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Analyzing Truck Idling Emission Characteristics
under Altered Testing Conditions
Principal
Investigator:
Dr. Lei Yu
Sponsoring Agency:
Southwest Region University Transportation
Center, SWUTC 167650
Period:
September 1, 2004 ~ August 31, 2005
Research
Abstract:
Emissions of
idling trucks under truck stop and other
conditions are a complicated phenomenon that
must be considered independently of the other
mobile emissions. This is mainly because of the
high amount and a long term of emissions
produced. Various problems are associated with
engine idling, including pollutant emissions,
noise pollution, driver discomfort, and
unnecessary fuel and maintenance costs. In this
project, the truck emissions and fuel
consumption in the idling are analyzed by
collecting data using an advanced portable
emission measurement system (PEMS), which is
particularly different from the traditional
emission estimation approaches (e.g. MOBILE
modeling), where emission estimations are
normally based on the emission data collected
from the in-laboratory emission testing.
This project
firstly test and analyze the idle emission
characteristics of cold start engine. Then, idle
emissions with and without prior on-road driving
are analyzed. Furthermore, factors influencing
the truck idle emissions are clarified and
modeled, including the roadway facility type,
distance and duration of driving before idle
testing. Finally the tested idle emissions are
compared with the traditional modeling
approaches such as MOBILE6.2, and documentation
of the research findings is provided.
Research
Information
For further
information about the research, please contact
Dr. Lei Yu by telephone at
(713) 313-7282 or by e-mail at
yu_lx@tsu.edu.
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