Vibration analysis to estimate turbocharger speed fluctuation in diesel engines

Chiavola, Ornella; Palmieri, Fulvio; Recco, Erasmo

doi:10.1016/j.egypro.2018.08.107

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…At higher loads, the conversion of heat energy to mechanical work increases with the rise in combustion temperature and tends to balance engine torque that leads to a decrease in engine block vibrations with respect to the load. 51,53,54 The bioethanol–diesel blends produce more vibration than diesel which is mainly due to water molecules association in bioethanol–diesel blend. The water content of the blends reduced the efficiency and temperature of cylinder wall.…”

Section: Resultsmentioning

confidence: 99%

“…The reason for decreased knocking is the increase of air pressure and temperature and auto ignition temperature of the fuel reduces at higher CR. 52–54 Experimentally, at lower CR, lowest engine block vibration was found to be 0.0294596 m/s 2 and 0.0305962 m/s 2 for WBED 5 and WBED 10, respectively, whereas it was 0.0321953 m/s 2 , 0.0349923 m/s 2 and 0.0344186 m/s 2 in case of WBED 15, WBED 20, and WBED 25, respectively, at 6 Nm load, 14 compression ratio and 225 bar FIP condition. In same condition, as compared to diesel fuel, engine block vibration increases by 0.000066 m/s 2 , 0.0012026 m/s 2 , 0.0028017 m/s 2 , 0.0055987 m/s 2 , and 0.005025 m/s 2 for WBED 5, WBED 10, WBED 15, WBED 20, and WBED 25, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The fuel spray break-up is caused by the aerodynamic interaction with the gas inside the chamber, whose relative motion contributes to amplify unstable waves on the spray surface. 39,54–56 Experimentally at lower fuel injection ratio, lowest engine block vibration was found to be 0.0251178 m/s 2 and 0.0257835 m/s 2 for WBED 5 and WBED 10, respectively, whereas it was 0.0276133 m/s 2 , 0.0294561 m/s 2 and 0.0305029 m/s 2 in case of WBED 15, WBED 20, and WBED 25, respectively, at 6 Nm load, 16 Compression ratio and 180 bar FIP condition. In same condition, as compared to diesel fuel, engine block vibration increases by 0.000202 m/s 2 , 0.0008677 m/s 2 , 0.0026975 m/s 2 , 0.0045403 m/s 2 , and 0.0055871 m/s 2 for WBED 5, WBED 10, WBED 15, WBED 20, and WBED 25, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Optimization and prediction of engine block vibration using micro-electro-mechanical systems capacitive accelerometer, fueled with diesel-bioethanol (water-hyacinth) blends by response surface methodology and artificial neural network

Choudhary

Chelladurai

Panchal³

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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The current investigation is focused on the vibration signals analysis for health status diagnosis of the single-cylinder diesel engine fueled with bioethanol diesel mixture. The water hyacinth (WH) plants (Eichhornia crassipes) are used as raw materials for bioethanol production. The bio-ethanol obtained from WH has been mixed with diesel fuel (WBED) to various extent. Systematically designed experiments were conducted with different working parameters like load, fuel injection pressure (FIP), and compression ratio (CR) in a diesel engine. The Micro-Electro-Mechanical Systems (MEMS) capacitive accelerometer was used to get vibration signals from the engine while operating with blended fuels. The obtained experimental vibrations data have been used to predict the engine vibration by using Response Surface Methodology (RSM) technique and Artificial Neural Network (ANN). The experimental results have been compared with RSM and ANN prediction results. From results, it is elicited that the acceleration declines with the increase in load and CR. At all tested blends, FIP produces a significant effect on the engine block vibration. Among all blends, WBED 5 and WBED 10 produce less vibration as compared to other diesel bioethanol blends. At optimized operating condition the engine block vibration for WBED 5; the experimental acceleration is 0.016962 m/s2 and the predicted acceleration by RSM and ANN is 0.016182 m/s2 and 0.0166 m/s2, respectively. For WBED 10, the acceleration is 0.0172604 m/s2 and the predicted acceleration by RSM and ANN 0.016207 m/s2 0.017 m/s2, respectively, has been found.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Optimization and prediction of engine block vibration using micro-electro-mechanical systems capacitive accelerometer, fueled with diesel-bioethanol (water-hyacinth) blends by response surface methodology and artificial neural network

Choudhary

Chelladurai

Panchal³

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Before starting the tests, the engine is operated at idling speed (600 rpm) until the engine reaches nominally stable conditions (engine coolant reached ideal operating temperature) [7]. After the engine is reached its operating temperature, it is stopped and the drive wheels are lifted up in order to keep the vehicle at a constant speed.…”

Section: Fig 1 Schematic View Of the Experimental Test Setupmentioning

confidence: 99%

Atmospheric and Turbocharged Experimental Investigation of Heavy Vehicle Compressor Air Inlet Line

Kula¹,

Ciniviz

2020

International Journal of Automotive Science and Technology

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Reciprocating compressors, which come from the past to the present and whose development is parallel to internal combustion engine technolo-gies, find themselves a large share in this field in line with the innovative studies on it. The stored compressed air demanded in the heavy vehicle segment, where almost all diesel engines are used, is serviced for two main tasks such as brake and suspension system. Therefore, the engine to be used during the compressor selection; efficiency, performance and service maintenance period are very important while meeting the de-mands and what applications are used such as long-distance vehicle, construction site vehicle, transport vehicle, garbage truck, coach.In this paper, experimental studies were carried out on a Scania brand diesel vehicle by feeding the air brake compressor from the engine tur-bocharger intercooler with an improved interconnection and convention-al atmospheric feeding. Temperature and pressure values obtained via sensors from the data collection system, performance information ob-tained from the vehicle CAN module and exhaust emission measurement results measured by opacimeter for both cases are presented.

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A Review on the Rotor Dynamics of Automotive Turbochargers

Peixoto

Cavalca

2022

Mechanisms and Machine Science

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Vibration analysis to estimate turbocharger speed fluctuation in diesel engines

Cited by 5 publications

References 5 publications

Optimization and prediction of engine block vibration using micro-electro-mechanical systems capacitive accelerometer, fueled with diesel-bioethanol (water-hyacinth) blends by response surface methodology and artificial neural network

Optimization and prediction of engine block vibration using micro-electro-mechanical systems capacitive accelerometer, fueled with diesel-bioethanol (water-hyacinth) blends by response surface methodology and artificial neural network

Atmospheric and Turbocharged Experimental Investigation of Heavy Vehicle Compressor Air Inlet Line

A Review on the Rotor Dynamics of Automotive Turbochargers

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