Ohio Admin. Code 3745-103-66 - Test methods and procedures
[Comment: For dates
(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 NOx 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
NOx 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 NOx 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 NOx emission
control system was designed to meet the NOx emission
rate guaranteed by the primary
NOx 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 NOx, 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 NOx emission control system to determine the effects
on NOx 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
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
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
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