This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Evaluation of On-board Heat Loss Prediction Model and Polytropic Index Prediction Model for CI Engines Using Measurements of Combustion Chamber Wall Heat Flux
Technical Paper
2019-32-0543
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Diesel engines need to optimize the fuel injection timing and quantity of each cycle in the transient operation to increase the thermal efficiency and reduce the exhaust gas emissions through the precise combustion control. The heat transfer from the working gas in the combustion chamber to the chamber wall is a crucial factor to predict the gas temperature in the combustion chamber to optimize the timing and quantity of fuel injection. Therefore, the authors developed both the heat loss and the polytropic index prediction models with the low calculation load and high accuracy. In addition, for the calculation of the heat loss and the polytropic index, the wall heat transfer model was also developed, which was derived from the continuity equation and the energy equation. The present study used a single cylinder diesel engine under the condition of engine speed of 1200 and 1500 rpm, and measured the local wall temperature and the local heat flux of the combustion chamber. The measured data were compared with the prediction results of the heat loss and the polytropic index and evaluated the prediction accuracy of those models. The average relative errors for the heat loss and the polytropic index prediction models were evaluated to be 6.6% and 0.3%, respectively.
Recommended Content
Authors
Citation
Ichiyanagi, M., Liu, Z., Chen, H., Asano, K. et al., "Evaluation of On-board Heat Loss Prediction Model and Polytropic Index Prediction Model for CI Engines Using Measurements of Combustion Chamber Wall Heat Flux," SAE Technical Paper 2019-32-0543, 2020, https://doi.org/10.4271/2019-32-0543.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 |
Also In
References
- G.F. Hohenberg Advanced approaches for heat transfer calculations SAE Tech. Papers, No. 790825 1979
- C.D. Rakopoulos , G.M. Kosmadakis , E.G. Pariotis Critical evaluation of current heat transfer models used in CFD in-cylinder engine simulations and establishment of a comprehensive wall-function formulation Appl. Energy 87 5 1612 1630 2010
- T. Suzuki , Y. Oguri , and M. Yoshida Heat transfer in the internal combustion engines SAE Tech. Papers, No. 2000-01-0300 2000
- H. Chen , T. Suzuki , W. Ikoma , Z. Liu , H. Matsui , E. Yilmaz , M. Ichiyanagi Validation of on-board incylinder wall heat transfer model of CI engines using measurements of wall temperature Trans. Soc. Automotive Eng. Jpn. 50 4 1018 1023 2019
- M. Ichiyanagi , H. Matsui , J. Woo , T. Kimura , T. Suzuki Development of on-board model for polytropic index prediction during compression stroke in CI engine Trans. Soc. Automotive Eng. Jpn. 49 2 168 174 2018
- M. Ichiyanagi , H. Joji , H. Matsui , E. Yilmaz , T. Suzuki Development of on-board polytropic index prediction model for injection timing optimization of diesel engines Int. J. Industrial Res. Appl. Eng. 3 2 61 68 2018
- M. Ichiyanagi , K. Kojima , H. Joji , H. Matsui , T. Suzuki Development of on-board in-cylinder gas flow model for heat loss estimation of diesel engines Int. J. Industrial Res. Appl. Eng. 3 2 69 78 2018
- Y. Enomoto , T. Ohya , M. Ishii , K. Enomoto , N. Kitahara Study on analysis of instantaneous heat flux flowing into the combustion chamber wall of an internal combustion engine: Examination in the case of consideration of heat storage term and the temperature dependency of the thermocouple's thermophysical properties JSME Int. J. Series II 35 4 608 615 1992
- H. S. Carslaw , J. C. Jaeger Conduction of heat in solids Clarendon Press Oxford 1959
- M. Ichiyanagi , Y. Sawamura , D. Goto , K. Kojima , H. Matsui , H. Chen , T. Suzuki Validation of on-board in-cylinder gas flow model and wall heat transfer prediction model using PIV measurement in CI engine Trans. Soc. Automotive Eng. Jpn. 50 3 666 672 2019