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, Suk Goo Yoon

Research output: Contribution to journalArticle

5 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 languageEnglish
Pages (from-to)97-113
Number of pages17
JournalCombustion Science and Technology
Volume184
Issue number1
DOIs
Publication statusPublished - 2012 Jan 1

Fingerprint

counterflow
Gas fuels
Liquefied petroleum gas
burners
crude oil
Fuel burners
Ethers
ethers
gases
flames
Butane
butanes
Propane
flame temperature
dimethyl ether
propane
Penicillin G Benzathine
hydrocarbon fuels
oxidizers
Alternative fuels

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemistry(all)

Cite this

Experimental study on the combustion and no x emission characteristics of DME/LPG blended fuel using counterflow burner. / Lee, Dongjo; Lee, Jae Seong; Kim, Ho Young; Chun, Chul Kyun; James, Scott C.; Yoon, Suk Goo.

In: Combustion Science and Technology, Vol. 184, No. 1, 01.01.2012, p. 97-113.

Research output: Contribution to journalArticle

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