CFD Analysis and Optimization of a Diesel Engine Cooling Water Jacket

Qin, Shunshun; Xie, Changjun; Li, Song; Yang, Qi; Chen, Jianwei; Sun, Ke

doi:10.32604/fdmp.2022.017519

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…Salah satu peran penting dari adanya cooling water pada internal combustion engine adalah dapat menjaga suhu pada setiap silinder dan cooling water [32]. Namun, karena ditemukan adanya kebocoran pada jalur cooling water pada data PAP, maka laju korosi dari komponen engine menjadi meningkat lebih cepat.…”

Section: Kebocoran Sistem Pendinginunclassified

High Blow-By Pressure Failure Quantification of Doosan Excavator DX300LCA Using Bayesian Network

Al Banna,

Ramadhani

2023

motivection

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Various types of failure are likely to occur in heavy equipment operating in the mining sector, such as high blow-by pressure. The impact of this failure is a loss of engine power so that the unit cannot be used. This has the potential for work accidents to occur because the unit stops operating in a hazardous area. Therefore, the factors and dependencies that influence the occurrence of high blow by pressure will be discussed using the Fault Tree Analysis method and then the results will be used in the Bayesian Network method to do failure quantification. Meanwhile, the probability of high blow-by pressure occurring has a value of 0.0049 with the main cause being failure to compress the air with a sensitivity value of 80%. These results require companies to focus preventive maintenance activities on the engine combustion chamber to prevent similar things from happening. Beragam jenis kegagalan sangat mungkin terjadi pada alat berat yang beroperasi di sektor tambang, seperti high blow-by pressure. Dampak dari kegagalan ini ialah hilangnya tenaga mesin sehingga unit tidak dapat digunakan. Hal tersebut berpotensi untuk terjadinya kecelakaan kerja karena unit berhenti beroperasi di hazardous area. Maka dari itu, faktor-faktor yang mempengaruhi terjadinya high blow by pressure dan keterkaitannya akan dibahas menggunakan metode Fault Tree Analysis yang kemudian hasilnya akan digunakan pada metode Bayesian Network untuk dilakukan kuantifikasi kegagalan. Adapun, probabilitas terjadinya high blow-by preessure ini memiliki nilai sebesar 0,0049 dengan penyebab utama karena adanya kegagalan dalam mengompresi udara dengan nilai sensitivitas sebesar 80%. Hal tersebut mengharuskan perusahaan untuk memfokuskan kegiatan preventive maintenance pada ruang bakar mesin untuk mencegah hal serupa terjadi.

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Section: Kebocoran Sistem Pendinginunclassified

High Blow-By Pressure Failure Quantification of Doosan Excavator DX300LCA Using Bayesian Network

Al Banna,

Ramadhani

2023

motivection

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“…Naderi et al 27 proposed presenting a smart speed-load sensitive cooling map for better engine thermal management and results showed using the cooling map leads to a significant reduction in coolant flow, which in turn reduces the power consumption of the water pump and size of the radiator. Qin et al 28 investigated the flow inside a cooling water jacket of an in-line six-cylinder diesel engine and gave two structural optimization schemes for improving the velocity uniformity of each cylinder. Bi et al, [29][30] found that the uneven distributions of coolant flow in cooling water jackets of different liner can significantly affect the cylinder liner deformation and highlighted the importance of coolant flow uniformity.…”

Section: Introductionmentioning

confidence: 99%

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

Tan

Yuan

Huang

2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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Reasonable coolant flow distribution and its heat transfer coefficient (HTC) distribution are of great significance to the cooling performance of water-cooled engine. Therefore, the present paper proposes a coolant transport path analysis method aiming at analyzing coolant velocity distribution and optimizing the coolant flow characteristics of water jacket based on Computational Fluid Dynamics (CFD), with particular emphasis on the assessment of coolant flow velocity distributions of high-temperature area of engine head water jacket. First, the coolant flow characteristics of a single-cylinder water jacket is investigated and it is found that coolant velocity of exhaust bridge is less than 1.5 m/s and the HTC distribution of water jacket under three flow conditions of 15 L/min, 25 L/min and 35 L/min have a small area reaching 5000 W/(m2∙K). Some areas have no coolant flow and the mass flowrate distribution of each gasket hole is unreasonable, proving that original water jacket structure has some shortcomings and need to be optimized. Based on coolant transport analysis, an improved design of the single cylinder water jacket is proposed and HTC distribution of improved water jacket meet cooling requirements that HTC in high heat load area are above 5000 W/(m2∙K). The coolant transport path analysis method for optimizing coolant flow characteristics of water jacket proves to be an effective way through successful application and remarkable achievement in the other single-cylinder water jacket and two-cylinder water jacket that coolant flow distribution become more reasonable and coolant velocity of high-temperature areas are bigger than 1.5 m/s.

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Multiobjective optimization of an ionizer nozzle structure based on RSM and CFD

Zhang,

Li,

et al. 2024

Struct Multidisc Optim

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CFD Analysis and Optimization of a Diesel Engine Cooling Water Jacket

Cited by 4 publications

References 14 publications

High Blow-By Pressure Failure Quantification of Doosan Excavator DX300LCA Using Bayesian Network

High Blow-By Pressure Failure Quantification of Doosan Excavator DX300LCA Using Bayesian Network

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

Multiobjective optimization of an ionizer nozzle structure based on RSM and CFD

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