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Fine PM Source Test Method Ron Myers/Tom Logan Emissions Measurement Center.

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Presentation on theme: "Fine PM Source Test Method Ron Myers/Tom Logan Emissions Measurement Center."— Presentation transcript:

1 Fine PM Source Test Method Ron Myers/Tom Logan Emissions Measurement Center

2 Project Goals Minimize Pseudo Particulate Formation Quantify Course & Fine PM –Use Dilution Sampling to Mimic Atmospheric Physics –Operationally Simple –Minimal Sample Location Limitations Speciation of Particulate

3 Description In Stack Particle Sizing –Large Cyclone Separates PM >10  M –Smaller Cyclone Separates PM >2.5  M Air Dilution Condenses Vaporous PM –Air is Filtered & Dehumidified –Sample is Diluted up to 40 to 1 PM2.5 is collected on multiple filters

4 Competing Methodologies State Test Methods –More Than Four Variants –Similar to Method 202 U.S. EPA Test Methods –Preliminary Method 004 (M201A +2.5) –Method 202 Research Methods –More Than Six Variants –All Based on Dilution Sampling

5 EPA Reference Methods EPA Pre Method 4 & Method 202 Strengths –Compact –Uses Existing Sampling Systems –Applicable to Almost All Sources Weaknesses –Optional Procedures Allowed –Potential Biases

6 Existing Dilution Methods More than Six Variants –With/Without Stack Particle Sizing –Different Residence Times –Dilution Ratios Strengths –Condense Particulate by Dilution Weaknesses –Heavy, Bulky, Complex

7 Typical Research Test Method


9 Existing Sampler

10 In Stack Particle Sizers

11 Heated Sample Venturi

12 Dehumidifier / HEPA Filter

13 Mixing Chamber

14 Dilution Air Mixer

15 Major Components

16 Aliquot of diluted sample extracted for speciation analysis Denuders used to remove potentially reactive gases Speciation Filter Module

17 Schedule Expected Need in FY 2004 Evaluation Phase DecAprAugDecAprAugDecAprAugDecApr Development Phase Standardization 2001200220032004

18 Current Status Completing Hardware Development –Hardware Operates as Expected Sample Rate Maintained Isokinetics Maintained Dilution Ratios Maintained Temperatures Maintained –Have Final Results from 2 nd Hardware Shakedown Test Completed Two Comparison Tests –Modified URG Dilution Sampler –Pre M4 & Method 202

19 Preliminary Results of Second Test Hardware Evaluation Coal Fired Utility M17/202 Performed Previous Year ESP Rebuild Before EPA Test Concentration (gr/dscf) Sampling Method & Process Operation 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05 Dilution Sampling System (7ppm SO3) Method 17/202 9ppm SO3 Method 17/202 15 – 18 ppm SO3 FPM OCPM ICPM Ps PM DST M17/202 PM <2.5 PM >2.5

20 Preliminary Results of Third Test Oil Fired Boiler –At <20% Load Poor Test Location –Expanding Duct –In 90 o Turn Very Complex Speciation Concentration (mg/dscm) 0 5 10 15 20 25 30 35 40 123123 Test Method and Run number ORD DST OAQPS DST

21 Preliminary Results of Fourth Test Portland Cement Plant 20 to 130 ppm NH 3 500 ppm SO 2 500 ppm NO x -15 5 25 45 65 85 105 125 R 1R 2R 3R 1R 2R 3 PM (mg/dscm) Mill OffMill On CPM (ACT) CPM (M202) CPM (EPA) FPM2.5 PM >2.5

22 Operating OAQPS Sample Train


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