Integrated simulation framework for assessing turbocharger fault effects on diesel-engine performance and operability

Autor: Ioannis Roumeliotis, E. G. Pariotis, Yiannis Paraskevopoulos, T. C. Zannis, Konstantinos Ntonas, Nikolaos Aretakis
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Operability
ComputingMethodologies_SIMULATIONANDMODELING
020209 energy
Radial turbine
Energy Engineering and Power Technology
ComputerApplications_COMPUTERSINOTHERSYSTEMS
Model accuracy
02 engineering and technology
Engines
Geological faults
Propulsion
Fault (power engineering)
Diesel engine
GeneralLiterature_MISCELLANEOUS
Automotive engineering
Diesel fuel
0203 mechanical engineering
Seas and oceans
0202 electrical engineering
electronic engineering
information engineering
Waste Management and Disposal
Ships
ComputingMethodologies_COMPUTERGRAPHICS
Civil and Structural Engineering
Renewable Energy
Sustainability and the Environment
Centrifugal compressor
Chemical degradation
020303 mechanical engineering & transports
Petroleum
Nuclear Energy and Engineering
Environmental science
Parameters (statistics)
Turbocharger
Popis: Turbocharged diesel engines are extensively used in marine vessels, both as propulsion engines and as generator sets. The engine’s operation in the hostile marine environment results in performance degradation having a negative effect on the economics of the marine vessel’s operation both in terms of fuel consumption and maintenance. This paper presents a turbocharged four-stroke diesel engine simulation framework based on one-dimensional calculations and analysis. The framework is suitable for turbomachinery and heat exchanger components fault simulation predicting both turbocharger and diesel engine performance and operability. Mean-line models were used in conjunction with the beta lines method for generating accurate and detailed compressor and turbine performance maps, coupled with a single zone closed-cycle diesel engine model for generating engine performance characteristics. The simulation framework modules are adjusted and validated against measured data. Following specific faults are simulated utilizing physical consistent parameters such as blade friction and thickness based on relevant literature data. Overall system simulation and operation analysis is carried out assessing operability and performance parameters. Analysis results show a significant reduction in engine performance, especially in case of both turbo components being fouled (22% power reduction), in contrast with the heat exchanger fouling where the power reduction is about 1%.
Databáze: OpenAIRE
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