Climate Change (Stationary Energy and Industrial Processes) Regulations 2009

24 Continuous emissions monitoring method for calculating emissions from combusting used oil, waste oil, used tyres, or municipal waste

• (1) A person who wishes to use the continuous emissions monitoring method to calculate emissions from a class of used oil, waste oil, used tyres, or municipal waste must,—

  • (a) using continuous monitoring equipment, at least every 30 minutes during the operation of the monitoring equipment,—

    • (i) measure in accordance with the procedures in ISO 10780:1994 or ISO 14164:1999 the volumetric flow rate for the stacks from which gases resulting from combustion of the class of used oil, waste oil, used tyres, or municipal waste are emitted; and

    • (ii) have tests to measure the CO₂, CH₄, and N₂O concentrations in the gas stream from the stacks carried out in accordance with one of the following standards by a person or laboratory that is accredited according to ISO 17025:2005 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or by an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements to carry out the tests:

      • (A) ISO 12039:2001:

      • (B) USEPA—Method 3A—2006:

      • (C) USEPA—Method 3C—1996 (modified, if used for N₂O):

      • (D) VDI 2649–1 (measurement of nitrous oxide):

      • (E) ASTM D6348–03 (determination of gaseous compounds); and

  • (b) at the time of each of the measurements in paragraph (a), also measure and record—

    • (i) the pressure of the gas stream in kilopascals:

    • (ii) the temperature, in Kelvin, of the gas stream; and

  • (c) using each set of data obtained under paragraphs (a) and (b), calculate the rate of emissions of CO₂, CH₄, and N₂O from the stacks at the time of measurement in accordance with the following formula:

    	mrgastype		=		mwgastype × P × F × C
    					R × T

    where—

    C

    is the concentration by volume of CO₂, CH₄, or N₂O, as the case may be, in the gas stream at the time of measurement

    F

    is the flow rate of the gas stream in cubic metres per second, at the time of measurement

    mr_gastype

    is the rate of each of CO₂, CH₄, and N₂O emitted in tonnes of gas type released per second

    mw_gastype

    is the molecular mass of CO₂, CH₄, or N₂O, as the case may be, in tonnes per kilomole, where—

    • (a) CO₂ and N₂O values are 0.044; and

    • (b) CH₄ value is 0.016

    P

    is the pressure of the gas stream in kilopascals at the time of measurement

    R

    is 8.314, the universal gas constant when expressed in J/K.mol; and

    T

    is the temperature, in Kelvin, of the gas at the time of measurement; and

  • (d) using the results of the calculations under paragraph (c), estimate a representative rate of emissions for each mr_gastype per hour; and

  • (e) estimate total emissions for the year of each of CO₂, CH₄, and N₂O in accordance with the following formula:

    E_{gastype year}= mr_{gastype hour} × t

    where—

    E_{gastype year}

    is the emissions for each of CO₂, CH₄, and N₂O emitted for the year in tonnes

    mr_{gastype hour}

    is the representative rate of each of CO₂, CH₄, and N₂O per hour for each hour of the year, as determined under paragraph (d)

    t

    is the number of hours that the equipment has operated in the year.

  • (f) calculate the emissions for the class of used or waste oil, used tyres, or municipal waste in accordance with the following formula:

    E₃ = (E_{CO2 year} × G) + (E_{CH4 year} × 21) + (E_{N2O year} × 310)

    where—

    E₃

    is the emissions for the class of used or waste oil, used tyres, or municipal waste combusted in the particular equipment in the year in tonnes

    E_{gastype year}

    is the emissions of each of CO₂, CH₄ and N₂O for the year, as determined under paragraph (e)

    G

    is,—

    • (a) if the fuel combusted contains biomass, the representative non-biomass fraction of E_{CO2 year} determined in accordance with ASTM D6866–08; or

    • (b) in every other case, 1.

  (2) For the purposes of the tests in subclause (1)(a) and(b),—

  • (a) the relevant monitoring equipment must operate for more than 90% of the time period over which emissions are monitored (excluding any period during which the equipment is not in operation because it is being calibrated); and

  • (b) if part of the monitoring equipment is not operating for a period, readings taken during periods when the equipment was operating may be used to estimate data on a pro rata basis for the period that the equipment was not operating; and

  • (c) the calibration gases used in characterisation of the monitoring equipment must be certified by a person or laboratory accredited to ISO 34:2000 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements, as being within 2% of the concentration specified on the cylinder label.

  Regulation 24 heading: amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(1) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).

  Regulation 24(1): amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(2) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).

  Regulation 24(1)(a)(i): amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(3) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).

  Regulation 24(1)(e): substituted (with effect on 1 January 2010), on 25 September 2010, by regulation 10 of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2010 (SR 2010/340).

  Regulation 24(1)(f): amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(4) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).

  Regulation 24(1)(f): amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(5) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).

  Regulation 24(1)(f) formula item E₃: amended, on 1 February 2012 (applying on and from 1 January 2011), by regulation 12(6) of the Climate Change (Stationary Energy and Industrial Processes) Amendment Regulations 2011 (SR 2011/364).