Optimization of fuel/air mixing and combustion process in a heavy-duty diesel engine using fuel split device

Hao, Caifeng; Lu, Zhen; Feng, Yizhuo; Bai, Honglin; Wen, Ming; Wang, Tianyou

doi:10.1016/j.applthermaleng.2020.116458

Cited by 11 publications

(3 citation statements)

References 39 publications

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“…Finally, Hao et al (2021) studies and improves the in-cylinder fuel/air mixing process of heavy-duty DEs, utilising a new device named the 'fuel split device'. Due to the nature of their research, detailed modelling of the in-cylinder process was required, which the authors performed utilising CFD methods.…”

Section: Pmsmentioning

confidence: 99%

Physical, data-driven and hybrid approaches to model engine exhaust gas temperatures in operational conditions

Coraddu

Oneto

Cipollini

et al. 2021

Ships and Offshore Structures

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Fast diesel engine models for real-time prediction in dynamic conditions are required to predict engine performance parameters, to identify emerging failures early on and to establish trends in performance reduction. In order to address these issues, two main alternatives exist: one is to exploit the physical knowledge of the problem, the other one is to exploit the historical data produced by the modern automation system. Unfortunately, the first approach often results in hard-to-tune and very computationally demanding models that are not suited for real-time prediction, while the second approach is often not trusted because of its questionable physical grounds. In this paper, the authors propose a novel hybrid model, which combines physical and data-driven models, to model diesel engine exhaust gas temperatures in operational conditions. Thanks to the combination of these two techniques, the authors were able to build a fast, accurate and physically grounded model that bridges the gap between the physical and data driven approaches. In order to support the proposal, the authors will show the performance of the different methods on real-world data collected from the Holland Class Oceangoing Patrol Vessel.

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Section: Pmsmentioning

confidence: 99%

Physical, data-driven and hybrid approaches to model engine exhaust gas temperatures in operational conditions

Coraddu

Oneto

Cipollini

et al. 2021

Ships and Offshore Structures

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“…Near-zero deviation was reported for most parameters, whereas the maximum deviation for NOx emissions was about 2%. Finally, the authors of Hao et al (2021) aimed to improve the incylinder fuel/air mixing process of heavy-duty DEs, which they modelled utilising CFD methods. Their simulations were validated in terms of the spray liquid/vapour penetration, heat release rate, and in-cylinder pressures, at various operational, and environmental conditions, reporting very low discrepancies.…”

Section: Physical Modelsmentioning

confidence: 99%

Physical and Data-Driven Models Hybridisation for Modelling the Dynamic State of a Four-Stroke Marine Diesel Engine

Coraddu

Kalikatzarakis

Theotokatos

et al. 2021

Energy, Environment, and Sustainability

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Accurate, reliable, and computationally inexpensive models of the dynamic state of combustion engines are a fundamental tool to investigate new engine designs, develop optimal control strategies, and monitor their performance. The use of those models would allow to improve the engine cost-efficiency trade-off, operational robustness, and environmental impact. To address this challenge, two state-of-the-art alternatives in literature exist. The first one is to develop high fidelity physical models (e.g., mean value engine, zero-dimensional, and one-dimensional models) exploiting the physical principles that regulate engine behaviour. The second one is to exploit historical data produced by the modern engine control and automation systems or by high-fidelity simulators to feed data-driven models (e.g., shallow and deep machine learning models) able to learn an accurate digital twin of the system without any prior knowledge. The main issues of the former approach are its complexity and the high (in some case prohibitive) computational require-

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“…It has been observed that there are improvements in combustion characteristics and exhaust emissions with Al2O3 nanoparticles added to biodiesel at a rate of 50ppm. Hao et al (2021) proposed a special fuel/air separation device (FSD) to improve combustion, optimization, and reduction of emissions in heavy-duty diesel engines. It has been observed that a better mixture is formed by increasing the air usage amount by dividing the fuel spray by the FSD device.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Using Low Sulfur and Rural Diesel as Diesel Fuel in Tractors on Engine/emissions

Akal¹

2022

IJIAAR

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Energy is one of the main factors that ensure the formation of production, development, and economic conditions between countries. Although fossil fuels pose some problems in terms of the environment and human health, they still have great use in meeting the energy demand in the world. Although there are many studies on alternative fuels in today's conditions, diesel engines are more preferred by the countries in heavy-duty vehicles (construction machines, tractors, and combine harvesters) operating in all kinds of commercial and land conditions that are used in transportation. Diesel engines are more preferred in developing countries due to their high torque and low fuel consumption. For this reason, efficiency, operating parameters, and reducing the environmental emissions of diesel engines used in our country are important. Since agriculture is one of the most important fields of activity in our country, in this study, the engine's characteristics and the effects on the exhaust emissions of the rural diesel used in the tractor and the low-sulfur diesel fuel were experimentally investigated. The maximum torque (1400rpm) used during the field plow of the tractor, which is available in Çerkezköy Hattat Tractor Factory R&D Center, and the maximum power (2100rpm) under other driving conditions were tested with both diesel fuels. When the results of the experiments were compared, it was seen that higher torque and power were obtained with the use of low sulfur diesel fuel, while harmful exhaust emissions were lower than rural diesel fuel. However, when the engine's fuel consumption is compared, it has been determined that rural diesel is consumed less than low sulfur diesel.

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Optimization of fuel/air mixing and combustion process in a heavy-duty diesel engine using fuel split device

Cited by 11 publications

References 39 publications

Physical, data-driven and hybrid approaches to model engine exhaust gas temperatures in operational conditions

Physical, data-driven and hybrid approaches to model engine exhaust gas temperatures in operational conditions

Physical and Data-Driven Models Hybridisation for Modelling the Dynamic State of a Four-Stroke Marine Diesel Engine

Investigation of the Effects of Using Low Sulfur and Rural Diesel as Diesel Fuel in Tractors on Engine/emissions

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