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

Regulations are current to 2019-08-15

PART 2Stationary Spark-ignition Engines (continued)

Determination of NOx Emission Intensity (continued)

Emissions Checks (continued)

Marginal note:Invalid emissions check — calibration and interference

 If a calibration error check on a cell of an analyzer does not meet the requirements of subsection 83(6) or a determination — based on the readings taken during a sequence of calibration error checks that includes that calibration error check — of the CO interference response made under subsection 84(2), or of the NO interference response made under subsection 84(3), is more than 5%,

  • (a) any emissions check that is conducted with the analyzer, since the most recent sequence of calibration error checks on the analyzer, is invalid; and

  • (b) no emissions check that is conducted with the analyzer is valid until

    • (i) a sequence of calibration error checks on its cells is conducted for which each calibration error check meets the requirements of subsection 83(6), and

    • (ii) a determination — based on the readings taken during that sequence — of at most 5% is made in accordance with subsections 84(2) and 84(3) of the CO interference response and of the NO interference response, respectively.

Marginal note:Emissions check — sampling ports

  •  (1) The location in the exhaust pipe of the sampling port and its traverse points — or the single traverse point — at which an emissions check is to be conducted must be

    • (a) the same as the location of the sampling port or the single traverse point that is used for the most recent performance test conducted, if that port or point continues to be available; and

    • (b) determined in accordance with section 71, in any other case.

  • Marginal note:Single point

    (2) A single traverse point at the centre of the exhaust pipe at the sampling port may be used to take samples instead of multiple traverse points.

Marginal note:Operating conditions for emissions checks

 The emissions check must be conducted while the engine is

  • (a) operating with a rated brake power

    • (i) that is at most 10% below the brake power at which it operated most of the time during the previous 90 days, if that brake power during that time is at least 50% of its rated brake power, and

    • (ii) that is at least 40% of its rated brake power, in any other case; and

  • (b) not operating during start-up, shutdown or a period of malfunction.

Marginal note:Emissions check — sampling procedure

  •  (1) The emissions check must be conducted — on an engine’s exhaust gas introduced into the analyzer at a constant flow rate — during a 15-minute sampling period by

    • (a) taking a reading of each of its electrochemical cells’ responses to, as applicable, O2, CO, NO and NO2 in the exhaust gas at least once each minute during that period and at least 15 seconds after a previous reading; or

    • (b) recording the average, over each minute of that period, of each of those cells’ responses to, as applicable, O2, CO, NO and NO2 in the exhaust gas.

  • Marginal note:NO cell temperature

    (2) If the emissions check is conducted with an analyzer that does not display negative concentrations, the NO cell temperature must be recorded at least once each minute during the 15-minute sampling period.

  • Marginal note:Beginning of sampling period

    (3) The sampling period begins after the end of the period that begins with the introduction of the engine’s exhaust gas into the analyzer for the emissions check and that has a duration determined by the formula

    2Ts + {π/4 × [(dE2 × LE)/QE − (dC2 × LC)/QC]}

    where

    Ts
    is the stabilization period, expressed in seconds, referred to in subsection 83(5) for the most recent sequence of calibration error checks conducted on the analyzer;
    dE
    is the greatest diameter, expressed in m, of any tube that is used in the measurement system through which the engine’s exhaust gas flows from the sampling port or traverse point to the analyzer during the emissions check;
    LE
    is the total length, expressed in m, of those tubes that are used during the emissions check;
    QE
    is the flow rate, expressed in m3/s, of the engine’s exhaust gas measured by the analyzer during the emissions check;
    dC
    is the smallest diameter, expressed in m, of any tube that is used in the measurement system through which the span gas flows from the point where it is introduced into the measurement system to the analyzer during the most recent sequence of calibration error checks conducted on the analyzer;
    LC
    is the total length, expressed in m, of those tubes that are used during the most recent sequence of calibration error checks conducted on the analyzer; and
    QC
    is the flow rate, expressed in m3/s, of the span gas for NO measured by the analyzer during the most recent sequence of calibration error checks conducted on the analyzer.

