4.4 Article

Thermodynamic analysis on coupling characteristic of Twin-VGT and fuel injection parameters at variable altitudes

Related references

Note: Only part of the references are listed.
Article Engineering, Mechanical

Effect of altitude conditions on combustion and performance of a turbocharged direct-injection diesel engine

Zhentao Liu et al.

Summary: The performance degradation of diesel engines at high altitudes is mainly due to extended ignition delay and reduced gas density inside the cylinder, leading to increased pressure rise rate, shortened engine lifespan, decreased efficiency, increased emissions, and power loss. Additional fundamental investigations are needed to address these issues in plateau regions.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING (2022)

Article Thermodynamics

Thermodynamic cycle characteristics of twin-VGT diesel engine and its control method at variable altitudes

Zhongjie Zhang et al.

Summary: This paper investigates the thermodynamic cycle characteristics of a Twin-VGT diesel engine at variable altitudes and proposes a control method to optimize energy flow. By controlling intake density, fuel injection strategy, and turbocharging pressure distribution, efficient thermodynamic cycles can be achieved.

APPLIED THERMAL ENGINEERING (2022)

Article Thermodynamics

Influence of altitude on matching characteristic of electronic-controlled pneumatic two-stage turbocharging system with diesel engine

Ruilin Liu et al.

Summary: Two-stage turbocharging technology can effectively reduce turbo lag, improve engine performance, and have better matching characteristics at high altitudes, but there is still a certain degree of performance degradation at high altitudes.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY (2021)

Article Energy & Fuels

Optimization of diesel engine dual-variable geometry turbocharger regulated two-stage turbocharging system based on radial basis function neural network-quantum genetic algorithm

Guangmeng Zhou et al.

Summary: By establishing prediction models and optimization methods, this study successfully improved the power and economy performance of the dual-VGT RTST diesel engine in high-altitude environments. The results show that the RBFNN-QGA optimization method can effectively improve the performance of diesel engines and help improve the optimization efficiency of the dual-VGT RTST system.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS (2021)

Article Energy & Fuels

Modeling and optimization of a light-duty diesel engine at high altitude with a support vector machine and a genetic algorithm

Jun Wang et al.

Summary: In this research, a multi-objective optimization was conducted on a light-duty diesel engine in plateau regions, using a support vector machine to establish a surrogate model between calibration parameters and engine performance parameters. The results showed that the SVM regression model had excellent predictive performance and generalization abilities for accurately predicting the various performance parameters of the diesel engine. The proposed multi-objective optimization method achieved a good comprehensive performance for the diesel engine running in the plateau region, with a simultaneous reduction in brake specific NOx emissions and fuel consumption.
Article Energy & Fuels

Experimental investigation of the effects of Miller timing on performance, energy and exergy characteristics of two-stage turbocharged marine diesel engine

Peng Wang et al.

Summary: By adjusting the Miller timing and two-stage turbocharging system, the performance, energy efficiency and emissions of marine diesel engines can be improved. This leads to a reduction in emissions and an increase in overall efficiency within a certain range.
Article Thermodynamics

Effects of injection timing and EGR on combustion and emissions characteristics of the diesel engine fuelled with acetone-butanol-ethanol/diesel blend fuels

Xiongbo Duan et al.

Summary: This study investigated the effects of different ABE ratios and injection timings on the combustion and emissions behaviors of diesel engines fueled with ABE/diesel blended fuel. The results showed that the combustion process of diesel engines fueled with ABE/diesel fuel was strongly affected by injection timing and EGR.

ENERGY (2021)

Article Thermodynamics

Turbocharging strategy among variable geometry turbine, two-stage turbine, and asymmetric two-scroll turbine for energy and emission in diesel engines

Dengting Zhu et al.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY (2020)

Article Energy & Fuels

Analytical Model for Altitude Adaptability of Turbocharged Heavy-Duty Diesel Engine

Yuncheng Gu et al.

JOURNAL OF ENERGY ENGINEERING (2020)

Article Energy & Fuels

Performance Prediction and Optimization of an Organic Rankine Cycle Using Back Propagation Neural Network for Diesel Engine Waste Heat Recovery

Fubin Yang et al.

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME (2019)

Article Thermodynamics

Analysis on altitude adaptability of turbocharging systems for a heavy-duty diesel engine

Mingyang Yang et al.

APPLIED THERMAL ENGINEERING (2018)

Article Engineering, Mechanical

High-Altitude Matching Characteristic of Regulated Two-Stage Turbocharger With Diesel Engine

Ruilin Liu et al.

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME (2017)

Article Engineering, Mechanical

Numerical study of a two-stage turbine characteristic under pulsating flow conditions

Rongchao Zhao et al.

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY (2016)

Article Engineering, Mechanical

Simulations of the diesel engine performance with a two-stage sequential turbocharging system at different altitudes

Xin Shi et al.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING (2014)