Contribución al conocimiento del comportamiento térmico y la gestión térmica de los motores de combustión interna alternativos.

Piedrahita, Carlos Alberto Romero; Alberto, Carlos

doi:10.4995/thesis/10251/4923

Cited by 8 publications

(12 citation statements)

References 0 publications

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“…Internal combustion engine heat transfer modeling has been the subject of earlier review papers [4,25] and were deeply discussed in PhD thesis [26].…”

Section: Ice Heat Transfer and Wall Temperature Modelingmentioning

confidence: 99%

“…1 Combination of different heat transfer approaches for wall heat transfer and temperature estimation/calculation. [26] those are the most commonly used in commercial software for apparent heat release calculation. The results for instantaneous heat flux show considerable difference between the values calculated by heat transfer correlations and the values calculated based on the data measured by thin film gauges.…”

Section: In Cylinder Heat Transfer Modellingmentioning

confidence: 99%

“…Borman and Nishiwaki didn't mentioned any of those models. Other authors have published reviews about internal combustion engine heat transfer, like Finol and Robinson [25] and Romero, in his PhD thesis [26], but neither have mentioned this engine heat transfer modelling approach. So, this is the first time this approach is reviewed.…”

Section: Wall To Wall Heat Transfermentioning

confidence: 99%

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Internal Combustion Engine Heat Transfer and Wall Temperature Modeling: An Overview

Fonseca

Olmeda

Novella

et al. 2019

Arch Computat Methods Eng

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Internal combustion engines are now extremely optimized, in such ways improving their performance is a costly task. Traditional engine improvement by experimental means is aided by engine thermodynamic models, reducing experimental and total project costs. For those models, accuracy is mandatory in order to offer good prediction of engine performance. Modelling of the heat transfer and wall temperature is an important task concerning the accuracy and the predictions of any engine thermodynamic model, although it is many times an overcome task. In order to perform good prediction of engine heat transfer and wall temperature, models are required for accomplish heat transfer from hot gases to engine parts, heat transfer inside each engine part, and also heat transfer to coolant and lubricating oil. This paper presents an overview about engine heat transfer and wall temperature modelling, with main purpose to aid engine thermodynamic modelling and offer more accurate predictions of engine performance, consumption and emission parameters. The most important correlation are reviewed for three engine heat transfer approaches: gas to wall, wall to wall and wall to liquid heat transfer models. In order to obtain good prediction of wall temperature, those three approaches must be coupled, which may imply convection-conduction-convection problems, although for some applications in diesel engines, radiation problems must be considered.

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“…Internal combustion engine heat transfer modeling has been the subject of earlier review papers [4,25] and were deeply discussed in PhD thesis [26].…”

Section: Ice Heat Transfer and Wall Temperature Modelingmentioning

confidence: 99%

Section: In Cylinder Heat Transfer Modellingmentioning

confidence: 99%

Section: Wall To Wall Heat Transfermentioning

confidence: 99%

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Internal Combustion Engine Heat Transfer and Wall Temperature Modeling: An Overview

Fonseca

Olmeda

Novella

et al. 2019

Arch Computat Methods Eng

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“…La Figura 2, muestra que las paredes de la cámara de combustión constituyen fronteras del sistema. Aplicando la Primera Ley de la Termodinámica, la Ecuación 1 que acompaña a la Figura 2, equivale a decir que "la variación de la energía del sistema (Esis), asumiendo que no hay pérdidas de energía en deformaciones del volumen de control, se reduce a la variación de la energía interna del sistema (U)" (Piedrahita, 2009).…”

Section: Metodologíaunclassified

Evaluación energética y exergética en un motor de combustión interna ciclo Otto de 1.6L

Cedeño¹,

Carguachi-Caizatoa²,

Rocha-Hoyos³

2018

Enfoque UTE

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El presente trabajo tuvo como objetivo: Evaluar el comportamiento de un motor de combustión interna mediante el balance energético y exergético para la valorización de su desempeño, considerando como caso de estudio a un motor de vehículo Mazda 3 – 1.6; el cálculo energético se desarrolló en ruta previamente caracterizada a velocidad constate de 50 km/h y 90 km/h. Tras una investigación de tipo experimental, con base en observación y medición, además de métodos de inducción, deducción y síntesis, se determinó, dentro de las principales conclusiones, que el análisis del balance energético y exergético aporta a generar ideas para la optimización y un uso más eficiente de hidrocarburos; se determinó, además, que el motor estudiado presenta un rendimiento energético promedio de 27.57 % para una velocidad de 50 km/h, mientras que el flujo de exergía total del sistema es 22 %, no existiendo diferencia significativa con los resultados de eficiencia a 90 km/h.

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“…Thermal management of the vehicle engine is essential so that the vehicle operation is more efficient and sustainable [1]. The evolution of cooling radiators design allows us to improve and maximize the efficiency of the cooling of the engine, and consequently, the performance [2].…”

Section: Introductionmentioning

confidence: 99%

Critical Review of the Theoretical, Experimental and Computational Fluid Dynamics Methods for Designing Plate Fin Heat Exchangers

Libreros¹,

Mercado²,

Ochoa³

et al. 2019

JESTR

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This paper presents a detailed review of the research carried out for the design of flat fin heat exchangers is using theoretical, experimental, and computational fluid dynamics (CFD) methods. The scope and limitations of several studies are presented, as well as the critical point of view of the authors in the selection of optimal methods in the thermo-hydraulic design of each equipment. Fin heat exchangers optimization is done using different approaches. The theoretical model assumes considerations that do not fully replicate the phenomenon, the experimental method provides real parameters for the design and implies high costs, and finally, computational fluid dynamics predicts the behaviors of thermal and hydraulic machine flows, in addition to recreating the phenomena almost exactly and complement the theoretical and experimental methods. With this review, it can be verified that the methods complement each other, thus achieving greater profitability at the industrial level, greater robustness in the design, and facilitating the study of behavior from a thermo-hydraulic approach.

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Contribución al conocimiento del comportamiento térmico y la gestión térmica de los motores de combustión interna alternativos.

Cited by 8 publications

References 0 publications

Internal Combustion Engine Heat Transfer and Wall Temperature Modeling: An Overview

Internal Combustion Engine Heat Transfer and Wall Temperature Modeling: An Overview

Evaluación energética y exergética en un motor de combustión interna ciclo Otto de 1.6L

Critical Review of the Theoretical, Experimental and Computational Fluid Dynamics Methods for Designing Plate Fin Heat Exchangers

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