scholarly journals Development of an Activity-based Windowing Approach to Evaluate Real-World NOx Emissions from Modern Medium and Heavy-Duty Diesel Trucks

2020 ◽  
Author(s):  
Rasik Pondicherry
Keyword(s):  
Real World ◽  
Nox Emissions ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Diesel Trucks

scholarly journals Investigating Real-World Emissions of China’s Heavy-Duty Diesel Trucks: Can SCR Effectively Mitigate NOx Emissions for Highway Trucks?

2017 ◽  
Vol 17 (10) ◽  
pp. 2585-2594 ◽  
Author(s):  
Liqiang He ◽  
Jingnan Hu ◽  
Shaojun Zhang ◽  
Ye Wu ◽  
Xing Guo ◽  
...  
Keyword(s):  
Real World ◽  
Nox Emissions ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Diesel Trucks

scholarly journals Understanding elevated real-world NOx emissions: Heavy-duty diesel engine certification testing versus in-use vehicle testing

Fuel ◽  
2022 ◽  
Vol 307 ◽  
pp. 121771
Author(s):  
Yu Jiang ◽  
Yi Tan ◽  
Jiacheng Yang ◽  
Georgios Karavalakis ◽  
Kent C. Johnson ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Real World ◽  
Nox Emissions ◽  
Heavy Duty ◽  
Certification Testing ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel ◽  
Vehicle Testing

Real-world Emissions From 40 Heavy-Duty Diesel Trucks Recruited at Tulare, CA Rest Area

2002 ◽  
Author(s):  
Michal Vojtisek-Lom ◽  
Douglas C. Lambert ◽  
P. Joshua Wilson
Keyword(s):  
Real World ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Diesel Trucks

scholarly journals Characterization of Real-World Pollutant Emissions and Fuel Consumption of Heavy-Duty Diesel Trucks with Latest Emissions Control

Atmosphere ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 535 ◽  
Author(s):  
Christos Keramydas ◽  
Leonidas Ntziachristos ◽  
Christos Tziourtzioumis ◽  
Georgios Papadopoulos ◽  
Ting-Shek Lo ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Real World ◽  
Emission Factors ◽  
Pollutant Emissions ◽  
Particulate Filter ◽  
Emission Measurement ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Diesel Trucks ◽  
The Impact

Heavy-duty diesel trucks (HDDTs) comprise a key source of road transport emissions and energy consumption worldwide mainly due to the growth of road freight traffic during the last two decades. Addressing their air pollutant and greenhouse gas emissions is therefore required, while accurate emission factors are needed to logistically optimize their operation. This study characterizes real-world emissions and fuel consumption (FC) of HDDTs and investigates the factors that affect their performance. Twenty-two diesel-fueled, Euro IV to Euro VI, HDDTs of six different manufacturers were measured in the road network of the Hong Kong metropolitan area, using portable emission measurement systems (PEMS). The testing routes included urban, highway and mixed urban/highway driving. The data collected corresponds to a wide range of driving, operating, and ambient conditions. Real-world distance- and energy-based emission levels are presented in a comparative manner to capture the effect of after-treatment technologies and the role of the evolution of Euro standards on emissions performance. The emission factors’ uncertainty is analyzed. The impact of speed, road grade and vehicle weight loading on FC and emissions is investigated. An analysis of diesel particulate filter (DPF) regenerations and ammonia (NH3) slip events are presented along with the study of Nitrous oxide (N2O) formation. The results reveal deviations of real-world HDDTs emissions from emission limits, as well as the significant impact of different operating and driving factors on their performance. The occasional high levels of N2O emissions from selective catalytic reduction equipped HDDTs is also revealed, an issue that has not been thoroughly considered so far.

scholarly journals Real-World Emissions from Modern Heavy-Duty Diesel, Natural Gas, and Hybrid Diesel Trucks Operating Along Major California Freight Corridors

2016 ◽  
Vol 2 (3) ◽  
pp. 156-172 ◽  
Author(s):  
David C. Quiros ◽  
Arvind Thiruvengadam ◽  
Saroj Pradhan ◽  
Marc Besch ◽  
Pragalath Thiruvengadam ◽  
...  
Keyword(s):  
Natural Gas ◽  
Real World ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Diesel Trucks

Real World Study of Diesel Particulate Filter Ash Accumulation in Heavy-Duty Diesel Trucks

2006 ◽  
Author(s):  
Ken Kimura ◽  
Mike Lynskey ◽  
Eric R. Corrigan ◽  
David L. Hickman ◽  
Jerry Wang ◽  
...  
Keyword(s):  
Real World ◽  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Heavy Duty ◽  
Diesel Particulate ◽  
Heavy Duty Diesel ◽  
Diesel Trucks
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