A Review of Sampling Condition Effects on Polynuclear Aromatic Hydrocarbons (PNA) from Heavy-Duty Diesel Engines

Format:

Conference/Event

Author/Creator:

Williams, Ronald L., author.

Conference Name:

1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1985-10-21 : Tulsa, Oklahoma, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1985

Summary:

Reports published by Gulf R&D Company 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

Notes:

Vendor supplied data

Publisher Number:

852081

Access Restriction:

Restricted for use by site license