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In recent years, many research on the fin material and geometry are carried out to enhance its application. In many applications, Fins are used to augment the rate of heat transfer from the system and rectangular, triangular and trapezoidal fin configuration were preferred. Fins are the expanded surfaces intentionally supplied in a position from wh...
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... CFD analysis was conducted for four-engine strokes temperatures at compression stroke 867.42 K, expansion stroke 1387.34 K and exhaust stroke 610.212 K, for the fin materials Aluminium for the Rectangular fin geometry (Figs. 3, 5, 7) and the Triangular fin geometry (Figs. 4, 6, 8). The CFD analysis was performed with the following procedure to obtain the ...
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The convection of humid and dry air was studied experimentally. The observed fluid convection involves two mechanisms of heat and mass transfer: thermal convection produced by temperature gradient and concentration convection occurred due to the inhomogeneous vapor distributions induced by evaporation and condensation of water. The convection stabi...
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... In other research, a numerical analysis was performed for the different profiles with the aluminum material [23]. In the paper [22] an analytical approach was used to determine the temperature distribution for different fin lengths and different materials. The heat transfer rates for different fin materials were simulated during steady-state engine operation for each compression stroke separately. ...
Heat transfer modelling and simulation were carried out in a single-cylinder, four-stroke, air-cooled engine to
evaluate the heat transfer rate of the engine block. The modelling studies of cylinders with different numbers of
fins and different geometry were performed using the SolidWorks computer platform. The tested components
were made of 6063-T6 aluminium alloy castings. The simulation concerned different numbers of fins as well as
changing the geometry of fins with circular and rectangular perforations. The results of the studies showed the
possibility of improving the power to mass ratio for cylinder efficiency and heat transfer rate. It was shown that
a large number of fins leads to an increased heat transfer rate, but it affects the overall engine efficiency due to
the increase in the total engine mass. Circular perforation is a better design solution than rectangular
perforated fins with the same cross-section. Circular perforation provides a lower engine cylinder mass and
gives more than 4 % better heat transfer rate. The perforation size was tested using circular perforations with a
diameter of 7.14 mm, 8.5 mm and 10 mm. With a 7.14 mm diameter perforation, the heat transfer rate increases
slightly compared to the other tested ones, while a 10 mm diameter perforation provides the best mass reduction.
Key words: engine cylinder fins, circular and rectangular perforate, heat transfer rate
... In other research, a numerical analysis was performed for the different profiles with the aluminum material [23]. In the paper [22] an analytical approach was used to determine the temperature distribution for different fin lengths and different materials. The heat transfer rates for different fin materials were simulated during steady-state engine operation for each compression stroke separately. ...
Heat transfer modelling and simulation were carried out in a single-cylinder, four-stroke, air-cooled engine to evaluate the heat transfer rate of the engine block. The modelling studies of cylinders with different numbers of fins and different geometry were performed using the SolidWorks computer platform. The tested components were made of 6063-T6 aluminium alloy castings. The simulation concerned different numbers of fins as well as changing the geometry of fins with circular and rectangular perforations. The results of the studies showed the possibility of improving the power to mass ratio for cylinder efficiency and heat transfer rate. It was shown that a large number of fins leads to an increased heat transfer rate, but it affects the overall engine efficiency due to the increase in the total engine mass. Circular perforation is a better design solution than rectangular perforated fins with the same cross-section. Circular perforation provides a lower engine cylinder mass and gives more than 4 % better heat transfer rate. The perforation size was tested using circular perforations with a diameter of 7.14 mm, 8.5 mm and 10 mm. With a 7.14 mm diameter perforation the heat transfer rate increases slightly compared to the other tested ones, while a 10 mm diameter perforation provides the best mass reduction.
... Magnesium alloys, though slightly less conductive than aluminum, offer a good balance between weight and thermal performance, making them suitable for high-performance applications [4]. Grey cast iron, despite its lower thermal conductivity, is favored for its durability and cost-effectiveness in certain applications [7,8]. The use of computational tools like ANSYS for thermal analysis has become increasingly prevalent in recent years. ...
This study explores the thermal performance of engine fins with different geometries through both experimental investigation and computational fluid dynamics (CFD) analysis. Engine fins are essential for managing thermal stresses and temperature variations in automobile engines. By modifying the shapes of these fins, their heat dissipation efficiency can be improved. The experimental research involves testing engine fins made from various materials, including Aluminum Alloy, Grey Cast Iron, and Magnesium Alloy. For instance, Aluminum Alloy fins demonstrated a temperature range of 1436.2℃ to 1500℃ and a total heat flux range of 509.23 W/m² to 7.0404e5 W/m², depending on the fin geometry. Simultaneously, CFD simulations were performed to thoroughly analyze the fluid dynamics and heat transfer characteristics of different fin geometries. The integration of experimental results and CFD simulations provides valuable insights into the thermal efficiency of engine fins, contributing to the expansion of more effective cooling systems for automotive applications.
