for Proximate Analysis of Coal and Coke; ." and

(3) Measure the coal mass flow rate to each individual burner using ASME performance test code 4.2, "Test Code for Coal Pulverizers"or ISO 9931, "Coal - Sampling of Pulverized Coal Conveyed by Gases in Direct Fired Coal Systems."

(B) The owner or operator may measure and record the actual NO_x emission rate in accordance with the requirements of this part while varying the following parameters where possible to determine their effects on the emissions of NO_x from the affected boiler:

(1) Excess air levels; .

(2) Settings of burners or coal and air nozzles, including tilt and yaw, or swirl; .

(3) For tangentially fired boilers, distribution of combustion air within the NO_x emission control system; .

(4) Coal mass flow rates to each individual burner; .

(5) Coal-to-primary air ratio (based on pound per hour) for each burner, the average coal-to-primary air ratio for all burners, and the deviations of individual burners' coal-to-primary air ratios from the average value; and .

(6) If the boiler uses varying types of coal, the type of coal. Provide the results of proximate and ultimate analyses of each type of as-fired coal.

(C) In performing the tests specified in paragraph (A) of this rule, the owner or operator shall begin the tests using the equipment settings for which the NO_x emission control system was designed to meet the NO_x emission rate guaranteed by the primary

NO_x emission control system vendor. These results constitute the baseline controlled condition.

(D) After establishing the baseline controlled condition under paragraph (C) of this rule, the owner or operator may:

(1) Change excess air levels plus or minus five per cent from the baseline controlled condition to determine the effects on emissions of NO_x, by providing a minimum of three readings (e.g., with a baseline reading of twenty per cent excess air, excess air levels may be changed to nineteen per cent and twenty-one per cent); .

(2) For tangentially fired boilers, change the distribution of combustion air within the NO_x emission control system to determine the effects on NO_x emissions by providing a minimum of three readings, one with the minimum, one with the baseline, and one with the maximum amounts of staged combustion air; and .

(3) Show that the combustion process within the boiler is optimized (e.g., that the burners are balanced).

Notes

Ohio Admin. Code 3745-103-66

Five Year Review (FYR) Dates: 5/26/2023 and 05/26/2028
Promulgated Under: 119.03
Statutory Authority: 3704.03(E)
Rule Amplifies: 3704.03(A), 3704.03(E)
Prior Effective Dates: 06/27/2002, 01/12/2007, 11/10/2011, 10/20/2017

Effective: 10/20/2017
Five Year Review (FYR) Dates: 7/31/2017 and 07/31/2022
Promulgated Under: 119.03
Statutory Authority: 3704.03(E)
Rule Amplifies: 3704.03(A), 3704.03(E)
Prior Effective Dates: 6/27/02, 1/12/07, 11/10/11