Real-Time Performance Simulation of Marine Diesel Engines for the Training of Navy Crews

2004 ◽  
Vol 41 (03) ◽  
pp. 95-101
Author(s):  
P. Chesse ◽  
D. Chalet ◽  
X. Tauzia ◽  
J. F. Hetet ◽  
B. Inozu
Keyword(s):  
Real Time ◽  
Failure Detection ◽  
Marine Diesel Engine ◽  
Simulation Code ◽  
Performance Simulation ◽  
Engine Simulation ◽  
Time Performance ◽  
Laws Of Thermodynamics ◽  
Marine Diesel ◽  
Failure Models

This paper presents a marine diesel engine simulation code designed for real-time performance. The main novelty is that the various equations are derived from the laws of thermodynamics, thus guaranteeing qualitatively accurate predictions and allowing for easy use with any type of engine. The code is based on the "filling and emptying" method with various simplifications to achieve real-time performance. A number of failure models were added to interface the code with a propulsion training application. This was done in order to educate crews on failure detection and the management of emergencies.

Performance Simulation of Marine Diesel Engines with SELENDIA

1999 ◽  
Vol 43 (04) ◽  
pp. 201-217
Author(s):  
P. Chesse ◽  
B. Inozu ◽  
P. Roy ◽  
X. Tauzia ◽  
J. F. Hetet
Keyword(s):  
Diesel Engine ◽  
New Orleans ◽  
Transient Response ◽  
Engine Performance ◽  
Pollutant Emissions ◽  
Simulation Code ◽  
Performance Simulation ◽  
Engine Simulation ◽  
Marine Diesel ◽  
The University

This paper describes a diesel engine simulation code, named SELENDIA, jointly developed by EcoleCentrale de Nantes, France, and the University of New Orleans. The adopted models for steady-state and transient response simulation are briefly introduced in addition to various validation results. The capabilities of the code are illustrated by a study regarding the transient response of a sequentially turbocharged marine diesel engine as well as the simulation of engine performance under extreme conditions and the investigation of engine pollutant emissions.

Real-Time Marine Diesel Engine Simulation for Fault Diagnosis

2002 ◽  
Vol 39 (01) ◽  
pp. 21-28
Author(s):  
Kevin Logan ◽  
Bahadir Inozu ◽  
Philippe Roy ◽  
Jean-Francçois Hetet ◽  
Pascal Chesse ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Real Time ◽  
Learning System ◽  
Cerebellar Model Articulation Controller ◽  
Diagnostic Systems ◽  
Efficient Manner ◽  
Engine Simulation ◽  
Intelligent Software ◽  
Marine Diesel ◽  
Cost Efficient

Automated monitoring systems are now the standard on most large vessels; however, few are equipped with diagnostic systems. This paper presents new developments in the area of fault diagnosis based on intelligent software agents. The research objective was to design an agent capable of continuous real-time machine learning by using an artificial neural network known as the cerebellar model articulation controller (CMAC). An engine simulator that can model both normal and faulty engine operations was used to develop the learning system controller in a flexible and cost-efficient manner. This paper provides a description of the selected CMAC, a brief overview of the real-time engine simulator and its integration with the learning system as well as a few results.

Development of a real-time two-stroke marine diesel engine model with in-cylinder pressure prediction capability

2017 ◽  
Vol 194 ◽  
pp. 55-70 ◽  
Author(s):  
Yuanyuan Tang ◽  
Jundong Zhang ◽  
Huibing Gan ◽  
Baozhu Jia ◽  
Yu Xia
Keyword(s):  
Diesel Engine ◽  
Real Time ◽  
Marine Diesel Engine ◽  
Cylinder Pressure ◽  
Engine Model ◽  
Marine Diesel ◽  
Prediction Capability

Dynamic simulation of a high-performance sequentially turbocharged marine diesel engine

2002 ◽  
Vol 3 (3) ◽  
pp. 115-125 ◽  
Author(s):  
G Benvenuto ◽  
U Campora
Keyword(s):  
Diesel Engine ◽  
Dynamic Simulation ◽  
High Performance ◽  
Marine Diesel Engine ◽  
Simulation Code ◽  
Load Variations ◽  
Transient Behaviour ◽  
Simulation Techniques ◽  
Marine Diesel ◽  
Time Histories

The sequential turbocharging technique is used to improve the performance of highly rated diese engines in particular at part loads. However, the transient behaviour of the sequential turbocharging connection/disconnection phases may be difficult to calibrate and requires an accurate study and development. This may be accomplished, in addition to the necessary experimentation, by means of dynamic simulation techniques. In this paper a model for the dynamic simulation of a sequentially turbocharged diesel engine is presented. A two-zone, non-adiabatic, actual cycle approach is used for the chemical and thermodynamic phenomena simulation in the cylinder. Fluid mass and energy accumulation in the engine volumes are evaluated by means of a filling and emptying method. The simulation of the turbocharger dynamics combines the use of the compressor and turbine maps with a model of the sequential turbocharging connection/disconnection valves and of their governor system. The procedure is applied to the simulation of the Wärtsilä 18V 26X engine, a highly rated, recently developed, sequentially turbocharged marine diesel engine, whose experimental results are used for the steady state and transient validation of the simulation code with particular reference to the sequential turbocharging connection/disconnection phases. The presented results show the time histories of some important variables during typical engine load variations.

