Article
Economics
Daniel Bustos-Coral, Alysson M. Costa
Summary: This paper addresses the drayage routing problems with heterogeneous fleets, compatibility constraints, and truck load configurations. It proposes a state transition logic and two mixed-integer programming models to efficiently model and solve these problems. Extensive computational tests are conducted to analyze the efficiency of the proposed models, and the decision-making assistance of the modeling approach in practical applications is discussed.
TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW
(2022)
Article
Engineering, Civil
Shams Tanvir, Fuad Un-Noor, Kanok Boriboonsomsin, Zhiming Gao
Summary: This study examines the feasibility of operating an electric truck fleet based on real-world data from a diesel drayage operator in Southern California. The results indicate that 85% of drayage activities can be served by electric trucks if there is opportunity for charging at the home base.
TRANSPORTATION RESEARCH RECORD
(2021)
Article
Energy & Fuels
Jianxin Li, Lei Wang, Changxing Ji, Huanran Liu, Linfeng Lu, Ting Zhang, Mingnan Zhao, Shujie Xu
Summary: Light-duty trucks (LDTs) have an important role in last-mile delivery. The electrification pathway can greatly reduce the energy demand and CO2 emissions of the LDT fleet, especially with the increase in the proportion of electric vehicles.
Article
Green & Sustainable Science & Technology
Shifen Cheng, Yibo Zhao, Beibei Zhang, Peng Peng, Feng Lu
Summary: This study accurately identified the sources and emission contributions of nonlocal heavy-duty diesel trucks (HDDTs) through trajectory data mining. The results showed that trucks from Hebei and Tianjin contribute the most to Beijing's emissions, with spatial and temporal patterns affected by distance and major festivals. The emission contribution structure is mainly influenced by traffic volume, highway freight ton-kilometers, and the proportion of the tertiary industry.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Shifen Cheng, Beibei Zhang, Peng Peng, Feng Lu
Summary: This study evaluates the impact of pollution control policies for heavy-duty diesel trucks (HDDTs) in Beijing on PM2.5 concentrations, human health, and economic losses. High spatiotemporal resolution emission data from HDDTs is used to assess the effectiveness of these policies. The results show that upgrading fuel and emission standards can significantly reduce PM2.5 concentrations and prevent premature deaths, resulting in substantial economic benefits.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Energy & Fuels
Shuai Shao, Zhijia Tan, Zhiyuan Liu, Wenlong Shang
Summary: This paper investigates the balance of deploying a mixed fleet of diesel buses and electric buses in order to reduce GHG emissions and operational costs. The study finds that in a real-world bus system in Liuzhou City, China, electric buses are preferred for bus lines in the downtown area during peak hours, while diesel buses are allocated to bus lines in the suburbs during off-peak hours. The analysis shows that replacing all diesel buses with electric buses can lead to a reduction in carbon emissions of up to 77.04%.
Article
Chemistry, Physical
Feiqi Liu, Denise L. Mauzerall, Fuquan Zhao, Han Hao
Summary: Hydrogen fuel cells are gaining attention as a potential carbon mitigation strategy for heavy duty vehicles. This study calculates the greenhouse gas emissions of the Chinese heavy-duty truck fleet under four hydrogen fuel cell penetration scenarios, showing significant reductions in GHG emissions can be achieved by using fuel cell vehicles. By combining an analysis of the carbon intensity of various hydrogen production pathways with predictions of the future hydrogen supply structure in China and different penetration rates of heavy-duty fuel cell vehicles, practical applications of the research are provided.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Zhanming Chen, Long Wang, Xiaochen Wang, Hao Chen, Limin Geng, Nan Gao
Summary: The experimental study found that adding methane and water injection can effectively reduce nitrogen oxide and particle emissions, but increase carbon monoxide and hydrocarbon emissions.
Article
Engineering, Environmental
Po Li, Xiang Li, Hao Wang, Feng Guo
Summary: The study investigates the application of two different ammonia fuel injection systems in a diesel generator and finds that gas phase port injection (GPPI) is more effective in reducing the CO2 content of ammonia in the exhaust gas compared to premixed charge compression ignition (PCCI). However, both modes reduce the thermal efficiency of the generator, with ammonia having a greater negative impact on the thermal efficiency of the PCCI mode.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Transportation
Gina Yeonkyeong Park
Summary: This study quantifies the estimated amount of emissions reduction from the Port Drayage Truck Replacement Program (TRP) at the Port of New York and New Jersey. The research shows that if all eligible trucks are replaced, annual NOx emissions would be reduced by 12.8% and PM2.5 by 1.6%. This highlights the significant impact TRP implementation can have on local air quality, particularly for nearby residents. Considering the benefits, costs, and time, TRP remains one of the most affordable and practical policies to immediately reduce local emissions compared to alternative fuel options.
CASE STUDIES ON TRANSPORT POLICY
(2022)
Article
Engineering, Environmental
Sehmus Altun, Mujdat Firat, Yasin Varol, Mutlu Okcu
Summary: This study compares methanol dual-direct injection (DI2 mode) with port injection of methanol (RCCI mode) when using biodiesel and diesel fuel as High Reactivity Fuels (HRFs). DI2 shows reductions in unburned HC and CO emissions compared to RCCI mode, and slightly higher NOx emissions. In RCCI mode, NOx emissions are significantly reduced, while CO and unburned HC emissions are higher. The study also investigates the effects of premixed ratio (Rp) on combustion performance and ignition delay, finding that DI2 can control inefficient combustion during RCCI operation fueled by diesel fuel and biodiesel.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Thermodynamics
Avinash Kumar Agarwal, Vikram Kumar, Ashutosh Jena Ankur Kalwar
Summary: The future reliance on heavy-duty diesel engines in the transport, agriculture, marine, and power generation sectors, despite emission concerns, can be addressed by adopting alternative fuels like methanol. Retrofitting existing engines for methanol adaptation proves to be a practical solution, as observed in the performance and emissions evaluation of a commercial Genset CI engine.
