Experimental study on the combustion and no x emission characteristics of DME/LPG blended fuel using counterflow burner

Dongjo Lee; Jae Seong Lee; Ho Young Kim; Chul Kyun Chun; Scott C. James; Sam S. Yoon

doi:10.1080/00102202.2011.622319

Experimental study on the combustion and no x emission characteristics of DME/LPG blended fuel using counterflow burner

Dongjo Lee, Jae Seong Lee, Ho Young Kim, Chul Kyun Chun, Scott C. James, Sam S. Yoon

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Dimethyl ether (DME) continues to be considered as an alternative fuel to conventional hydrocarbon fuels. Specifically, DME has been considered as a substitute fuel for liquefied petroleum gas (LPG) because the physical and chemical characteristics of DME are similar to those of LPG. However, the combustion performance for DME has not yet been established. In this study, the combustion and NOx-emission characteristics of LPG, DME, and an LPG/DME-blended fuel were experimentally investigated in a counterflow nonpremixed flame. The flame structure, flame temperature, NOx concentration, and distribution of OH radicals are reported. In this experimental study, the types of LPG used were butane 100%, butane 80%+propane 20%, and butane 75%+propane 25% by mass with DME mole fraction varied from 0 to 100 mole%. The experimental results indicated that the combustion and NOx emission characteristics of LPG fuels varied with the DME mole fraction. As the DME mole fraction increased, the flame thickness increased, but the flame length decreased. Also, the flame became wider, and its origin moved closer to the oxidizer nozzle with increasing DME mole fraction. In addition, as the DME mole fraction increased, the maximum flame temperature increased due to fast pyrolysis of DME as a result of the high oxygen content (∼35% by mass) in DME. Moreover, NOx concentration decreased with increasing DME mole fraction in all LPGs.

Original language	English
Pages (from-to)	97-113
Number of pages	17
Journal	Combustion Science and Technology
Volume	184
Issue number	1
DOIs	https://doi.org/10.1080/00102202.2011.622319
Publication status	Published - 2012 Jan 1

Bibliographical note

Funding Information:
This research was supported by the Energy & Resource Recycling Project of Korea Institute of Energy Technology Evaluation and Planning. This work was partly supported by a Korea University Grant (2011).

Keywords

Counterflow burner
DME/LPG blended fuel
Distribution of OH radicals
NOx emission
Nonpremixed flame

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

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10.1080/00102202.2011.622319

Cite this

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title = "Experimental study on the combustion and no x emission characteristics of DME/LPG blended fuel using counterflow burner",

abstract = "Dimethyl ether (DME) continues to be considered as an alternative fuel to conventional hydrocarbon fuels. Specifically, DME has been considered as a substitute fuel for liquefied petroleum gas (LPG) because the physical and chemical characteristics of DME are similar to those of LPG. However, the combustion performance for DME has not yet been established. In this study, the combustion and NOx-emission characteristics of LPG, DME, and an LPG/DME-blended fuel were experimentally investigated in a counterflow nonpremixed flame. The flame structure, flame temperature, NOx concentration, and distribution of OH radicals are reported. In this experimental study, the types of LPG used were butane 100%, butane 80%+propane 20%, and butane 75%+propane 25% by mass with DME mole fraction varied from 0 to 100 mole%. The experimental results indicated that the combustion and NOx emission characteristics of LPG fuels varied with the DME mole fraction. As the DME mole fraction increased, the flame thickness increased, but the flame length decreased. Also, the flame became wider, and its origin moved closer to the oxidizer nozzle with increasing DME mole fraction. In addition, as the DME mole fraction increased, the maximum flame temperature increased due to fast pyrolysis of DME as a result of the high oxygen content (∼35% by mass) in DME. Moreover, NOx concentration decreased with increasing DME mole fraction in all LPGs.",

keywords = "Counterflow burner, DME/LPG blended fuel, Distribution of OH radicals, NOx emission, Nonpremixed flame",

author = "Dongjo Lee and Lee, {Jae Seong} and Kim, {Ho Young} and Chun, {Chul Kyun} and James, {Scott C.} and Yoon, {Sam S.}",

note = "Funding Information: This research was supported by the Energy & Resource Recycling Project of Korea Institute of Energy Technology Evaluation and Planning. This work was partly supported by a Korea University Grant (2011).",

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AU - James, Scott C.

AU - Yoon, Sam S.

N1 - Funding Information: This research was supported by the Energy & Resource Recycling Project of Korea Institute of Energy Technology Evaluation and Planning. This work was partly supported by a Korea University Grant (2011).

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N2 - Dimethyl ether (DME) continues to be considered as an alternative fuel to conventional hydrocarbon fuels. Specifically, DME has been considered as a substitute fuel for liquefied petroleum gas (LPG) because the physical and chemical characteristics of DME are similar to those of LPG. However, the combustion performance for DME has not yet been established. In this study, the combustion and NOx-emission characteristics of LPG, DME, and an LPG/DME-blended fuel were experimentally investigated in a counterflow nonpremixed flame. The flame structure, flame temperature, NOx concentration, and distribution of OH radicals are reported. In this experimental study, the types of LPG used were butane 100%, butane 80%+propane 20%, and butane 75%+propane 25% by mass with DME mole fraction varied from 0 to 100 mole%. The experimental results indicated that the combustion and NOx emission characteristics of LPG fuels varied with the DME mole fraction. As the DME mole fraction increased, the flame thickness increased, but the flame length decreased. Also, the flame became wider, and its origin moved closer to the oxidizer nozzle with increasing DME mole fraction. In addition, as the DME mole fraction increased, the maximum flame temperature increased due to fast pyrolysis of DME as a result of the high oxygen content (∼35% by mass) in DME. Moreover, NOx concentration decreased with increasing DME mole fraction in all LPGs.

AB - Dimethyl ether (DME) continues to be considered as an alternative fuel to conventional hydrocarbon fuels. Specifically, DME has been considered as a substitute fuel for liquefied petroleum gas (LPG) because the physical and chemical characteristics of DME are similar to those of LPG. However, the combustion performance for DME has not yet been established. In this study, the combustion and NOx-emission characteristics of LPG, DME, and an LPG/DME-blended fuel were experimentally investigated in a counterflow nonpremixed flame. The flame structure, flame temperature, NOx concentration, and distribution of OH radicals are reported. In this experimental study, the types of LPG used were butane 100%, butane 80%+propane 20%, and butane 75%+propane 25% by mass with DME mole fraction varied from 0 to 100 mole%. The experimental results indicated that the combustion and NOx emission characteristics of LPG fuels varied with the DME mole fraction. As the DME mole fraction increased, the flame thickness increased, but the flame length decreased. Also, the flame became wider, and its origin moved closer to the oxidizer nozzle with increasing DME mole fraction. In addition, as the DME mole fraction increased, the maximum flame temperature increased due to fast pyrolysis of DME as a result of the high oxygen content (∼35% by mass) in DME. Moreover, NOx concentration decreased with increasing DME mole fraction in all LPGs.

KW - Counterflow burner

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Experimental study on the combustion and no x emission characteristics of DME/LPG blended fuel using counterflow burner

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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