... Senthilkumar et al. [19] reported triangle fins as the most superior among rectangular and elliptical fins for better heat transfer from small displacement engines. Padmanabhan et al. [20] reported that rectangular fin geometry has a higher heat transfer rate compared to triangular fins boundary conditions were compared with previous research and reported. ...
A major amount of fuel energy is lost in the form of heat is one of the major concern in an internal combustion (IC) engine, which can be avoided by providing the engines with better cooling systems in automobiles. Due to weight constraints, air cooling is the only way to cool the small engine in motorcycles. The fins significantly increases the heat transfer rate, but by changing their parameters, the rate of heat transfer of these fins can be increased even further. The majority of previous research has been done on small displacement engines ranging from 50 cc to 150 cc, and no research work has been reported beyond that. The majority of previous work has been carried out on fin shape and design rather than its thickness and count. These concerns have been addressed in this study, where an analysis of the heat transfer of air-cooled IC engines with a displacement of 373 cc has been taken into consideration. The design modelling of the engine body has been done with different fin thicknesses. In the first phase, computational fluid dynamics (CFD) analysis of the engine body has been done by SOLIDWORKS Flow Simulation. Airstream passing over the engine body has been studied at variable speeds. Thermal analysis of the engine body was carried out by varying the vehicle speed, fin thickness, and materials. Properties like temperature on the fin, temperature on the engine head, and heat loss from the engine were analysed for different vehicle speeds, fin thickness, and materials. Lastly, the results obtained by using those boundary conditions were compared with previous research and reported. It was found that fins with a thickness of 5 mm performed better with Aluminium Alloy as their material as compared to other fin thicknesses and materials. This will help with optimum cooling of the engine, which makes the motorcycle engine perform well and increase its life.
... ysed on ANSYS. A numerical analysis done by Padmanabhan et al. [66] includes the investigation of rectangular and triangular fins with aluminium material. For every stroke of the CI engine, temperature distribution at different lengths and heat transfer were studied. ...
... The efficiency of elliptical fins showed a higher value than that of circular fins. Heat transfer coefficient depends on time, fluid properties, space, and flow conditions.[66] CI Engine S ✔ X Temperature distribution for each engine stroke is calculated analytically, numerically using MATLAB, and then the results are validated by using CFD. ...
Energy crisis and air pollution are the two leading scientific issues that require global attention. The fundamental reason for the rise in energy costs is the rapid depletion of fossil fuels which has raised fuel prices. Analysis of IC engines suggests that thermodynamic constraints cause more than half of energy derived from fossil fuels to be lost to the environment. Prolonged working at high temperatures can alter an engine's performance and characteristics. One way of minimizing these losses is to regulate and keep the engine's temperature within the permissible range. Thus, cylinder blocks often include extended surfaces called fins to transfer away the heat from the engine surface. This study focuses on explaining the effect of variation in material, type, design, number of fins, and other parameters in improving fins' efficiency and enhancing the engine's performance. It has been observed that the optimum number of fins can significantly improve fin efficiency, and a 5% to 13% enhancement in heat transfer is possible through fin extension. Elliptical shape fins perform better than triangular and rectangular fins. However, circular and curved fins increase engine efficiency by reducing engine weight. Amongst various fin materials like Cast Iron, Copper, Magnesium, Aluminum, and its alloys, etc., more thermal flux has been observed for Aluminium Alloy 6082. Finally, authors have come to a conclusion that circular fins with holes and slots offer a higher heat transfer rate and improved engine performance at reduced material requirements. The circular fin geometry with slots and holes provides further scope of improvement by optimizing fin thickness , number of holes and slots, their dimensions and spacing to come with a combination that provides effective cooling along with ease of manufacturing in case of lightweight engines.
... Shareef et al [16] analyzed the thermal property of an IC engine by changing fin geometry, profile of fins and material of engine and found the highest heat flux for angular profiled fin. Padmanabhan et al [17] performed a numerical analysis for the different profile with the aluminium material. Large work was done on studying the effect of air flow velocity and making extended surface structure porous for improving the effectiveness of heat through put from the engine. ...
Design of engine cylinder is always a great concern to deal with temperature variations owing to overheating. Improving heat transfer rate of cylinder using fins are common. Present work deals with increase in heat through put by utilizing air as operational fluid. The objectives of present study are to examine the effect of extended surface geometry on heat through put of engine cylinder and establish an optimum geometry under the ambient conditions using transient thermal analysis. The results were validated with available literature. For having higher thermal conductivity, Al 6061 Alloy (180 W/mK) is taken as the preferred choice for fabricating the extended cooling surface of engine cylinder.
... Shareef et al [19] analysed the thermal property of an IC engine by varying the profile, material of the extended surface and found the highest heat flux for angular profiled fin. Padmanabhan et al [20] compared varying extended surface profile of aluminium. Based on the above literature it can be concluded that still there is no such comparative study which relates both the effect of material and the geometry of extended surface on the effectiveness of engine cylinder. ...
