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1. DR AMBEDKAR INSTITUTE OF TECHNOLOGY
[An Autonomous Institution, Affiliated to VTU, Belgaum and Aided by Government of Karnataka]
Near Janna Bharathi Campus, Mallathahalli, Bangalore-560056
PROJECT WORK PHASE-1 PRESENTATION
STRUCTURAL AND THERMALANALYSIS OF IC ENGINE CYLINDER HEAD
SUBMITTED BY
SHRAVAN A P 1DA20ME086
SRI HARSHA S 1DA20ME095
VISHWAS V G 1DA20ME114
TARUN YADA 1DA21ME461
Under the guidance of
Prof. RAJESH CHANDRA C
ASSISTANT PROFESSOR
Department of Mechanical Engineering, Dr. AIT

2. CONTENTS
1. Abstract
2. Introduction
3. Objectives
4. Literature Survey
5. Methodology
6. Expected outcomes

3. 1.ABSTRACT
Heat transfer is crucial in inside combustion engine investigation, as it directly impacts thermal efficiency. Enhancing heat transfer can
improve inner combustion engine thermal efficiency, especially in air-cooled IC engines. Designing multiplied surfaces and fins is essential
for increased heat transfer, ensuring consistent engine efficiency. Fins are categorized based on heat transfer rate requirements. In internal
combustion engines, the engine block cylinder plays a critical role in housing the piston and facilitating the combustion process. However, the
excessive heat generated during engine operation can lead to thermal stress, reduced efficiency, and potential damage to engine components.
To mitigate these issues, fins are commonly added to the external surface of the cylinder to increase the heat transfer area and enhance
cooling.
This project aims to perform a comprehensive thermal analysis of an engine block cylinder with fins of various thickness and different
materials. The analysis aims to evaluate the thermal performance and optimize the design for efficient heat dissipation, ensuring that the
engine operates within safe temperature limits. The modelling of the cylinder block with fins is done by using CATIA V5. The FEA analysis
is done by using ANSYS Workbench 2023 R1. FEA analysis is done in Steady-State Thermal Analysis which is used to find out the
Temperature distribution and Total heat flux. Three models of Cylinder head with varying fin thickness and gap between fins are analysed.
The analysis is carried out considering three different materials to select the best material and geometry configurations for good heat transfer.

4. 2.INTRODUCTION
 Prime movers are the engines that power automobiles. There are several types of prime movers used in automobiles, including gasoline
engines, diesel engines, and electric motors. In addition to these types of prime movers, there are also hybrid powertrains that combine
gasoline or diesel engines with electric motors.
 The internal combustion engine is an engine in which the burning of fuel occurs in a confinedspace called a combustion chamber. This
exothermic reaction of a fuel with an oxidizer createsgases of high temperature and pressure, which are permitted to expand. A typical,
four-stroke cycle engine consists of an Exhaust camshaft, Intake camshaft, Spark plug, Valves, Piston, Connecting rod, Crankshaft, and
Water jacket for coolant flow.

5.  The cylinder is the main body of an engine in which a piston reciprocates to develop power. Ithas to withstand very high pressure
and temperature (around 2800°C). A cylinder block housesthe engine cylinders. The cylinder material should be such that it should
retainstrength at higher temperatures, should be a good conductor of heat, and should resist rapid wear and tear due to the
reciprocating action of the piston.
 To optimize engine efficiency, it is important to carefully manage the amount of heat generatedin the cylinder. This can be achieved
through careful design of engine components, such as thecombustion chamber and cooling system, as well as through proper engine
tuning andmaintenance.
 Most modern internal combustion engines are cooled by a closed-loop system in which liquid coolant is passed through passages in
the engine block and cylinder head, where the coolant absorbs heat, to a heat exchanger or radiator, where the coolant releases heat
to the air (or to raw water in marine engines). So, although they are not ultimately cooled by the liquid, they are called water-cooled
because of the liquid-coolant cycle.
 The heat generated by an air-cooled engine is dissipated directly into the air (direct- cooled engine). This is usually facilitated by
metal fins on the outside of the cylinder head and cylinders, which increase the surface area that the air can act upon. Air can be
force-fed using a blower and shroud to provide efficient cooling with large volumes of air, or simply by natural airflow with well-
designed and angled fins.

6. Modes of heat transfer
1. Conduction of heat: Conduction is a process where heat transfer takes place from the hotter part of the body to the colder
part without involving any actual movement of the body molecules. Here, the heat transfer occurs from one to another
molecule because of the molecules' vibratory motion. Transfer of heat happens through the process of conduction occurring
in substances that are in direct contact with each other. Generally, it takes place in solids.
2. Convection of heat: This is a process where heat is transferred in both liquid and gases from a region of higher temperature
to that of lower temperature. Convection heat transfer happens partly because of either the actual movement of molecules or
due to the mass transfer. Convection is classified as natural (or free) and forced convection depending on how the fluid
motion is initiated.
3. Radiation of heat: Radiation of heat is the process where heat is transferred from one to another body without involving the
medium molecules. This type of heat transfer does not depend on the medium. The speed of radiation which can be
transmitted from outside at a flat-out temperature T is represented by the Stefan-Boltzmann law

