Results 131 to 140 of about 1,268 (168)
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The reciprocating motion characteristics of nanofluid inside the piston cooling gallery
Powder Technology, 2015Abstract With the peak cylinder pressure in diesel engines steadily increasing, simply extending or modifying the cooling gallery configuration may be insufficient when power rating is above a certain level. The nanofluid with better heat transfer capacity may become a more appropriate option to improve piston cooling performance.
Minli Bai, Jizu Lv
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Advanced Piston Cooling Efficiency: A Comparison of Different New Gallery Cooling Concepts
SAE Technical Paper Series, 2007<div class="htmlview paragraph">This paper shows results of an experimental study based on a passenger car diesel engine: The piston temperature reduction potential of advanced gallery cooling concepts compared to the standard gallery cooling solution has been investigated.
Norman Thiel +3 more
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A contribution to film coefficient estimation in piston cooling galleries
Experimental Thermal and Fluid Science, 2010The need to reduce fuel consumption and exhaust emissions in internal combustion engines has been drastically increased during last years. One of the most important processes affecting these parameters is heat transfer from the in-cylinder gas to the surrounding walls, as this mechanism has a direct influence on the combustion process.
A.J. Torregrosa +3 more
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The Effects of the Cooling Gallery Position on the Piston Temperature Field and Thermal Stress
Applied Mechanics and Materials, 2010The effects of cooling gallery position on the piston temperature field and thermal stress are studied. A finite element model of 1015 engine piston is developed using Pro/E software and finite element analyses are achieved through ANSYS code. Numerical simulations are performed to find the temperature and thermal stress change rules with regard to the
Wei Zheng Zhang
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SAE International Journal of Engines, 2017
<div class="section abstract"><div class="htmlview paragraph">Oscillating cooling characteristics in piston oil cooling gallery of internal combustion engines were simulated by adopting Coupled Level Set Volume of Fluid method and Arbitrary Lagrangian Eulerian dynamic grid technique.
Nanlin Zhu +3 more
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<div class="section abstract"><div class="htmlview paragraph">Oscillating cooling characteristics in piston oil cooling gallery of internal combustion engines were simulated by adopting Coupled Level Set Volume of Fluid method and Arbitrary Lagrangian Eulerian dynamic grid technique.
Nanlin Zhu +3 more
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EXPLORATION OF OIL FLOW AND HEAT TRANSFER PHENOMENON FOR GALLERY-COOLED DIESEL ENGINE PISTONS
SAE Technical Paper Series, 2023<title>ABSTRACT</title> <p>This paper details the exploration of oil jet piston cooling phenomenon with a focus on heat transfer from the diesel engine piston to the oil. Several numerical methods based on computational fluid dynamics (CFD) and conjugate heat
Arkady Grunin, Vamshi Korivi
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OSCILLATING HEAT TRANSFER PERFORMANCE OF DIFFERENTLY SHAPED COOLING GALLERIES IN AN ENGINE PISTON
Heat Transfer Research, 2019Hairong Zhu
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Experimental Determination of the Heat Transfer Coefficient in Piston Cooling Galleries
SAE Technical Paper Series, 2018<div class="section abstract"><div class="htmlview paragraph">Piston cooling galleries are critical for the pistons’ capability to handle increasing power density while maintaining the same level of durability. However, piston cooling also accounts for a considerable amount of heat rejection and parasitic losses. Knowing the distribution of
Christian Binder +3 more
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Computational modelling of convective heat transfer in a simulated engine cooling gallery
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2007Experimental data from internal combustion (IC) engines suggests that the use of proprietary computational fluid dynamics (CFD) codes for the prediction of coolant-side heat transfer within IC engine coolant jackets often results in underprediction of the convective heat transfer coefficient.
K Robinson +3 more
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Prediction of Temperatures on Pistons with Cooling Gallery in Diesel Engines using CFD Tool
SAE Technical Paper Series, 2003<div class="htmlview paragraph">Thermal loading in pistons of diesel engines installed on commercial vehicles, such as trucks and buses, has been increased dramatically in recent years due to applications of technologies to meet low emission and high power requirements.
Hidehiko Kajiwara +2 more
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