Conversion of a Homogeneous Charge Air-Cooled Engine for Operation on Heavy Fuels

Cordon, Dan; Beyerlein, Steven; Steciak, Judi; Cherry, Mark

doi:10.4271/2008-32-0023

Cited by 7 publications

(6 citation statements)

References 4 publications

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“…При цьому перевірити ту чи іншу цифру, рекомендацію чи припущення про зв'язок результату вимірювання з несправністю, а також скоригувати отримані дані відповідно до своїх умов споживач не може, оскільки не має широко відомих і визнаних моделей та методів розрахункової оцінки. Ті ж моделі, які можна було б використовувати для отримання шуканих закономірностей, або побудовані на спрощених моделях політропних процесів [15] або мають обмеження [16,17], які не дозволяють моделювати процес холодного прокручування без згоряння [18].…”

Section: аналіз публікаційunclassified

Method for expert evaluation of the technical con-dition of the cylinder-piston group of automotive engines after hydrolock

Khrulev,

Saraiev,

Saraieva

2024

VEIT

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Problem: The study examines the thermogasdynamic process within an internal combustion engine cylinder during cold cranking mode while measuring compression. Analysis of various models and comparison of known data revealed unresolved challenges in constructing mathematical models of the engine operating cycle. The vast majority of practical data and recommendations for compression measurement in a cylinder are based on empirical knowledge, numerous experiments, and tests. Consequently, there arises a need for computational models of the compression measurement process and their theoretical justification, particularly in cases where engine damage occurs during hydrolock in a cylinder. Methodology. To address the identified issues, a mathematical model of the thermogasdynamic process within the cylinder during cold cranking while measuring compression was developed. Originality. Unlike existing models, this model describes the processes in the cylinder step by step, considering the real nature of intake-exhaust processes, air leakage through part interfaces, and heat exchange with the walls. Through modeling, the main patterns of compression changes depending on the modes and the nature of damage to associated parts of the valve mechanism and the cylinder-piston group were identified, including deformation of the connecting rod during hydraulic lock due to liquid entering the cylinder. Practical value. Based on the study results, it was concluded that the model's properties make it effectively applicable in diagnosing and monitoring the technical condition of automotive engines during operation.

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Section: аналіз публікаційunclassified

Method for expert evaluation of the technical con-dition of the cylinder-piston group of automotive engines after hydrolock

Khrulev,

Saraiev,

Saraieva

2024

VEIT

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“…These components can be attached to a pipe network to serve as sources or absorbers of pulsating flows. It is an engineering code designed to analyze the dynamics of pressure waves, mass flows, energy losses in ducts, plenums and the manifolds of various systems and machines [12].…”

Section: Wave Simulationmentioning

confidence: 99%

“…The basic operation of the WAVE code analyzes flow networks composed of ducts, junctions and orifices [12]. The method by which Wave produces a simulation of the flow through a duct system is to solve the compressible flow equations governing the conservation of mass, momentum and energy.…”

Section: Wave Simulationmentioning

confidence: 99%

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The Evaluation of Liquefied Petroleum Gas (LPG) Utilization as an Alternative Automobile Fuel in Nigeria

Ukpaukure¹,

Aimikhe²,

Ojapah³

2023

OJEE

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The utilization of liquefied petroleum gas (LPG) as an alternative automobile fuel in Nigeria was studied, focusing on varying different blend ratios of propane and butane as an alternative fuel in a single-cylinder, four-stroke, and spark ignition (SI) engine. Ricardo WAVE, 1-Dimensional engine simulator was used to model the internal combustion engine where the different blend ratios of propane and butane (P100, P90B10, P80B20, P70B30, P60B40 and P50B50) were tested and compared with a gasoline engine operating under same conditions. From the simulation results for the different LPG blends, there was no significant difference in the engine performance and emissions, but when compared with pure gasoline, it was observed that the LPG showed improved engine performance and lower emissions. The engine power output in using the blends was 25% higher compared to using gasoline; CO emission was 50% less, UHC was 20% less while NO x at low speed was significantly lower.

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“…Based on literature, many previous studies on 1D CFD engine simulation come out with different error band for the major engine parameters. For example, Cordon et al [6] mentioned that an engine model can be utilized with an elevated level of certainty to optimize engine parameters if the model can be validated to high degree of accuracy such as 5%. Bayas et al [7] have reviewed about a research work done by Jensen Samuel et al, in their dissertation.…”

Section: Introductionmentioning

confidence: 99%

1-D Engine Modeling of 4-Cylinder Turbocharged Gasoline Engine

Ibrahim,

Soon,

Kim

et al. 2023

JTSE

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This project is conducted to explore one-dimensional (1D) simulation for a 4-cylinder gasoline engine. The simulation and computational development of modeling for the study are conducted by using the commercial Computational Fluid Dynamics (CFD) of AVL BOOST software. The engine model was developed corresponding to a Proton 1.6-litre CamPro 4-cylinder turbocharged gasoline engine including the real engine geometry and parameters. The engine model is based on 1D equation of the gas exchange process, progressive engine combustion process, isentropic compression and expansion, and accounting for the heat transfer as well as the frictional losses. The aim of the study is to predict the steady-state performance of the engine model at full and partload conditions from 1000 to 5000 rpm by using engine cycle simulation. In this study, three parameter tuning works have been performed, which are combustion model tuning, intake manifold temperature tuning and turbocharger’s scaling factor tuning. In addition, the comparison and validation were done for the output performance parameters based on the provided experimental data. Overall, the engine performance behavior have been observed to determine how accurate AVL BOOST software can evaluate engine performance compare to experiment conducted on the real engine. The most accurate validation of the engine performance parameters have been achieved by manifold absolute pressure (MAP) with 3.14% error. However, by comparing with experimental data, major discrepancy is noticeable on several engine performance parameters. From this study, the results showed that the engine model is able to simulate engine’s combustion process and produce reasonable prediction.

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Conversion of a Homogeneous Charge Air-Cooled Engine for Operation on Heavy Fuels

Cited by 7 publications

References 4 publications

Method for expert evaluation of the technical con-dition of the cylinder-piston group of automotive engines after hydrolock

Method for expert evaluation of the technical con-dition of the cylinder-piston group of automotive engines after hydrolock

The Evaluation of Liquefied Petroleum Gas (LPG) Utilization as an Alternative Automobile Fuel in Nigeria

1-D Engine Modeling of 4-Cylinder Turbocharged Gasoline Engine

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