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Multi-Sector Air Pollutants Regulations (SOR/2016-151)

Regulations are current to 2020-10-21 and last amended on 2020-09-21. Previous Versions

PART 1Boilers and Heaters (continued)

Quantification (continued)

Determination of NOx Emission Intensity (continued)

Marginal note:NOx emission intensity — average

 The NOx emission intensity of the boiler or heater determined by means of a stack test is the average of the three determinations — one for each test run — of its NOx emission intensity.

Marginal note:NOx emission intensity — deemed hours

 The average referred to in section 30 is deemed to be the NOx emission intensity of the boiler or heater

  • (a) for every hour of the day on which the third test run is conducted; and

  • (b) for every subsequent hour until its NOx emission intensity is determined based on another stack test or a CEMS test, if, for each of those subsequent hours,

    • (i) the same type of gaseous fossil fuel — natural gas or alternative gas — is introduced into its combustion chamber,

    • (ii) for a modern boiler, the thermal efficiency of the boiler is in the same range, namely,

      • (A) < 80%,

      • (B) ≥ 80% and ≤ 90%, or

      • (C) > 90%, or

    • (iii) for a modern heater, the difference between the temperature, expressed in °C, of its preheated air and the ambient air is

      • (A) in the case that no preheated air is introduced into the combustion chamber, 0, and

      • (B) in the case that the heater is equipped to preheat air, in the same range, namely,

        • (I) for a heater that combusts natural gas,

          1 > 0 and ≤ 150, or

          2 > 150, and

        • (II) for a heater that combusts alternative gas,

          1 > 0 and ≤ 155, or

          2 > 155.

Continuous Emission Monitoring System

Marginal note:Rolling hourly average

  •  (1) Subject to subsection (3), the NOx emission intensity of a boiler or heater determined by means of a CEMS for a given hour is the rolling hourly average for the given hour in an averaging period, established as follows:

    • (a) if the averaging period consists of at least 720 hours and

      • (i) the given hour is the 721st hour or a subsequent hour in the period, the rolling hourly average for that given hour is the average of the hourly NOx emission intensity for that hour and for each of the preceding 719 hours, or

      • (ii) the given hour is the 720th hour or a preceding hour in the period, the rolling hourly average for that given hour is the rolling hourly average for the 720th hour, namely, the average of the hourly NOx emission intensity for that 720th hour and for each of the preceding 719 hours; and

    • (b) if the averaging period consists of less than 720 hours, the rolling hourly average for that given hour is the average of the hourly NOx emission intensity for the averaging period.

  • Marginal note:Averaging period

    (2) The averaging period is each period that consists of consecutive hours when at least 50% of the input energy in the boiler’s or heater’s combustion chamber results from the introduction of gaseous fossil fuel.

  • Marginal note:Modern — new averaging period

    (3) For a modern boiler or heater, a new averaging period begins whenever the type of gaseous fossil fuel changes from natural gas to alternative gas, or vice versa.

  • Marginal note:Reference period — new averaging period

    (4) Despite subsections (2) and (3), an averaging period begins when a reference period begins — and an averaging period ends when a reference period ends — for an initial test, a determination or redetermination of a classification NOx emission intensity, a compliance test or a change report in respect of a change referred to in paragraph 43(1)(e) or (f).

  • Marginal note:Hourly NOx emission intensity

    (5) The hourly NOx emission intensity for a given hour is the average over the hour of the NOx emission intensities of the boiler or heater, determined in accordance with

    • (a) Section 3.4.1 of the EC CEMS Code; or

    • (b) Section 2.5.1 of the Alberta CEMS Code.

Testing

Marginal note:Initial test

  •  (1) During the reference period described in subsections (3) and (4), an initial test must be conducted to determine the NOx emission intensity of a boiler or heater referred to in any of sections 6, 7, 9 to 11, 13 and 14, whether or not it is subject to a limit referred to in that section for any hour of the reference period.

  • Marginal note:Stack test or CEMS test

    (2) The boiler’s or heater’s NOx emission intensity for the initial test must be determined

    • (a) if the boiler or heater meets the conditions set out in paragraphs 26(1)(a) and (b), by means of, one or more stack tests and a CEMS test — the stack tests being conducted in the reference period with at least one of those stack tests being conducted during each period described in subsection (5) and the CEMS test on the other boiler or heater referred to in paragraph 26(1)(b) being conducted for each hour in the reference period — with that determination being, for each period described in subsection (5) and each of the averaging periods in the reference period, the greater of

      • (i) the greatest NOx emission intensity that was determined by those stack tests, and

      • (ii) the greatest of the rolling hourly averages that were determined in respect of that averaging period; and

    • (b) in any other case, by means of

      • (i) one or more stack tests conducted in the reference period with at least one of those stack tests being conducted during each period described in subsection (5), or

      • (ii) a CEMS test, with that determination being the greatest of the rolling hourly averages determined in respect of each averaging period in the reference period.

  • Marginal note:Beginning of reference period

    (3) The reference period begins on

    • (a) for a modern boiler or heater that is commissioned at a regulated facility or for a transitional boiler or heater, the day — on or after its commissioning date — on which it begins to combust gaseous fossil fuel;

    • (b) for a redesigned boiler or heater referred to in section 10, the day — on or after its recommissioning date — on which it begins to combust gaseous fossil fuel;

    • (c) for a class 80 or class 70 boiler or heater referred to in section 11, the day on which it begins to combust gaseous fossil fuel on or after

      • (i) January 1, 2026, for a class 80 boiler or heater, and

      • (ii) January 1, 2036, for a class 70 boiler or heater;

    • (d) for a class 80 or class 70 boiler or heater referred to in subsection 13(1) or 14(1), the day — on or after its recommissioning date — on which it begins to combust gaseous fossil fuel;

    • (e) for a class 80 or class 70 boiler or heater referred to in subsection 14(2), the day that is 12 months after the day on which these Regulations are registered; and

    • (f) in any other case, the day — on or after the date on which this Part first applies in respect of the boiler or heater — on which it begins to combust gaseous fossil fuel.

  • Marginal note:End of reference period

    (4) The reference period ends on the earlier of

    • (a) the day that is six months after the day determined in accordance with subsection (3), and

    • (b) May 25 of the year that follows the year during which that reference period begins.

  • Marginal note:Periods for stack test determinations

    (5) An initial test that is conducted by means of one or more stack tests must include at least one stack test that is conducted during each of the following periods within the reference period:

    • (a) if there is a change in the type of gaseous fossil fuel combusted during the reference period,

      • (i) a period during which natural gas is combusted, and

      • (ii) a period during which alternative gas is combusted;

    • (b) in the case of a modern heater, if equipment to preheat air is installed or removed during the reference period,

      • (i) a period during which that equipment is operating, and

      • (ii) a period during which there is no preheated air; and

    • (c) in the case of a boiler, or a heater other than a modern heater, if equipment to preheat air is installed during the reference period, a period during which that equipment is operating.

  • Marginal note:Determination of type of fuel

    (6) The type of fuel — natural gas or alternative gas — that is combusted in a boiler’s or heater’s combustion chamber must be determined for each hour during the initial test.

 
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