A Mathematical Model for the Exhaust Gas Temperature Profile of a Diesel Engine

J. R. Sodré, C. H.G. Brito, C. B. Maia

Research output: Contribution to journalConference article

Abstract

This work presents a heat transfer model for the exhaust gas of a diesel power generator to determine the gas temperature profile in the exhaust pipe. The numerical methodology to solve the mathematical model was developed using a finite difference method approach for energy equation resolution and determination of temperature profiles considering turbulent fluid flow and variable fluid properties. The simulation was carried out for engine operation under loads from 0 kW to 40 kW. The model was compared with results obtained using the multidimensional Ansys CFX software, which was applied to solve the governor equations of turbulent fluid flow. The results for the temperature profiles in the exhaust pipe show a good proximity between the mathematical model developed and the multidimensional software.

Original languageEnglish
Article number012075
JournalJournal of Physics: Conference Series
Volume633
Issue number1
DOIs
Publication statusPublished - 21 Sep 2015
Event4th International Conference on Mathematical Modeling in Physical Sciences, IC-MSquare 2015 - Mykonos, Greece
Duration: 5 Jun 20158 Jun 2015

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exhaust gases
diesel engines
gas temperature
temperature profiles
mathematical models
fluid flow
speed regulators
computer programs
electric generators
engines
proximity
heat transfer
methodology
fluids
simulation
energy

Bibliographical note

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Cite this

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abstract = "This work presents a heat transfer model for the exhaust gas of a diesel power generator to determine the gas temperature profile in the exhaust pipe. The numerical methodology to solve the mathematical model was developed using a finite difference method approach for energy equation resolution and determination of temperature profiles considering turbulent fluid flow and variable fluid properties. The simulation was carried out for engine operation under loads from 0 kW to 40 kW. The model was compared with results obtained using the multidimensional Ansys CFX software, which was applied to solve the governor equations of turbulent fluid flow. The results for the temperature profiles in the exhaust pipe show a good proximity between the mathematical model developed and the multidimensional software.",
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A Mathematical Model for the Exhaust Gas Temperature Profile of a Diesel Engine. / Sodré, J. R.; Brito, C. H.G.; Maia, C. B.

In: Journal of Physics: Conference Series, Vol. 633, No. 1, 012075, 21.09.2015.

Research output: Contribution to journalConference article

TY - JOUR

T1 - A Mathematical Model for the Exhaust Gas Temperature Profile of a Diesel Engine

AU - Sodré, J. R.

AU - Brito, C. H.G.

AU - Maia, C. B.

N1 - Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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AB - This work presents a heat transfer model for the exhaust gas of a diesel power generator to determine the gas temperature profile in the exhaust pipe. The numerical methodology to solve the mathematical model was developed using a finite difference method approach for energy equation resolution and determination of temperature profiles considering turbulent fluid flow and variable fluid properties. The simulation was carried out for engine operation under loads from 0 kW to 40 kW. The model was compared with results obtained using the multidimensional Ansys CFX software, which was applied to solve the governor equations of turbulent fluid flow. The results for the temperature profiles in the exhaust pipe show a good proximity between the mathematical model developed and the multidimensional software.

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