The Application of Analytic Hierarchy Process in the Evaluation of Simulation Models of Marine Diesel Engine

2014 ◽  
Vol 525 ◽  
pp. 203-209
Author(s):  
Yuan Qing Wang ◽  
Guang Ren ◽  
Zeng Yan ◽  
Yang Hui Tan
Keyword(s):  
Diesel Engine ◽  
Analytic Hierarchy Process ◽  
Large Scale ◽  
Simulation Models ◽  
Mean Value ◽  
Marine Diesel Engine ◽  
Analytic Hierarchy ◽  
Engine Simulation ◽  
Marine Diesel ◽  
Hierarchy Process

Facing to the problem of hierarchical structure decision analysis which is made of scheme level + factor level + target level, the analytic hierarchy process gives a whole set of solution and process. This method is used to evaluate diesel engine simulation model. Evaluate original mean value model of large-scale low-speed marine diesel engine and the new one by this method. Calculated results prove this method is applicable.

Marine Diesel Engine Simulator for Self-Propulsion Test in Evaluating the Fuel Saving Rate

2015 ◽  
Vol 799-800 ◽  
pp. 870-875
Author(s):  
Sunarsih ◽  
Izzuddin Nur ◽  
Agoes Priyanto
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Diesel Engine ◽  
Real Time ◽  
The Self ◽  
Marine Diesel Engine ◽  
Saving Rate ◽  
Fuel Saving ◽  
Rotating Speed ◽  
Marine Diesel

As the vessel operates in the rough open seas, a marine diesel engine simulator which engine rotation is controlled to transmit through propeller shaft is a new methodology for the self-propulsion tests to track the fuel saving in a real time. Considering the circumstance, this paper presents the real time of marine diesel engine simulator system to track the real performance of a ship through computer-simulated model. A mathematical model of marine diesel engine and the propeller are used in the simulation to estimate fuel rate, engine rotating speed, thrust and torque of the propeller thus achieve the target vessel’s speed. The input and output are real time control system of fuel saving rate and propeller rotating speed representing the marine diesel engine characteristics. The self-propulsion test simulation results in calm water [7] were compared to validate the present marine diesel engine simulator. The present simulator then was used to evaluate the fuel saving by employing a new mathematical model of turbocharged marine diesel engine and was applied to a full scale target vessel. The control system developed will be beneficial for users as to analyze different condition of vessel’s speed to obtain better characteristics and hence optimize the fuel saving rate.

Analysis and characterization of a marine turbocharger’s unstable performance

2017 ◽  
Vol 232 (3) ◽  
pp. 293-306 ◽  
Author(s):  
Nikolaos Alexandros Vrettakos
Keyword(s):  
Operating Mode ◽  
Frequency Domain Analysis ◽  
Intake Manifold ◽  
Simulation Code ◽  
Engine Simulation ◽  
Operating Load ◽  
Code Combination ◽  
Marine Diesel ◽  
Surge Control ◽  
Model Engine

In this article, the results of an extended set of experiments on a turbocharged four-stroke marine diesel engine are presented. By modifying the engine’s intake manifold and injecting compressed air into it, it was possible to raise the pressure downstream of the turbocharger’s compressor and force it into unstable operation. Tests were performed through the entire operating envelope of the engine. Depending on the operating mode of the engine (steady state, transient) and the operating load, it was possible to identify different forms of compressor instability. The equipment used enabled the creation of detailed profiles of engine and turbocharger performance. By applying time- and frequency-domain analysis tools, the measurements were utilized to characterize the extent and form of instability taking place at each operating point of the engine. The results and correlations made along with remarks on the instrumentation used during the experiments can be used to provide quantitative input for surge control–oriented models and the development of control systems for surge avoidance and mitigation. Moreover, they will be used as experimental reference for the validation of a surge model-engine simulation code combination.

Performance Simulation of Sequentially Turbocharged Marine Diesel Engines With Applications to Compressor Surge

2000 ◽  
Vol 122 (4) ◽  
pp. 562-569 ◽  
Author(s):  
Pascal Chesse ◽  
Jean-Franc¸ois Hetet ◽  
Xavier Tauzia ◽  
Philippe Roy ◽  
Bahadir Inozu
Keyword(s):  
Diesel Engines ◽  
Simulated Data ◽  
Special Focus ◽  
Simulation Code ◽  
Performance Simulation ◽  
Charging System ◽  
Compressor Surge ◽  
Marine Diesel ◽  
Inlet Manifold ◽  
Good Agreement

This paper presents the SELENDIA code designed for the simulation of marine diesel engines. Various measured and simulated results are compared for the performance of a sequentially turbocharged marine diesel engine during a switch from one to two turbochargers. The results show a good agreement between measured and simulated data. Surge loops that are experimentally observed in case of an anomaly are analyzed using simulated results. Finally, the predictive capabilities of the simulation code are utilized to investigate the influence of the inlet manifold volume on the engine and air charging system performance with a special focus on compressor surge. [S0742-4795(00)01104-2]

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