Marginal note:Concentration of O2, CO, NO and NO2 — average

  •  (1) The concentration of O2, CO, NO and NO2, as the case may be, in the exhaust gas determined by the emissions check is the average of the concentrations of the gas in each reading taken or recording made in accordance with subsection 88(1).

  • Marginal note:Concentration of NOx

    (2) The concentration of NOx in the exhaust gas, expressed in ppmvd15%, must be determined by the formula

    5.9Cd/(20.9 – %O2)

    where

    Cd
    is the sum of the concentrations of NO and NO2 in the engine’s exhaust gas as determined in accordance with subsection (1), expressed in ppmvd, at the concentration of O2, determined in accordance with that subsection; and
    %O2
    is the number that represents the percentage of oxygen in the engine’s exhaust gas based on the concentration of O2 determined in accordance with that subsection.

Marginal note:Invalid emissions check — temperature

  •  (1) If there is a difference of more than 3°C between any two NO cell temperatures that are recorded in accordance with subsection 88(2), the emissions check in question and any concentration that is determined in accordance with section 89 are invalid.

  • Marginal note:Invalid emissions check — cell measuring range

    (2) If any reading taken of an electrochemical cell’s response, or recording that is made of the average of the responses of that cell, in accordance with subsection 88(1) during an emissions check with an analyzer to determine a concentration in accordance with section 89 is outside the measuring range for that cell specified by the analyzer’s manufacturer,

    • (a) the emissions check and any concentration that is determined in accordance with that section are invalid; and

    • (b) no emissions check that is conducted with the analyzer is valid until

      • (i) a sequence of calibration error checks on its cells is conducted for which each calibration error check meets the requirements of subsection 83(6), and

      • (ii) a determination — based on the readings taken during that sequence — of at most 5% is made in accordance with subsections 84(2) and (3) of the CO interference response and of the NO interference response, respectively.

Performance Tests and Emissions Checks

Marginal note:Periods when not conducted

 A performance test or an emissions check must not be conducted during any period referred to in section 49.

Marginal note:Extended period for new owners

 Despite any of paragraphs 77(a) to (c) or section 78 or 79, a person who becomes an owner of an engine — on a date during the last 90 days of the period for conducting a performance test or emissions check on the engine referred to in that provision with no performance test or emissions check on the engine having yet been conducted in that period — may conduct the performance test or emissions check within a period of 90 days after that date.

Marginal note:Extended period — last day

 Despite any of paragraphs 77(a) to (c) or section 78, 79 or 92, a performance test or emissions check that is referred to in that provision and that has not been conducted by the last day of the period for conducting the performance test or emissions check referred to in that provision must be conducted

  • (a) if that last day occurs in a period referred to in section 49 or a period when the engine is not operating, on the first day that occurs that is not in either of those periods; or

  • (b) if that last day occurs in a period while an election to have the engine be low-use is in effect, on or by the day, if any, after that period ends.

Engine Management

Marginal note:Nameplate

  •  (1) An engine that is low-use or that is subject to a NOx emission intensity limit referred to in any of sections 54 and 57 to 59 — or an engine or replacement unit that belongs to a subgroup — must have a nameplate that is permanently affixed to it in a visible location and that indicates

    • (a) its serial number or, if the serial number is not known or cannot be obtained, its unique alphanumeric identifier referred to in subsection (3);

    • (b) its make and model; and

    • (c) its rated brake power.

  • Marginal note:Serial number

    (2) The serial number must be the serial number provided by the engine or replacement unit’s manufacturer

    • (a) on the original nameplate affixed to it;

    • (b) as engraved on the original crankcase; or

    • (c) as set out in a document that is provided by its manufacturer.

  • Marginal note:Unique alphanumeric identifier

    (3) If the serial number is not known or cannot be obtained, the responsible person for a pre-existing engine or a replacement unit that is not a modern engine may apply to the Minister for a unique alphanumeric identifier for the engine or replacement unit by providing the Minister with

    • (a) the information set out in Schedule 9, other than the engine’s or replacement unit’s serial number or unique alphanumeric identifier; and

    • (b) the reason why the serial number is not known or cannot be obtained.

  • Marginal note:Refusal

    (4) The Minister must refuse the application if the Minister has reasonable grounds to believe that the applicant has provided false or misleading information in the application.

 
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