A Zero-Dimensional Mixing Controlled Combustion Model for Real Time Performance Simulation of Marine Two-Stroke Diesel Engines

Yongming Feng, Haiyan Wang, Ruifeng Gao and Yuanqing Zhu
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Yongming Feng: College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Haiyan Wang: Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China
Ruifeng Gao: College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Yuanqing Zhu: College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China

Energies, 2019, vol. 12, issue 10, 1-19

Abstract: The paper presents a performance prediction model of marine low-speed two-stroke diesel engines based on an advanced MCC (mixture controlled combustion) model coupled with a fuel injection model. Considering the time of real calculation, the so-called “concentrated exhausting gas” scavenging model and the working process model are used in the present work, and improved by introducing the ratio of pure combustion product over the total gas mass in the cylinder as an expression of the working medium components. The reaction rate model in the zero-dimensional MCC model is improved by introducing the fraction of combustion product in the fuel spray, and the relationship between the combustion model and scavenging quality is established. Meanwhile, the combustion model was simplified in the diffusion combustion phases and integrated with the fuel injection model in order to respond to the change of injection profile and injection timing. A large-scale low-speed marine diesel engine was used for a simulation. The results of the whole model are consistent with experimental data and the speed of calculation is fast enough for real time simulation of low speed and medium speed diesel engines. The prediction model can be used in the design and calibration of the electronic control system and performance optimization of the marine two-stroke diesel engine.

Keywords: marine two-stroke diesel engine; mixing controlled combustion model; real-time modeling; performance simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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