Fundamental study on combustion characteristics of direct injection gaseous fuel

Research output: Contribution to journalArticle

Abstract

The development of a more efficient engine is an important agenda in the automotive industry and the shrinking source of fossil fuel drives the search for alternative fuels as a replacement for gasoline in car engines. Some of the problems faced by a direct injection engine used today is heat loss to the walls of the combustion chamber. The objective of the study is to determine the combustion characteristics such as the combustion temperature, enthalpy, total energy and local heat flux which use direct injection for various alternative fuels like methane, propane, hydrogen and compressed natural gas. Variables such as the mass flow rate of air, air temperature, ambient pressure and type of fuel are studied to determine the heat loss which occurs so that this data can be used in future researches that involve more specific applications. This study is done using computer simulations with the aid of computational fluid dynamics software. The model used in this study includes non-premixed combustion, P1 radiation, energy equation and large eddy simulation. The results showed that increasing air temperature leads to an increase in heat flux due to more dominant pre-mixed combustion at higher temperatures. An increase in ambient pressure also causes an increase in the mixture density and this leads to a lower heat flux due to narrower combustion. Different fuels show different combustion characteristics. Hydrogen showed the highest heat flux while methane showed the lowest heat flux. This study is a form of fundamental research which allows the data obtained to be used in the development of high efficiency internal combustion engine.

Original languageEnglish
Pages (from-to)7375-7379
Number of pages5
JournalARPN Journal of Engineering and Applied Sciences
Volume10
Issue number17
Publication statusPublished - 2015

Fingerprint

Direct injection
Heat flux
Alternative fuels
Engines
Heat losses
Methane
Air
Compressed natural gas
Hydrogen
Temperature
Large eddy simulation
Combustion chambers
Internal combustion engines
Fossil fuels
Automotive industry
Propane
Gasoline
Enthalpy
Computational fluid dynamics
Railroad cars

Keywords

  • CFD
  • Combustion characteristics
  • Heat flux
  • Hydrogen
  • Methane

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "Fundamental study on combustion characteristics of direct injection gaseous fuel",
abstract = "The development of a more efficient engine is an important agenda in the automotive industry and the shrinking source of fossil fuel drives the search for alternative fuels as a replacement for gasoline in car engines. Some of the problems faced by a direct injection engine used today is heat loss to the walls of the combustion chamber. The objective of the study is to determine the combustion characteristics such as the combustion temperature, enthalpy, total energy and local heat flux which use direct injection for various alternative fuels like methane, propane, hydrogen and compressed natural gas. Variables such as the mass flow rate of air, air temperature, ambient pressure and type of fuel are studied to determine the heat loss which occurs so that this data can be used in future researches that involve more specific applications. This study is done using computer simulations with the aid of computational fluid dynamics software. The model used in this study includes non-premixed combustion, P1 radiation, energy equation and large eddy simulation. The results showed that increasing air temperature leads to an increase in heat flux due to more dominant pre-mixed combustion at higher temperatures. An increase in ambient pressure also causes an increase in the mixture density and this leads to a lower heat flux due to narrower combustion. Different fuels show different combustion characteristics. Hydrogen showed the highest heat flux while methane showed the lowest heat flux. This study is a form of fundamental research which allows the data obtained to be used in the development of high efficiency internal combustion engine.",
keywords = "CFD, Combustion characteristics, Heat flux, Hydrogen, Methane",
author = "{Abu Mansor}, {Mohd Radzi} and Hyiin, {Tan Chun} and Hafiz, {Nik Muhammad} and {Wan Mahmood}, {Wan Mohd Faizal} and {Wan Ghopa}, {Wan Aizon} and Shahrir Abdullah",
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AU - Hyiin, Tan Chun

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AU - Wan Ghopa, Wan Aizon

AU - Abdullah, Shahrir

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