Heat transfer enhancement of the air-cooled engine fins through geometrical and material analysis: A review

Sachar, Shivangi; Parvez, Yusuf; Khurana, Tanya; Chaubey, Harsha

doi:10.1016/j.matpr.2023.03.447

Cited by 8 publications

(5 citation statements)

References 52 publications

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“…This is a result of the increase in the size of the second phase precipitates during annealing and aging of the material. Such precipitates, however, increase the cracking resistance of the material, stopping the development of fatigue cracking for some time [17], which can be seen in the SEM photograph shown in Fig. 7.…”

Section: Results Analysismentioning

confidence: 99%

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Possibilities to modify the properties of the AW7075 aluminum alloy for the automotive industry

Jasiński,

Chruścielski

2024

Combustion Engines

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The paper investigated the AW7075 aluminum alloy that is used in the automotive industry. The alloy is widely used, among others, in the production of heads and engine blocks. The possibility of obtaining various properties of the alloy (material states) by appropriate heat treatment (saturation and aging) was demonstrated. The results of strength, hardness, abrasion and fracture toughness tests of the alloy in the T73, RRA and HTPP aging treatments, in comparison with the T651 reference state, are presented. The need to select the appropriate parameters of heat treatment in relation to the load conditions of the structural element, especially in elements with notches, was indicated. Depending on the state of the AW7075 alloy, the results prove the wide and diverse possibilities of its use, and should be used consciously in the design and production processes of modern automotive drivetrain components.

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Section: Results Analysismentioning

confidence: 99%

“…Fig.7. Fatigue crack arrest mechanism by a second phase intermetallic precipitate in AW7075 material[17] …”

mentioning

confidence: 99%

Possibilities to modify the properties of the AW7075 aluminum alloy for the automotive industry

Jasiński,

Chruścielski

2024

Combustion Engines

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“…The design of the fins and the arrangement of the finned surfaces can have a significant impact on the overall cooling performance of the engine, so optimizing these features is a crucial aspect of designing an effective air-cooled engine [2,7,8]. The design and optimization of air-cooled diesel engines is still an important area of research, and advances in this field can lead to improved cooling performance, reduced weight and cost, and enhanced fuel efficiency [9]. The design and optimization of these engines for use in emerging countries in the South are facing new challenges, including the need for reliability and minimal maintenance, as well as the added constraint of operating in a hot climate.…”

Section: Introductionmentioning

confidence: 99%

“…The design and optimization of these engines for use in emerging countries in the South are facing new challenges, including the need for reliability and minimal maintenance, as well as the added constraint of operating in a hot climate. These engines must be designed and optimized to meet these demands while still delivering efficient performance [9][10][11][12]. Authors of [11] conducted an experimental study on the TECHNOLOGY AUDIT AND PRODUCTION RESERVES -№ 6/1(74), 2023…”

Section: Introductionmentioning

confidence: 99%

Establishing thermal balance during the cooling system improvement of an air-cooled engine

Mekroud,

Bidi,

Boukebbab

et al. 2023

TAPR

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The object of research is the air-cooling system, for F4L912 direct injection diesel engine (mounted on the bench), manufactured by the Motor Enterprise (EMO). It is a naturally aspirated inline 4-cylinder engine. Maximum engine power is 49 kW obtained at maximum speed rotation of 2300 rpm. Air cooling is a critical aspect of engine performance, and studying it experimentally can provide valuable insights into the engine's thermal behaviour and efficiency. One of the most problematic places is the high local temperature of the 4th cylinders sleeves. An innovative improvement of the cooling system is proposed. It is based on increasing the cooling air flow. It consists in the installation of new driving pulleys of the blowing turbine with different diameters. The use of these new pulleys allowed moderating the wall temperature of the liner and the cylinder head of the 4th cylinder and the thermal rebalancing of the engine. Significant improvements have been noted in cylinder wall temperature, exhaust gas temperature, and lubricating oil temperature. Drawing up the heat balance enabled us to quantify the useful work, the heat lost in the cooling water, the heat lost through the exhaust gases, the heat carried away by the lubricating oil and other losses (losses not accounted for). It is clear from the results that the high temperature in the engine has indeed been reduced and the cooling performance of the whole engine has been improved. The results show that the increase in airflow produced an improvement in cooling conditions as well as a reduction in exhaust gas temperatures which will have a significant impact on reducing NOx emissions. In future work, it is planned to improve the cooling system of the Emo F4L912 engine, by studying the effects of the geometry, number, and inclination of the turbine blades on the air flow supplied.

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“…A review paper by Bhattad et al [25] examined the hydrothermal performance of heat exchangers used in engine applications, when utilizing mono/hybrid nanofluids. A review study by Sachar et al [26] provide insights of certain alterations in material, type, design, number of fins, and other parameters that can improve the efficiency of fins and further enhance the performance of engines. Rao et al [27] investigated the use of aluminum alloy 6061, A204, and Magnesium alloy for rectangular and circular fins with thicknesses of 2.5 mm and 3 mm.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Enhancement in Cooling Jacket of Liquid Cooled Spark Ignition Engine

et al. 2023

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Thermal stresses due to long running of spark ignition engine often results in wear and tear of cylinder near the top dead center (TDC). These high thermal stresses at TDC arise due to the high temperature gradient during spark ignition. This situation eventually decreases the life and efficiency of an engine. In this study, the numerical and analytical analysis was carried out on 1298 cc in line four stroke spark ignition (SI) engine having a power output of 63 kW to drop the peak temperature at TDC. to reduce the peak value of temperature, square pin fins were used on the surface of engine cylinder wall near TDC. A parametric study is performed to get an optimal solution for removal of the peak temperature load at TDC. The results showed that the fins with dimension of 4 × 4 × 4 mm3 along with uniform spacing of 2 mm provide the optimum solution. It has been observed that the peak temperature at TDC dropped down considerably from 160 °C to 133 °C (a percentage reduction of 16.87%) for the pin fins case as compared to without the fin case. Furthermore, the heat transfer effectiveness for the optimum case was calculated as 3.32, whereas for numerical and analytical study it was calculated as 3.43. The error recorded between both the values was limited to 3.2%.

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Heat transfer enhancement of the air-cooled engine fins through geometrical and material analysis: A review

Cited by 8 publications

References 52 publications

Possibilities to modify the properties of the AW7075 aluminum alloy for the automotive industry

Possibilities to modify the properties of the AW7075 aluminum alloy for the automotive industry

Establishing thermal balance during the cooling system improvement of an air-cooled engine

Heat Transfer Enhancement in Cooling Jacket of Liquid Cooled Spark Ignition Engine

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