Sachindra Rout - Academia.edu (original) (raw)
Papers by Sachindra Rout
IOP Conference Series: Materials Science and Engineering, 2020
A mathematical simulation was developed using CFD in this study for the nonpremixed combustion of... more A mathematical simulation was developed using CFD in this study for the nonpremixed combustion of two co-axial jets of a mixture consisted of propane, hydrogen, and air. The combustion chamber is represented in a three-dimensional cylindrical shape. The study aimed to evaluate the chemical and thermal properties of the mixture in the burner by adopting the following variables: temperature, axial velocity, and emitted CO. The study aims to identify and reduce carbon monoxide emissions to the environment as it is toxic pollutant. The addition of hydrogen to propane because it is a clean fuel that does not emit carbon monoxide as is the case with propane. In this study, the flame propagation velocity of hydrogen gas was compared to that of propane fuel.
journal of engineering science and technology, 2015
Natural convection inside a two-dimensional rectangular cavity with a triangular roof having an a... more Natural convection inside a two-dimensional rectangular cavity with a triangular roof having an adiabatic solid strip inserted at a middle of the cavity is studied numerically using a finite volume method. Both of the triangular roof and the bottom wall are considered adiabatic while the vertical left side wall is maintained at constant temperature higher than that of inside fluid temperature. The right side wall is considered differentially heated by supplying a constant heat flux. The working fluid is chosen for analysis is air. The Computational Fluid dynamics (CFD) solution commercial package ANSYS FLUENT 14.0 is used for the numerical simulation purpose. The results are presented in the form of isotherms, streamlines, velocity vector and average Nusselt number (Nu) for Rayleigh numbers in the range of 103 to 106.Throughout this study, the aspect ratio is kept equal to 0.5.It is found that the solid adiabatic strip inside the cavity has a significant effect on the flow and therm...
Advances in Air Conditioning and Refrigeration, 2020
Advances in Air Conditioning and Refrigeration, 2020
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2021
Blast furnaces are large and costly devices, and contribute enormous wealth to world economy. A t... more Blast furnaces are large and costly devices, and contribute enormous wealth to world economy. A tiny improvement of furnace performance can translate to huge saving not only in cost of operation but also in air pollution. It presents a numerical solution of the continuity, momentum, and energy equations for a fluid domain surrounding the outer cylindrical surface of a vertical cylinder with the specific longitudinal section using ANSYS FLUENT 18. The main parameters of this study are the dimensionless ratio of cylinder length to the maximum diameter varying between 3.24 and 5.4, the Rayleigh number ranging between 104 and 107, and the cylinder surface temperature ([Formula: see text]) varying between 375 K and 600 K, the ambient temperature being taken as 300 K. These parameters have been varied during the simulation to determine their influence on the free convection characteristics. The study clearly shows that the computed Nusselt number increases with increase of Rayleigh number...
Procedia Engineering, 2012
Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric ... more Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric tube heat exchanger have been presented in this paper. The parametric study has been done using a computational fluid dynamics (CFD) program named FLUENT to estimate the performance of the heat exchanger with different fin shapes, sizes and numbers. The results obtained from the study for a steady and laminar flow of fluid under mixed flow convection heat transfer condition shows that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The wall temperature optimises at a definite fin height beyond which it is insensitive to any height variation. Moreover, amongst the three different shapes considered for fin, results show that wall temperature is least for triangular shaped fins, compared to rectangular and T-shaped fins. In addition to study of thermal characteristics, the pressure drop caused by presence of fins has also been studied.
Advanced Materials Research, 2014
A computational fluid dynamic approach has been utilized to optimize the fin shape inside a circu... more A computational fluid dynamic approach has been utilized to optimize the fin shape inside a circular tube having different shape of fins attached internal circumference of the tube. Total three type shape (rectangular shape, T-Shape, triangular shape) of fins is utilized for this numerical analysis. The tube length is taken 5m and dimeter of 0.07m. For all case volume of fins remains constant factor with Reynolds number 1200 and constant wall heat flux of 200 W/m2. For this analysis a commercial package FLUENT is used. The present paper shows how the fluid temperature, pressure and velocity changes in axial direction for changing the fin shape. Result shows that for triangular fin shape there optimum heat transfer between other configuration of fin.
Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric ... more Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric tube heat exchanger have been presented in this paper. The parametric study has been done using a computational fluid dynamics (CFD) program named FLUENT to estimate the performance of the heat exchanger with different fin shapes, sizes and numbers. The results obtained from the study for a steady and laminar flow of fluid under mixed flow convection heat transfer condition shows that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The wall temperature optimises at a definite fin height beyond which it is insensitive to any height variation. Moreover, amongst the three different shapes considered for fin, results show that wall temperature is least for triangular shaped fins, compared to rectangular and T-shaped fins. In addition to study of thermal characteristics, the pressure drop caused by presence of fins has also been studied.
Wall temperature of an internally finned tube has been computed numerically for different fin num... more Wall temperature of an internally finned tube has been computed numerically for different fin number, height, and shape by solving conservation equations of mass, momentum, and energy using Fluent 12.1 for a steady and laminar flow of fluid inside a tube under mixed flow condition. It has been found that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The fin height has an optimum value beyond which the wall temperature becomes insensitive to fin height. For a horizontal tube, under mixed flow condition, it is seen that the upper surface has higher average temperature than the lower surface. The impact of fin shape on the heat transfer rate shows that wall temperature is least for triangular-shaped fins, compared to rectangular-and T-shaped fins. In addition to the thermal characteristics, the pressure drop caused due to the presence of fins has also been studied.
