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Instantaneous in-Cylinder Volume Considering Deformation and Clearance due to Lubricating Film in Reciprocating Internal Combustion Engines

Author

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  • Franklin Consuegra

    (Departamento de Ingeniería Mecánica, Universidad del Norte, Km. 5 Vía Puerto Colombia, Área Metropolitana de Barranquilla 080007, Colombia)

  • Antonio Bula

    (Departamento de Ingeniería Mecánica, Universidad del Norte, Km. 5 Vía Puerto Colombia, Área Metropolitana de Barranquilla 080007, Colombia)

  • Wilson Guillín

    (Departamento de Ingeniería Mecánica, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia, Área Metropolitana de Barranquilla 080007, Colombia)

  • Jonathan Sánchez

    (Departamento de Ingeniería Mecánica, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia, Área Metropolitana de Barranquilla 080007, Colombia)

  • Jorge Duarte Forero

    (Departamento de Ingeniería Mecánica, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia, Área Metropolitana de Barranquilla 080007, Colombia)

Abstract

A new methodology for predicting the real instantaneous in-cylinder volume in the combustion chamber of a reciprocating internal combustion engine is implemented. The mathematical model developed as part of this methodology, takes into consideration the deformations due to pressure and inertial forces, via a deformation constant adjusted through ANSYS ® , using a high-precision CAD model of a SOKAN SK-MDF300 engine. The deformation constant was obtained from the CAD model using the computational tool ANSYS ® and the pressure data was obtained from the engine running at three regimes: 1500, 2500, and 3500 rpm. The results were compared with previous models reported in the literature, showing that the deformation constant obtained has a smaller variation among cycles, which leads to a more precise value of the mechanical deformations. Furthermore, to have a more accurate model of the instantaneous volume variation, a factor taking into consideration the lubricant film behavior is introduced to calculate volumetric variation due to geometrical clearances. The influence of the introduced volumetric variation was evaluated through a process of combustion diagnosis, evidencing the improvement in the predictive capacity of thermodynamic modeling and, therefore, the correct prediction of heat release rate.

Suggested Citation

  • Franklin Consuegra & Antonio Bula & Wilson Guillín & Jonathan Sánchez & Jorge Duarte Forero, 2019. "Instantaneous in-Cylinder Volume Considering Deformation and Clearance due to Lubricating Film in Reciprocating Internal Combustion Engines," Energies, MDPI, vol. 12(8), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:8:p:1437-:d:222738
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    References listed on IDEAS

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    1. Qiang Liu & Zhongchang Liu & Yongqiang Han & Jing Tian & Jun Wang & Jian Fang, 2018. "Experimental Investigation of the Loading Strategy of an Automotive Diesel Engine under Transient Operation Conditions," Energies, MDPI, vol. 11(5), pages 1-15, May.
    2. Giorgio Zamboni, 2018. "A Study on Combustion Parameters in an Automotive Turbocharged Diesel Engine," Energies, MDPI, vol. 11(10), pages 1-21, September.
    3. Duarte, Jorge & Amador, Germán & Garcia, Jesus & Fontalvo, Armando & Vasquez Padilla, Ricardo & Sanjuan, Marco & Gonzalez Quiroga, Arturo, 2014. "Auto-ignition control in turbocharged internal combustion engines operating with gaseous fuels," Energy, Elsevier, vol. 71(C), pages 137-147.
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    1. Meriño Stand, L. & Valencia Ochoa, G. & Duarte Forero, J., 2021. "Energy and exergy assessment of a combined supercritical Brayton cycle-orc hybrid system using solar radiation and coconut shell biomass as energy source," Renewable Energy, Elsevier, vol. 175(C), pages 119-142.

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