Results 11 to 20 of about 18,809 (307)

A transient numerical study for heat transfer and flow characteristics of dimpled piston cooling gallery of a diesel engine

Case Studies in Thermal Engineering, 2023
Piston cooling gallery is an effective cooling method to achieve an acceptable piston temperature field. This paper aims to analyze the effects of teardrop dimples size and dimple head-and-tail orientation on flow and heat transfer inside the cooling ...
Jinkun Wang, Xiwen Deng, Guangyi Xie, Jilin Lei, Dewen Jia   +4 more
doaj   +1 more source

Timing chain wear investigation methods: Review [PDF]

FME Transactions, 2022
Several methods are used for investigating timing chain wear, from fired engine dynamometer tests through tribological model tests to simulations. Research over the past decade has shown that component or tribometer tests can replace expensive engine ...
Paulovics László, Rohde-Brandenburger Jan, Tóth-Nagy Csaba   +2 more
doaj   +1 more source

Test Conditions of Diesel Engine Particulate Emission and the Results Obtained

Communications, 2001
In this work, based on experimental results, the effect of four factors of particulate emission measurements were taken into account: the method of determining the exhaust dilution in a diluting tunnel, the ratio of exhaust gases dilution, conditioning ...
Jerzy Cisek, Zygmunt Szlachta, Marian Marian Zabłocki   +2 more
doaj   +1 more source

Prediction Model for Transient NOx Emission of Diesel Engine Based on CNN-LSTM Network

Energies, 2023
In order to address the challenge of accurately predicting nitrogen oxide (NOx) emission from diesel engines in transient operation using traditional neural network models, this study proposes a NOx emission forecasting model based on a hybrid neural ...
Qianqiao Shen, Guiyong Wang, Yuhua Wang, Boshun Zeng, Xuan Yu, Shuchao He   +5 more
doaj   +1 more source

Optimization of Miller Cycle, EGR, and VNT on Performance and NOx Emission of a Diesel Engine for Range Extender at High Altitude

Energies, 2022
Due to the increasing sales of extended-range hybrid vehicles and the increasingly stringent emission regulations for light vehicles in China, the performance and emission of diesel engines for range extenders in the plateau region have attracted ...
Weichao Wang, Guiyong Wang, Zhengjiang Wang, Jilin Lei, Junwei Huang, Xuexuan Nie, Lizhong Shen   +6 more
doaj   +1 more source

The influence of the fuel spray structure and dynamics of its formation on surface combustion of biofuels in diesel engines

Transport, 2016
The paper presents the results of the experimental investigation of the structure of the fuel, rapeseed oil and diesel fuel sprays obtained by analysing their optical density.
Sergey P. Kulmankov, Sergejus Lebedevas, Vladimir Sinitsyn, Galina Lebedeva, Sergey S. Kulmankov, Sergey Yakovlev   +5 more
doaj   +1 more source

Research on Fuel Offset Control of High-Pressure Common-Rail Diesel Engine Based on Crankshaft Segment Signals

Sensors, 2022
This paper studies the fuel supply offset of diesel engines based on the crankshaft segment signal. Engine nonuniformity refers to the crankshaft torque fluctuation caused by cylinder-to-cylinder differences caused by misfiring or differences in the fuel
Yuhua Wang, Guiyong Wang, Guozhong Yao, Lizhong Shen   +3 more
doaj   +1 more source

Combustion mechanism study of ammonia/n-dodecane/n-heptane/EHN blended fuel

Applications in Energy and Combustion Science
Due to the challenges of ammonia, such as high ignition energy and slow flame propagation speed, the utilization of ammonia in engines might necessitate the implementation of dual-fuel combustion modes along with the use of cetane improvers.
Tengda Song, Can Wang, Mingsheng Wen, Haifeng Liu, Mingfa Yao   +4 more
doaj   +1 more source

Numerical Investigation and Multi-Objective Optimization of Internal EGR and Post-Injection Strategies on the Combustion, Emission and Performance of a Single Cylinder, Heavy-Duty Diesel Engine

Energies, 2020
This work presents a numerical study that investigates the optimum post-injection strategy and internal exhaust gas recirculation (iEGR) application with intake valve re-opening (2IVO) aiming to optimize the brake specific nitric oxide (bsNO) and brake ...
Volkan Akgül, Orkun Özener, Cihan Büyük, Muammer Özkan   +3 more
doaj   +1 more source

An appraisal of the application of open-cell foams in automotive SCR systems [PDF]

E3S Web of Conferences, 2020
This work aims to investigate the possibility to apply open-cell foams as catalytic substrates in SCR systems for Diesel engines, as a replacement of traditional honeycombs.
Vespertini Andrea, Della Torre Augusto, Montenegro Gianluca, Onorati Angelo, Tronconi Enrico, Nova Isabella   +5 more
doaj   +1 more source