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Air Pollution Control Source Testing

Air Pollution Control Source Testing. Source Testing (Stack Sampling). why? methods of determining ER source testing sampling train process of sampling (PM) location of sampler, probe calculating ER is it isokinetic?. Why Sample Stack?. need ER. Methods of Determining ER.

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Air Pollution Control Source Testing

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  1. Air Pollution ControlSource Testing

  2. Source Testing (Stack Sampling) • why? • methods of determining ER • source testing • sampling train • process of sampling (PM) • location of sampler, probe • calculating ER • is it isokinetic?

  3. Why Sample Stack? • need ER

  4. Methods of Determining ER • Mass Balance/ Engineering Calculations • if (mass in) > (mass out) then mass loss → • evaporation rate, chemical kinetics

  5. Methods of Determining ER • Emission Factors (in kg/Mg lime produced)

  6. Methods of Determining ER • Source Testing • quantify process η • C of A • test APCD • calibrate CEM • Ontario Source Testing Code • MOE Procedure A-1-1

  7. Source Testing (PM) • sampling train

  8. Source Testing (PM)

  9. Process of Sampling • define the problem • understand the process • visit the site • preliminary test • source sampling • analysis, result

  10. Process of Sampling • define the problem • what to sample? • why? • understand the process • visit the site • preliminary test • source sampling • analysis, result

  11. Process of Sampling • define the problem • understand the process • feed rate, production rate, APC • T. RH, estimate of PM conc., loading, gas composition • visit the site • preliminary test • source sampling • analysis, result

  12. Process of Sampling • define the problem • understand the process • visit the site • accessibility, port location • services (power, water, lab.) • preliminary test • source sampling • analysis, result

  13. Process of Sampling • define the problem • understand the process • visit the site • preliminary test • gas velocity, temperature • gas composition, moisture content • source sampling • analysis, result

  14. Process of Sampling • define the problem • understand the process • visit the site • preliminary test • source sampling • do sampling • lab analysis • check isokineticity • analysis, result

  15. Process of Sampling • define the problem • understand the process • visit the site • preliminary test • source sampling • analysis, result • calculate ER • report

  16. 3. Visit Site • port location • 8 dia. downstream, 2 dia. upstream of disturbance • probe location • 2 perpendicular traverses • divide cross section into equal areas • sample at “centre” of area • different charts for rectangular ducts

  17. Probe Location

  18. Probe Location

  19. determine port height • determine number and location of sampling points

  20. 5. Source Sampling

  21. Problem • calculate ERp , given: Us(avg) = 40 ft/s Vm(ref) = 1.40 m3 Mp = 17,200 mg Ts(avg) = 386 K Ww = 56.6 g Ps = 101.5 kPa stack dia. = 7.0 ft

  22. check if sampling was isokinetic

  23. Source Testing

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