Listar Infraestructura Vial - GINFRAVIAL por autor "IOP Publishing Ltd"

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Acoustic emissions in the valuation of the combustion chamber pressure of an engine

Rojas Suárez, J P; Pabón León, J A; Orjuela Abril1, M S (2021-08-26)

Internal combustion engines demand advanced monitoring methodologies to promote efficient operation; particularly, the combustion pressure plays a central role in the overall performance, which promotes the utilization of ...
Development of a virtual bench for the analysis of the physical processes of internal combustion engines

Rojas Suárez, J P; Pabón León, J A; Orjuela Abril, M S (2021-08-27)

Currently, internal combustion engines face the challenge of reducing fuel consumption and reducing polluting emissions due to their significant impact on the environment. Therefore, it is necessary to use tools that allow ...

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Acoustic emissions in the valuation of the combustion chamber pressure of an engine
...
Rojas Suárez, J P | 2021-08-26

Internal combustion engines demand advanced monitoring methodologies to promote efficient operation; particularly, the combustion pressure plays a central role in the overall performance, which promotes the utilization of transducers that hinders. Therefore, the present study introduces an acoustic emission methodology that serves for indirect combustion pressure measurements. Accordingly, the compound methodology integrates the Hilbert transform and the complex cepstrum using neural networks to accomplish pressure signal reconstruction. Results demonstrated that the proposed methodology featured robust performance while estimating pressure signals as it mitigates the combined noise effect produced by variations in engine speed, engine load, and fuel type. Moreover, the reconstructed signal facilitated the determination of key performance parameters such as peak pressure, pressure timing, and effective mean pressure. Relative error amounted to less than 10%, which ratified the robustness of the indirect pressure measurements. In conclusion, acoustic signal techniques represent an adequate approach to estimate the combustion pressure at variable engine conditions.

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Development of a virtual bench for the analysis of the physical processes of internal combustion engines
...
Rojas Suárez, J P | 2021-08-27

Currently, internal combustion engines face the challenge of reducing fuel consumption and reducing polluting emissions due to their significant impact on the environment. Therefore, it is necessary to use tools that allow us to evaluate the operating characteristics of this type of thermal machines. In the present investigation, the development of a virtual bench was proposed for the analysis of the behavior and performance characteristics of an internal combustion engine for use as a learning tool in higher education students. From the results obtained, it could be demonstrated that the pressure curves of the combustion chamber and the rate of heat release obtained by means of the virtual bench presented a high concordance with the experimental records. The maximum deviation obtained was 5% and 15% for the pressure curve and the heat release rate. Comparing the performance parameters of the brake specific fuel consumption of the engine and energy efficiency, a maximum deviation of 2.96% was shown compared to the real engine. In general, the virtual development bank can describe the behavior of the engine, allowing the characterization of physical phenomena, as well as evaluating the effect of auxiliary technologies such as turbo-compression systems.

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Listar Infraestructura Vial - GINFRAVIAL por autor "IOP Publishing Ltd"

Acoustic emissions in the valuation of the combustion chamber pressure of an engine

Development of a virtual bench for the analysis of the physical processes of internal combustion engines

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Acoustic emissions in the valuation of the combustion chamber pressure of an engine

Development of a virtual bench for the analysis of the physical processes of internal combustion engines

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Listar Infraestructura Vial - GINFRAVIAL por autor "IOP Publishing Ltd"

Acoustic emissions in the valuation of the combustion chamber pressure of an engine ﻿

Development of a virtual bench for the analysis of the physical processes of internal combustion engines ﻿

Envíos recientes

Acoustic emissions in the valuation of the combustion chamber pressure of an engine

Development of a virtual bench for the analysis of the physical processes of internal combustion engines

Portales Institucionales

Acoustic emissions in the valuation of the combustion chamber pressure of an engine

Development of a virtual bench for the analysis of the physical processes of internal combustion engines