In the case of design of a small two-wheeler, designing a cylinder and its cooling system is a big deal for engineers and researchers. To have a stable combustion in case of SI engine, the temperature at any point of cylinder can’t be raised to auto ignition temperature of the fuel. Thus, the cooling system of engine must be properly designed. When designing cylinder of two-wheeler, the choice is very limited. The fins can be an important technique for engine cooling. This paper presents a comparative study of magnesium alloy and grey cast iron (GCI) alloy as probable cylinder materials and rectangular, triangular and Trapezoidal shape as fin geometry. The solid geometry of cylinder having different types of extended surface was prepared in Solidworks and imported to ANSYS for further processing. The GCI alloy found to be better than magnesium alloy and the rectangular fin profile gave the least total heat flux.
... The provision of the fins on the cylinder head body enables to accelerate the transfer of heat. The acceleration of transfer of heat majorly depends upon the heat transfer area [4][5][6] of the fin. ...
This manuscript focuses on providing optimized transfer rate of heat produced in the fins that are provided on the cylinder head present on the compressor. In this paper three different cross sections are taken in to consideration, which are straight (rectangular), trapezoidal and parabolic cross section. The parabolic cross section stands to be the optimized cross section at level one. Then further rectangular and triangular profiles are analyzed at the tip periphery and at the base of the parabolic fin. Investigation results declare that parabolic fin body having rectangular slot at the base provides the most optimized heat transfer rate in the profile. The last stage optimization is done by providing circular holes at the tip and at the base of the fin geometry. The final results that are laid in the paper depicts that parabolic fin body having rectangular profile cut at the base along with cylindrical profile slots is the most optimized geometry that provides highest heat transfer rate.
... C. Thiagarajan [6] research on Heat transfer analysis and optimization of engine cylinder liner using different materials like cast iron, magnesium alloy and titanium alloy and finds magnesium alloy gives higher thermal flux than another alloy [6]. [7] published paper and finds-Rectangular-shaped fin transfer 10% extra heat transfer than the triangular-shaped fin in all strokes of the test engine in both CFD and analytical methods. Dr. S. C. Kongre [8] finds the perforated fin system enhances heat transfer. ...
The Cylinder block is most important components in IC engine vehicles, which is under very high temperature stresses. To control the engine in efficient way we required to cool the cylinder, extended surface is provided on the cylinder to increase the speed of temperature reducing. By doing thermal analysis on the cylinder block fins, it is helpful to find the heat transfer outside the cylinder. The principle use in this research is to improve the heat dissipation rate by using the surrounding air flow direction and new geometry. We all know that, by expanding the surface area we can improve the heat transfer rate, so designing fin geometry. The main aim of using these cooling fins is to cool the engine cylinder by environmental air. The main aim of the research is to analyze the thermal properties by varying geometry, material and thickness of cylinder fins. Model is created to analyze and simulation purpose in solid works software. The models are created by varying the geometry and shape of fin. Present thickness and shape of the fin is changed. The 3D modelling software used is Solid works. In the current year Material used for manufacturing cylinder block’s fin body is Aluminium Alloy 204 it has thermal conductivity of 110-150W/mk. In this research, it is replaced with aluminium alloy 6061 and analysis is done in Ansys.
... To optimize for optimal heat dissipation and lower material prices, tested a computational analytic of rectangular, triangular and cylindrical heat sinks. Many researchers [9][10][11][12][13][14][15][16] have been studied, compared and tested for different mechanical heat transfer applications with the aid of Finite Element Analyses and Computational Fluid Dynamics. ...
... Fin is designed with 25 mm long, 65 mm width and 3 mm thick for analyzing on the fin. Some of the underlying assumptions are that the uniform cross-component with a steady thermal conductivity is 390 W/mK for copper and 205 W/mK for aluminum [9]. Short fin with the end not separated and just in the x-direction onedimensional thermal conductor. ...
In electric equipment like servers, power generators, transformers and commonly equipped in the cooling of IC engines, fins are typically used for heat controls. Fins have expanded surfaces, which are used by convection mode to increase heat transfer and are used in several industrial and domestic applications. For selecting the geometry of the end, which gives optimum effectiveness and also the economy, it is very important to calculate the temperature distribution over the fin surface. A variety of research is performed on the fin materials and its geometry to strengthen its application. The fins are selected from a rectangular, triangle and trapezoidal fine configuration. Likewise, most of the fins are made of metals such as copper and aluminum. Numerical analysis for rectangular and triangular fin materials such as copper and aluminum is discussed in this study. An empirical method using MATLAB is carried out, and the results were compared with the distribution of the temperature of the fin at the various spatial position and the heat transfer analysis of the fin materials at the entire operations of CI engine.
