A review of sampling condition effects on Polynuclear Aromatic Hydrocarbons (PNA) from heavy-duty diesel engines

Ronald L. Williams; Joseph Manuel Sr Perez; Margaret E. Griffing

doi:10.4271/852081

A review of sampling condition effects on Polynuclear Aromatic Hydrocarbons (PNA) from heavy-duty diesel engines

Ronald L. Williams, Joseph Manuel Sr Perez, Margaret E. Griffing

Chemical Engineering

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Reports published by Gulf R&D Co. and Battelle Columbus Laboratories under contract to the Coordinating Research Council's APRAC project group CAPE-24 were reviewed. Both studies failed to verify the accuracy of polynuclear aromatic hydrocarbon (PNA) emission measurements from heavy-duty diesel engines. Thermal decomposition and chemical reactions of the PNA occur in raw exhaust at temperatures above 500°F. Therefore, pipes which transfer exhaust to dilution tunnels can significantly reduce the apparent emission values. Dilution tunnel conditions have comparatively little effect on PNA measurements. However, vapor traps are required behind particle filters to assure complete collection of 4-ring PNA compounds. Guidelines are presented for controlling and testing sampling systems for accurate PNA emission measurements.

Original language	English (US)
DOIs	https://doi.org/10.4271/852081
State	Published - Dec 1 1985
Event	International Fuels and Lubricants Meeting and Exposition - Tulsa, OK, United States Duration: Oct 21 1985 → Oct 24 1985

Other

Other	International Fuels and Lubricants Meeting and Exposition
Country/Territory	United States
City	Tulsa, OK
Period	10/21/85 → 10/24/85

All Science Journal Classification (ASJC) codes

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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10.4271/852081

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title = "A review of sampling condition effects on Polynuclear Aromatic Hydrocarbons (PNA) from heavy-duty diesel engines",

abstract = "Reports published by Gulf R&D Co. and Battelle Columbus Laboratories under contract to the Coordinating Research Council's APRAC project group CAPE-24 were reviewed. Both studies failed to verify the accuracy of polynuclear aromatic hydrocarbon (PNA) emission measurements from heavy-duty diesel engines. Thermal decomposition and chemical reactions of the PNA occur in raw exhaust at temperatures above 500°F. Therefore, pipes which transfer exhaust to dilution tunnels can significantly reduce the apparent emission values. Dilution tunnel conditions have comparatively little effect on PNA measurements. However, vapor traps are required behind particle filters to assure complete collection of 4-ring PNA compounds. Guidelines are presented for controlling and testing sampling systems for accurate PNA emission measurements.",

author = "Williams, {Ronald L.} and Perez, {Joseph Manuel Sr} and Griffing, {Margaret E.}",

year = "1985",

month = dec,

day = "1",

doi = "10.4271/852081",

language = "English (US)",

note = "International Fuels and Lubricants Meeting and Exposition ; Conference date: 21-10-1985 Through 24-10-1985",

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TY - CONF

T1 - A review of sampling condition effects on Polynuclear Aromatic Hydrocarbons (PNA) from heavy-duty diesel engines

AU - Williams, Ronald L.

AU - Perez, Joseph Manuel Sr

AU - Griffing, Margaret E.

PY - 1985/12/1

Y1 - 1985/12/1

N2 - Reports published by Gulf R&D Co. and Battelle Columbus Laboratories under contract to the Coordinating Research Council's APRAC project group CAPE-24 were reviewed. Both studies failed to verify the accuracy of polynuclear aromatic hydrocarbon (PNA) emission measurements from heavy-duty diesel engines. Thermal decomposition and chemical reactions of the PNA occur in raw exhaust at temperatures above 500°F. Therefore, pipes which transfer exhaust to dilution tunnels can significantly reduce the apparent emission values. Dilution tunnel conditions have comparatively little effect on PNA measurements. However, vapor traps are required behind particle filters to assure complete collection of 4-ring PNA compounds. Guidelines are presented for controlling and testing sampling systems for accurate PNA emission measurements.

AB - Reports published by Gulf R&D Co. and Battelle Columbus Laboratories under contract to the Coordinating Research Council's APRAC project group CAPE-24 were reviewed. Both studies failed to verify the accuracy of polynuclear aromatic hydrocarbon (PNA) emission measurements from heavy-duty diesel engines. Thermal decomposition and chemical reactions of the PNA occur in raw exhaust at temperatures above 500°F. Therefore, pipes which transfer exhaust to dilution tunnels can significantly reduce the apparent emission values. Dilution tunnel conditions have comparatively little effect on PNA measurements. However, vapor traps are required behind particle filters to assure complete collection of 4-ring PNA compounds. Guidelines are presented for controlling and testing sampling systems for accurate PNA emission measurements.

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U2 - 10.4271/852081

DO - 10.4271/852081

M3 - Paper

T2 - International Fuels and Lubricants Meeting and Exposition

Y2 - 21 October 1985 through 24 October 1985

ER -

A review of sampling condition effects on Polynuclear Aromatic Hydrocarbons (PNA) from heavy-duty diesel engines

Abstract

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All Science Journal Classification (ASJC) codes

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