PMID: 18720653Aug 30, 2008Paper

Real-world in-use activity, fuel use, and emissions for nonroad construction vehicles: a case study for excavators

Journal of the Air & Waste Management Association
Saeed AbolhasaniShih-Hao Pang

Abstract

A study design was developed and demonstrated for deployment of a portable emission measurement system (PEMS) for excavators. Excavators are among the most commonly used vehicles in construction activities. The PEMS measured nitric oxide, carbon monoxide, hydrocarbons, carbon dioxide, and opacity-based particulate matter. Data collection, screening, processing, and analysis protocols were developed to assure data quality and to quantify variability in vehicle fuel consumption and emissions rates. The development of data collection procedures was based on securing the PEMS while avoiding disruption to normal vehicle operations. As a result of quality assurance, approximately 90% of the attempted measurements resulted in valid data. On the basis of field data collected for three excavators, an average of 50% of the total nitric oxide emissions was associated with 29% of the time of operation, during which the average engine speed and manifold absolute pressure were significantly higher than corresponding averages for all data. Mass per time emission rates during non-idle modes (i.e., moving and using bucket) were on average 7 times greater than for the idle mode. Differences in normalized average rates were influenced more by int...Continue Reading

References

May 18, 2001·Environmental Science & Technology·J C PruczD W Lyons
Aug 29, 2003·Journal of the Air & Waste Management Association·H Christopher FreyJames D Colyar
Sep 5, 2009·Journal of the Air & Waste Management Association·Feng ZhenDonald W Lyons
Nov 19, 2009·Journal of Patient Safety·Christopher NemethRichard I Cook

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Citations

Nov 29, 2013·Journal of the Air & Waste Management Association·Shauna L HallmarkRobert Sperry
Jul 15, 2011·Journal of the Air & Waste Management Association·Muhammad Ehsanul BariMohamadreza Farzaneh
May 8, 2015·Journal of the Air & Waste Management Association·Bardia Heidari, Linsey C Marr
Nov 3, 2016·Journal of the Air & Waste Management Association·Zhen LiBaofeng Di
Apr 6, 2017·Journal of the Air & Waste Management Association·Miguel ZavalaLuisa T Molina
Jun 12, 2019·Journal of the Air & Waste Management Association·Melissa DayVenkatesh Rao
Jul 11, 2019·Journal of the Air & Waste Management Association·Hassanean S H JassimThomas Olofsson
Apr 24, 2019·Environmental Science and Pollution Research International·Samad M E SepasgozarVivian W Y Tam
Aug 9, 2021·The Science of the Total Environment·Dan TanYan Ding

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