scholarly journals Thermal Analysis of IC Engine

2021 ◽  
pp. 9-16
Author(s):  
Sourabh Kumar ◽  
Mr. Rajesh Soni
Keyword(s):  
Heat Transfer ◽  
Thermal Analysis ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Block Design ◽  
Cylinder Block ◽  
Engine Operation ◽  
Transient Thermal Analysis ◽  
Engine Cylinder ◽  
Transient Thermal

Calculating the heat transfer rate of the engine is very difficult due to the complex geometry design of the engine and the periodic flow of air and fuel during engine operation for full cycles. Various theories hypothesize that about 25% of the energy contained in the fuel is converted into useful work and the remaining 75% is released into the environment by the engine. The main objective of the present work is to improve the heat transfer rate of existing constructions of the engine cylinder block by modifying its construction and also with new materials. To this end, two CAD models were created using CATIA software, then a transient thermal analysis with ANSYS at ambient temperature for the summer season of 45oC for the real one and the proposed internal combustion engine design was performed one after the other. Other to optimize the geometric parameters and improve the heat transfer rate. From the results of the transient thermal analysis, it was found that the proposed engine cylinder block design has better performance and heat transfer rates than the actual engine cylinder block design.

Thermal Analysis of the One-Stage Melting Converter and Related Equipment for Vitrification of High-Level Radioactive Wastes

2002 ◽  
Author(s):  
L. S. Pioro ◽  
I. L. Pioro ◽  
K. E. P’yanykh
Keyword(s):  
Heat Transfer ◽  
Thermal Analysis ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Heat Removal ◽  
Radioactive Wastes ◽  
Two Phase ◽  
Melt Temperature ◽  
One Stage ◽  
High Level

One-stage melting-converter method for the vitrification of high-level radioactive wastes (HLRAW) was developed and investigated. This method includes the concentration (evaporation), calcination, and vitrification of the HLRAW in one-stage process inside a melting converter. Converter consists of a water-cooled conical metal melting chamber. Capacity for the saturated salty solution is 200 l/h and the capacity for the glass-HLRAW mixture is about 100 kg/h. Calculations showed that at a melt temperature of 1150°C, a cooling-water temperature of 20°C and a thickness of the melt lining of 15 mm the heat flux through the walls is about 75 kW/m2 and wall temperature is about 55°C. Thermal analysis showed that at the burner heat transfer rate of 460 kW the heat transfer rate for heating and melting of the charge is 20 kW, the heat transfer rate for evaporation of water from the solution is 100 kW, and the heat losses are 240 kW. Therefore, a thermal efficiency of the converter is about 26%. To keep a melt lining on the vault of converter and around a burner nozzle the special design two-phase closed thermosyphons are used. Design and heat transfer characteristics of these thermosyphons are discussed. Calculations have been made for heat removal of the melted glass and fissionable nuclides poured into the metal containers during first 500 hours.

Heat Transfer Analysis of Motorcycle Engine Cylinder Using CFD under Various Fin Geometries and Speed Condition

2014 ◽  
Vol 592-594 ◽  
pp. 1612-1616
Author(s):  
Amit Ranjan ◽  
D.H. Das
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Combustion Engine ◽  
Heat Transfer Analysis ◽  
Engine Cylinder ◽  
Wind Velocities ◽  
Fluent Software ◽  
Annular Fins ◽  
Better Than

In thisstudy, the heat transfer analysis of internal combustion engine of motorbike is performed with the various fin geometries. Generally rectangular fins are used for motorbike but still this fin geometry could be modified to increase the heat transfer rate.A numerical investigation is carried out for two geometries such as annular and wavy, of finned engine cylinder using CFD and the results are compared. Various experimental methods are presented in literature to see the effect of wind velocity, fin geometry and the ambient temperature on heat transfer rate. In the present paper an effort is made to study the effect of wind velocities and fins geometries on the heat transfer rate and simulation of the heat transfer using CFD. The models are generated in CATIA V5 and simulated in FLUENT software. The results show that the heat transfer rate and effectiveness of the wavy fins is better than for the annular fins.

Heat Transfer Rate Enhancement of an Air Cooled Four Stroke SI Engine by Geometrically Modified Fins-A Review

2018 ◽  
Vol 4 (5) ◽  
pp. 4 ◽  
Author(s):  
Roshan Kumar Nirala ,Pushpendra Kumar Jain2
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Rate ◽  
Dissipation Rate ◽  
Transfer Rate ◽  
Heat Dissipation ◽  
Thermal Stresses ◽  
Working Fluid ◽  
Si Engine ◽  
Engine Cylinder ◽  
Engine Components

The engine cylinder is one of the major I C engine components, which is subjected to high temperature variations and thermal stresses. To cool the cylinder, fins are provided on the surface of the cylinder to increase the rate of heat transfer. By doing thermal analysis on the engine cylinder fins, it is helpful to know the heat dissipation inside the cylinder. The main aim of the paper is to increase the heat dissipation rate by using the invisible working fluid of air. It is observed that, by increasing the surface area the heat dissipation rate increases, further the main purpose of using these cooling fins is to cool the engine cylinder by air. This paper  presents a review to increase heat transfer rate in a four stroke S I engine by using geometrically modified fins

Sign in / Sign up

Export Citation Format

Share Document