IOP Conference Series: Materials Science and Engineering, 2020
A mathematical simulation was developed using CFD in this study for the nonpremixed combustion of... more A mathematical simulation was developed using CFD in this study for the nonpremixed combustion of two co-axial jets of a mixture consisted of propane, hydrogen, and air. The combustion chamber is represented in a three-dimensional cylindrical shape. The study aimed to evaluate the chemical and thermal properties of the mixture in the burner by adopting the following variables: temperature, axial velocity, and emitted CO. The study aims to identify and reduce carbon monoxide emissions to the environment as it is toxic pollutant. The addition of hydrogen to propane because it is a clean fuel that does not emit carbon monoxide as is the case with propane. In this study, the flame propagation velocity of hydrogen gas was compared to that of propane fuel.
journal of engineering science and technology, 2015
Natural convection inside a two-dimensional rectangular cavity with a triangular roof having an a... more Natural convection inside a two-dimensional rectangular cavity with a triangular roof having an adiabatic solid strip inserted at a middle of the cavity is studied numerically using a finite volume method. Both of the triangular roof and the bottom wall are considered adiabatic while the vertical left side wall is maintained at constant temperature higher than that of inside fluid temperature. The right side wall is considered differentially heated by supplying a constant heat flux. The working fluid is chosen for analysis is air. The Computational Fluid dynamics (CFD) solution commercial package ANSYS FLUENT 14.0 is used for the numerical simulation purpose. The results are presented in the form of isotherms, streamlines, velocity vector and average Nusselt number (Nu) for Rayleigh numbers in the range of 103 to 106.Throughout this study, the aspect ratio is kept equal to 0.5.It is found that the solid adiabatic strip inside the cavity has a significant effect on the flow and therm...
Advances in Air Conditioning and Refrigeration, 2020
Advances in Air Conditioning and Refrigeration, 2020
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2021
Blast furnaces are large and costly devices, and contribute enormous wealth to world economy. A t... more Blast furnaces are large and costly devices, and contribute enormous wealth to world economy. A tiny improvement of furnace performance can translate to huge saving not only in cost of operation but also in air pollution. It presents a numerical solution of the continuity, momentum, and energy equations for a fluid domain surrounding the outer cylindrical surface of a vertical cylinder with the specific longitudinal section using ANSYS FLUENT 18. The main parameters of this study are the dimensionless ratio of cylinder length to the maximum diameter varying between 3.24 and 5.4, the Rayleigh number ranging between 104 and 107, and the cylinder surface temperature ([Formula: see text]) varying between 375 K and 600 K, the ambient temperature being taken as 300 K. These parameters have been varied during the simulation to determine their influence on the free convection characteristics. The study clearly shows that the computed Nusselt number increases with increase of Rayleigh number...
Procedia Engineering, 2012
Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric ... more Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric tube heat exchanger have been presented in this paper. The parametric study has been done using a computational fluid dynamics (CFD) program named FLUENT to estimate the performance of the heat exchanger with different fin shapes, sizes and numbers. The results obtained from the study for a steady and laminar flow of fluid under mixed flow convection heat transfer condition shows that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The wall temperature optimises at a definite fin height beyond which it is insensitive to any height variation. Moreover, amongst the three different shapes considered for fin, results show that wall temperature is least for triangular shaped fins, compared to rectangular and T-shaped fins. In addition to study of thermal characteristics, the pressure drop caused by presence of fins has also been studied.
Advanced Materials Research, 2014
A computational fluid dynamic approach has been utilized to optimize the fin shape inside a circu... more A computational fluid dynamic approach has been utilized to optimize the fin shape inside a circular tube having different shape of fins attached internal circumference of the tube. Total three type shape (rectangular shape, T-Shape, triangular shape) of fins is utilized for this numerical analysis. The tube length is taken 5m and dimeter of 0.07m. For all case volume of fins remains constant factor with Reynolds number 1200 and constant wall heat flux of 200 W/m2. For this analysis a commercial package FLUENT is used. The present paper shows how the fluid temperature, pressure and velocity changes in axial direction for changing the fin shape. Result shows that for triangular fin shape there optimum heat transfer between other configuration of fin.
Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric ... more Results of a numerical analysis using Finite Volume Method of an internally finned axi-symmetric tube heat exchanger have been presented in this paper. The parametric study has been done using a computational fluid dynamics (CFD) program named FLUENT to estimate the performance of the heat exchanger with different fin shapes, sizes and numbers. The results obtained from the study for a steady and laminar flow of fluid under mixed flow convection heat transfer condition shows that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The wall temperature optimises at a definite fin height beyond which it is insensitive to any height variation. Moreover, amongst the three different shapes considered for fin, results show that wall temperature is least for triangular shaped fins, compared to rectangular and T-shaped fins. In addition to study of thermal characteristics, the pressure drop caused by presence of fins has also been studied.
Wall temperature of an internally finned tube has been computed numerically for different fin num... more Wall temperature of an internally finned tube has been computed numerically for different fin number, height, and shape by solving conservation equations of mass, momentum, and energy using Fluent 12.1 for a steady and laminar flow of fluid inside a tube under mixed flow condition. It has been found that there exists an optimum number for fins to keep the pipe wall temperature at a minimum. The fin height has an optimum value beyond which the wall temperature becomes insensitive to fin height. For a horizontal tube, under mixed flow condition, it is seen that the upper surface has higher average temperature than the lower surface. The impact of fin shape on the heat transfer rate shows that wall temperature is least for triangular-shaped fins, compared to rectangular-and T-shaped fins. In addition to the thermal characteristics, the pressure drop caused due to the presence of fins has also been studied.