C
Christopher S. Weaver
Researcher at National Renewable Energy Laboratory
Publications - 4
Citations - 149
Christopher S. Weaver is an academic researcher from National Renewable Energy Laboratory. The author has contributed to research in topics: Crankcase & Diesel fuel. The author has an hindex of 4, co-authored 4 publications receiving 141 citations.
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Journal ArticleDOI
Evaluation and Comparison of Portable Emissions Measurement Systems and Federal Reference Methods for Emissions from a Back-Up Generator and a Diesel Truck Operated on a Chassis Dynamometer
Thomas D. Durbin,Kent C. Johnson,David R. Cocker,J. Wayne Miller,Hector Maldonado,Atul Shah,Carl D. Ensfield,Christopher S. Weaver,Mike Akard,Neal Harvey,James Symon,Thomas Lanni,William D. Bachalo,Greg Payne,Greg Smallwood,Manfred Linke +15 more
TL;DR: In this study, four commercial PEMS were compared with a Federal Reference Method for measuring emissions from a back-up generator over steady-state loads and a diesel truck on transient and steady- state chassis dynamometer tests.
Journal ArticleDOI
Detailed characterization and profiles of crankcase and diesel particulate matter exhaust emissions using speciated organics.
Barbara Zielinska,David E. Campbell,Douglas R. Lawson,Robert G. Ireson,Christopher S. Weaver,Thomas W. Hesterberg,Timothy V. Larson,Mark Davey,L.-J. Sally Liu +8 more
TL;DR: It is found that organic carbon emission rates were generally higher from the crankcase than from the tailpipe for these two school buses, while elemental carbon contributed significantly only in the Tailpipe emissions.
Journal ArticleDOI
Quantification of Self Pollution from Two Diesel School Buses using Three Independent Methods.
L.-J. Sally Liu,L.-J. Sally Liu,L.-J. Sally Liu,Harish C. Phuleria,Harish C. Phuleria,Whitney Webber,Mark Davey,Douglas R. Lawson,Robert G. Ireson,Barbara Zielinska,John M. Ondov,Christopher S. Weaver,Charles A. Lapin,Michael Easter,Thomas W. Hesterberg,Timothy V. Larson +15 more
TL;DR: Monitoring two Seattle school buses to quantify the buses' self pollution using the dual tracers (DT), lead vehicle (LV), and chemical mass balance (CMB) methods confirmed buses' SP using three independent methods and quantified crankcase emissions as the dominant contributor.
Journal ArticleDOI
Measuring In-Cabin School Bus Tailpipe and Crankcase PM2.5: A New Dual Tracer Method
Robert G. Ireson,John M. Ondov,Barbara Zielinska,Christopher S. Weaver,Michael Easter,Douglas R. Lawson,Thomas W. Hesterberg,Mark Davey,L.-J. Sally Liu +8 more
TL;DR: The dual tracer method now offers researchers a new technique for explicit identification of single source contributions in settings with multiple sources of carbonaceous emissions.