7. 3.OBJECTIVES
• In this present project, we are analyzing the thermal properties of the IC engine cylinder fins in which ANSYS bench is
used for analysis by varying the thickness of fins and by changing the material of the fin. The Objectives of this project
are as follows:
a)To Evaluate Heat Dissipation Efficiency: The primary objective is to assess the heat dissipation efficiency of
the cylinder block with fins
b) To Optimize Cooling System Design: The analysis seeks to optimize the design of the cooling system for the
cylinder block with fins. The objective is to identify the optimal fin geometry that maximizes heat transfer
and minimizes the risk of overheating
c) To Enhance Engine Performance: The thermal analysis aims to improve the overall thermal management of
the IC engine. By efficiently dissipating heat from the cylinder block
d) To Increase Engine Durability: By analyzing the thermal behavior of the cylinder block with fins, the
objective is to enhance the engine's durability.

8. 4.LITERATURE SURVEY
Author Journal Year Results
Shubham Shrivastava et.
al.[1]
Thermal analysis of an IC engine cylinder
block with fins perpendicular to the axis
the of piston movement.
2015-2016
 The parametric model of engine block fins has been developed
in the 3D software solidworks, and thermal analysis is
conducted on the fins and the block to determine temperature
variation in transient and steady states.
Roshan kumar nirala et.
al. [2]
Thermal performance improvement of
single cylinder IC engine
2018
 The rate of heat transfer depends on wind velocity, engine
geometry, external surface area, and ambient temperature and
aluminum alloy is having maximum heat transfer rate.
K. N. Sai sharan et.
al. [3]
Modeling and analysis of IC engine fins
by using different materials
2022
 Four different materials such as aluminium alloy 6061,
aluminium alloy 2024, aluminium alloy 2014, and aluminium
nitride are selected and analyzed to select the best material.
Anubhav tiwari et.
al. [4]
Heat transfer analysis and optimization of
2-wheeler engine cylinder
head fins using FEA
2021
 The results showed that modified model has the maximum heat
transfer rate compared to initial model conditions

9. Author Journal Year Results
Shubham patel et. al. [5]
Thermal analysis of the f engine cylinder
block with fins using FEM
2021
 This study compares the heat exchange between
engine cylinders with rectangular shaped fins and
those with circular-shaped fins using the FEM
software ANSYS modeling is done by using
solidworks using aluminum alloy 1060 and
aluminum alloy 6082.
Masao YOSHIDA et al. [6]
Investigation of the effects of fin number,
fin pitch, and wind velocity air-cool
tingling in motorcycle engines.
2006
 Experimental cylinders with different fins and fin
pitches were tested in a wind tunnel. Results showed
that heat release from the cylinder did not improve
when the cylinder had more fins and to narrow a fin
pitch at lower wind velocities.
Parvindar singh et.al. [7]
Evaluation and implementation of
abrasive machining process
2022
 It reviews existing work conducted in improving the
performance of engines by varying fuel flow and
operating conditions. The study on the optimization of
the intake manifold, fuel injection system, and other
engine cylinder components is also presented.

10. 5.METHODOLOGY

11. • Problem Definition: The literature survey is carried out on the thermal analysis of IC Engine cylinder head fins, by these
literature reviews we arrived at this present project’s problem definition. We are clearly defining the problem that we are
solving, including the physics involved, desired outcomes, and any constraints or specifications.
• Selection of materials: Select the appropriate materials for the fins.
• Creating the 3D model: Creating the 3D geometry of the model using respective design specifications.
• Thermal Analysis in FEM: Importing the 3D model to ANSYS to perform steady-state thermal analysis. This includes
performing the analysis for three different models along with the selection of three different materials. Hence, tabulating
the results which include Temperature distribution, Total heat flux, and Directional heat flux.
• Comparing the Results: Comparing and evaluating the obtained results against the problem objectives and specifications.
• Conclusions: Finally concluding the best material and optimum geometry of fins for efficient heat dissipation.

12. 6.EXPECTED OUTCOME
1. The project aims to provide an optimized design for an internal combustion (IC) engine cylinder head with fins through finite
element analysis (FEA), leading to improved performance and efficiency.
2. By analyzing the thermal behavior of the cylinder head with fins, the project anticipates achieving enhanced heat dissipation,
ultimately contributing to the reduction of engine operating temperatures.
3. to conduct a comprehensive stress and strain analysis on the cylinder head to ensure its structural integrity under various
operating conditions, preventing potential failures and increasing the component's lifespan.
4. the project seeks to recommend suitable materials for the cylinder head construction that balance strength, weight, and thermal
conductivity, contributing to overall durability and reliability.
5. The analysis aims to identify opportunities for weight reduction in the cylinder head without compromising structural integrity,
leading to potential benefits in fuel efficiency and vehicle dynamics.
6. The outcomes of the project are expected to indirectly contribute to environmental sustainability by enhancing engine efficiency
and, consequently, reducing fuel consumption and emissions, aligning with broader goals of energy conservation and
environmental responsibility.

13. THANK YOU