Article
Chemistry, Physical
G. M. Pinto, T. A. Z. de Souza, R. B. R. da Costa, L. F. A. Roque, G. V. Frez, C. J. R. Coronado
Summary: This study investigates the use of hydrogen port-injection in a four-stroke single-cylinder compression ignition engine operating with renewable diesel-like fuels HVO and farnesane. The results show that hydrogen addition can reduce PM, CO, and CO2 emissions but increase NOx emissions. Moreover, both HVO and farnesane decrease pollutant emissions compared to fossil diesel in single and dual-fuel operations.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Studies
Habib Gurbuz, Selim Demirturk, Ismail Hakki Akcay, Husameddin Akcay
Summary: This paper investigates the impact of ethanol addition and hot exhaust gas recirculation on engine performance, exhaust emissions, and air-pollution damage-cost in a dual-fuel diesel engine. It was found that adding 40% ethanol at 1400 rpm yielded the greatest improvement in engine performance and environmental factors.
ENERGY & ENVIRONMENT
(2021)
Editorial Material
Forestry
Perttu Anttila, Johannes Ojala, Teijo Palander, Kari Vaatainen
Summary: This study examines the effects of road characteristics on driving speed and fuel consumption of timber trucks. The results indicate that road type, season, and load condition significantly influence driving speed and fuel consumption.
Article
Engineering, Environmental
Chelsea V. Preble, Timothy R. Dallmann, Nathan M. Kreisberg, Susanne V. Hering, Robert A. Harley, Thomas W. Kirchstetter
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2015)
Article
Engineering, Environmental
Ezra C. Wood, W. Berk Knighton, Ed C. Fortner, Scott C. Herndon, Timothy B. Onasch, Jonathan P. Franklin, Douglas R. Worsnop, Timothy R. Dallmann, Drew R. Gentner, Allen H. Goldstein, Robert A. Harley
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2015)
Article
Engineering, Environmental
Brian C. McDonald, Allen H. Goldstein, Robert A. Harley
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2015)
Article
Engineering, Environmental
Lucas A. J. Bastien, Brian C. McDonald, Nancy J. Brown, Robert A. Harley
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2015)
Article
Meteorology & Atmospheric Sciences
H. L. Maness, M. E. Thurlow, B. C. McDonald, R. A. Harley
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2015)
Article
Meteorology & Atmospheric Sciences
S. -W. Kim, B. C. McDonald, S. Baidar, S. S. Brown, B. Dube, R. A. Ferrare, G. J. Frost, R. A. Harley, J. S. Holloway, H. -J. Lee, S. A. McKeen, J. A. Neuman, J. B. Nowak, H. Oetjen, I. Ortega, I. B. Pollack, J. M. Roberts, T. B. Ryerson, A. J. Scarino, C. J. Senff, R. Thalman, M. Trainer, R. Volkamer, N. Wagner, R. A. Washenfelder, E. Waxman, C. J. Young
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2016)
Article
Engineering, Chemical
Toshihiro Kuwayama, Jonathan R. Schwartz, Robert A. Harley, Michael J. Kleeman
AEROSOL SCIENCE AND TECHNOLOGY
(2013)
Article
Environmental Sciences
David K. Joe, Hongliang Zhang, Steven P. DeNero, Hsiang-He Lee, Shu-Hua Chen, Brian C. McDonald, Robert A. Harley, Michael J. Kleeman
ATMOSPHERIC ENVIRONMENT
(2014)
Article
Environmental Sciences
Ling Tao, Robert A. Harley
ATMOSPHERIC ENVIRONMENT
(2014)
Article
Engineering, Environmental
David R. Worton, Gabriel Isaacman, Drew R. Gentner, Timothy R. Dallmann, Arthur W. H. Chan, Christopher Ruehl, Thomas W. Kirchstetter, Kevin R. Wilson, Robert A. Harley, Allen H. Goldstein
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2014)
Article
Meteorology & Atmospheric Sciences
Arthur W. H. Chan, Gabriel Isaacman, Kevin R. Wilson, David R. Worton, Christopher R. Ruehl, Theodora Nah, Drew R. Gentner, Timothy R. Dallmann, Thomas W. Kirchstetter, Robert A. Harley, Jessica B. Gilman, William C. Kuster, Joost A. deGouw, John H. Offenberg, Tadeusz E. Kleindienst, Ying H. Lin, Caitlin L. Rubitschun, Jason D. Surratt, Patrick L. Hayes, Jose L. Jimenez, Allen H. Goldstein
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2013)
Article
Meteorology & Atmospheric Sciences
Brian C. McDonald, Zoe C. McBride, Elliot W. Martin, Robert A. Harley
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2014)
Article
Environmental Sciences
T. R. Dallmann, T. B. Onasch, T. W. Kirchstetter, D. R. Worton, E. C. Fortner, S. C. Herndon, E. C. Wood, J. P. Franklin, D. R. Worsnop, A. H. Goldstein, R. A. Harley
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2014)
Article
Environmental Sciences
D. R. Gentner, T. B. Ford, A. Guha, K. Boulanger, J. Brioude, W. M. Angevine, J. A. de Gouw, C. Warneke, J. B. Gilman, T. B. Ryerson, J. Peischl, S. Meinardi, D. R. Blake, E. Atlas, W. A. Lonneman, T. E. Kleindienst, M. R. Beaver, J. M. St Clair, P. O. Wennberg, T. C. VandenBoer, M. Z. Markovic, J. G. Murphy, R. A. Harley, A. H. Goldstein
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2014)