Emission Measurement Equipment: Behind the Liesethoscon.com/pdf/ETHOS/ETHOS2016/Thompson.pdfEmission...
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Emission Measurement Equipment: Behind the Lies Ryan Thompson Mountain Air Engineering January 31, 2016
Transcript of Emission Measurement Equipment: Behind the Liesethoscon.com/pdf/ETHOS/ETHOS2016/Thompson.pdfEmission...
Emission Measurement Equipment:
Behind the LiesRyan Thompson
Mountain Air EngineeringJanuary 31, 2016
Ratmouth Research FacilityDorena Lake, OregonWaltech SystemsMountain Air Engineering
“Know the truth and it will set you free.”
-Rod Deal
History of Emissions Equipment
Cookstove Laboratory Emissions Equipment
Cookstove Field Emissions Equipment:Total Capture Hood Method
Field Measurements of Uncontrolled Stove Emissions
• Measurement of the cooking sub-system
• Stove, cooking vessel, fuel, operator
Cookstove Field Emissions Equipment:Partial Capture Carbon Balance Method• Allows field measurements of emission factors
using small, portable equipment
Equipment: ARACHNE
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2
345
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Fumitron: 2015
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Carbon Balance Method Definition:
Carbon Mass Balance Equation
Cfuel – Cchar = CCO2 + CCO + CTHC + CPM
Where:Cfuel mass of carbon in fuel (g)Cchar mass of carbon in remaining char (g)CCO2 mass of carbon in carbon dioxide (g)CCO mass of carbon in carbon monoxide (g)CTHC mass of carbon in total hydrocarbons (g)CPM mass of carbon in particulate matter (g)
Balance the carbon in the emissions with the carbon in the fuel
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Potential Bias of the Partial Capture Sampling Method:
Partial sample may not be representative of total emissions
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Potential Bias of the Partial Capture Sampling Method:
Partial sample may not be representative of total emissions
Potential Bias of the Carbon Balance Method
Fuel carbon ≠ Emitted carbon
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500 g other stuff
500 g carbon
100 g other stuff
250 g carbon
250 g carbon
400 g other stuff
Brick Kiln Emissions
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Project Partners:MAE: Mountain Air EngineeringCHeRN: Climate and Health Research NetworkUofI CEE: University of Illinois Civil and Environmental Engineering DepartmentGreentech Solutions, IndiaICIMOD, NepalCAEM: Corporation Ambiental Ambiental Empresarial ColombiaCCAC: Climate and Clean Air CoalitionUN: United Nations Foundation
Traditional Stack Sampling Equipment
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Foto courtesy Corporation Ambiental Empresarial Colombia
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Ratnoze Dilution Sampler
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Ratnoze Dilution Sampler
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Ratnoze Dilution Sampler• CO• CO2• SO2• CO background• CO2 background• SO2 background• PM2.5 gravimetric filters x 2• Real-time optical PM• Real-time optical BC (MicroAeth)• Stack Velocity• Stack Temp• Sample Temp• Sample RH• Dilution Ratio
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Design Considerations
• Portable, light weight• Robust• Easy to use• Accurate• Affordable
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The Future of Emissions Equipment
• More portable: smaller, lighter– drones
• Cheaper• Bounding the bias and uncertainty of field
emission measurements• Real-time stove flow rate measurement
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