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Publications
Mocerino, L., Guedes Soares, C., Rizzuto, E., Balsamo, F. and Quaranta, F. (2021), “Validation of a Model of Emissions for a Marine Diesel Engine with data from sea operation”, Journal of Marine Science and Application, Vol. 20, pp. 534-545.
A model is developed to simulate the dynamics of an internal combustion engine and it is calibrated and validated against reliable experimental data, making it a tool that can effectively be adopted to conduct emission predictions.
In this work, the RICARDO Wave software is applied to the simulation of a particular marine diesel engine, a 4-stroke engine used in the maritime field. Results from the bench tests are used for the calibration of the model. The calibration of the model and finally its validation with full-scale data measured at sea are presented.
The prediction includes not only the classic engine operating parameters for comparison with surveys but also an estimate of Nitrogen oxides emissions that are compared with similar results obtained with emission factors. The calibration of the model made it possible to obtain an overlap between simulation results and real data with an average error of about 7% on power, torque, and consumption.
The model provides encouraging results suggesting further applications, such as the adoption for the study of transient conditions, the coupling of the engine model with the ship model for a complete simulation of the operating conditions and the use of the model optimization studies of consumption and emissions. The availability of emissions data during sea trials tests bench, and validated simulation results are the strengths and novelties of this work.
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