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DE2004827737

Publication Date	2004
Personal Author	Partridge, W. P.; Storey, J. M. E.
Page Count	16
Abstract	Transient emissions occur throughout normal engine operation and can significantly contribute to overall system emissions. Such transient emissions may originate from various sources including cold start, varying load and exhaust-gas recirculation (EGR) rates; all of which are dynamic processes in the majority of engine operation applications. Alternatively, there are systems which are inherently dynamic even at steady-state engine-operation conditions. Such systems include catalytic exhaust-emissions treatment devices with self-initiated and sustained oscillations and NOX adsorber systems. High-speed diagnostics, capable of temporally resolving such emissions transients, are required to characterize the process, verify calculated system inputs, and optimize the system.
Keywords	Emission control Mass spectrometry Air pollution control equipment Diesel engines Diesel fuels Exhaust emissions Transients Exhaust gases Recirculation Catalysts Oscillations Adsorbers Diagnostics
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200514

Resolving Emissions Dynamics Via Mass Spectrometry: Time-Resolved Measurements of Emission Transients by Mass Spectrometry.

Resolving Emissions Dynamics Via Mass Spectrometry: Time-Resolved Measurements of Emission Transients by Mass Spectrometry.
DE2004827737

Publication Date	2004
Personal Author	Partridge, W. P.; Storey, J. M. E.
Page Count	16
Abstract	Transient emissions occur throughout normal engine operation and can significantly contribute to overall system emissions. Such transient emissions may originate from various sources including cold start, varying load and exhaust-gas recirculation (EGR) rates; all of which are dynamic processes in the majority of engine operation applications. Alternatively, there are systems which are inherently dynamic even at steady-state engine-operation conditions. Such systems include catalytic exhaust-emissions treatment devices with self-initiated and sustained oscillations and NOX adsorber systems. High-speed diagnostics, capable of temporally resolving such emissions transients, are required to characterize the process, verify calculated system inputs, and optimize the system.
Keywords	Emission control Mass spectrometry Air pollution control equipment Diesel engines Diesel fuels Exhaust emissions Transients Exhaust gases Recirculation Catalysts Oscillations Adsorbers Diagnostics
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200514