One-dimensional completely-prevaporized compound-drops spray flames

Chung Yao Hsuan, Shuhn Shyurng Hou, Ta-Hui Lin

Research output: Contribution to conferencePaper

Abstract

The objective of this study is to investigate the combustion characteristics of completely pre-vaporized compound-drops spray flames using large activation energy asymptotics. Compound-drops are composed of an n-octane shell and a water core, and the premixed flame propagates in a steady, one dimensional flow. The influences of liquid spray loading and core water size on flame intensity, critical radius and shell fuel mass fraction are examined. The internal heat transfer involves both heat losses from water and heat gain from fuel for the lean spray burning. Thus, lean spray flames experience overall internal heat gain or heat loss, depending on the mass fraction of fuel in the compound-drops. While rich spray flames suffer only overall internal heat loss resulting from the gasification processes of both water and fuel.

Original languageEnglish
Publication statusPublished - 2009 Jan 1
Event7th Asia-Pacific Conference on Combustion, ASPACC 2009 - Taipei, Taiwan
Duration: 2009 May 242009 May 27

Conference

Conference7th Asia-Pacific Conference on Combustion, ASPACC 2009
CountryTaiwan
CityTaipei
Period09-05-2409-05-27

Fingerprint

sprayers
flames
Heat losses
Water
heat
water
one dimensional flow
Gasification
heating
gasification
premixed flames
octanes
Activation energy
Heat transfer
heat transfer
activation energy
Liquids
radii
liquids
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)

Cite this

Hsuan, C. Y., Hou, S. S., & Lin, T-H. (2009). One-dimensional completely-prevaporized compound-drops spray flames. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.
Hsuan, Chung Yao ; Hou, Shuhn Shyurng ; Lin, Ta-Hui. / One-dimensional completely-prevaporized compound-drops spray flames. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.
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Hsuan, CY, Hou, SS & Lin, T-H 2009, 'One-dimensional completely-prevaporized compound-drops spray flames', Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan, 09-05-24 - 09-05-27.

One-dimensional completely-prevaporized compound-drops spray flames. / Hsuan, Chung Yao; Hou, Shuhn Shyurng; Lin, Ta-Hui.

2009. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.

Research output: Contribution to conferencePaper

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N2 - The objective of this study is to investigate the combustion characteristics of completely pre-vaporized compound-drops spray flames using large activation energy asymptotics. Compound-drops are composed of an n-octane shell and a water core, and the premixed flame propagates in a steady, one dimensional flow. The influences of liquid spray loading and core water size on flame intensity, critical radius and shell fuel mass fraction are examined. The internal heat transfer involves both heat losses from water and heat gain from fuel for the lean spray burning. Thus, lean spray flames experience overall internal heat gain or heat loss, depending on the mass fraction of fuel in the compound-drops. While rich spray flames suffer only overall internal heat loss resulting from the gasification processes of both water and fuel.

AB - The objective of this study is to investigate the combustion characteristics of completely pre-vaporized compound-drops spray flames using large activation energy asymptotics. Compound-drops are composed of an n-octane shell and a water core, and the premixed flame propagates in a steady, one dimensional flow. The influences of liquid spray loading and core water size on flame intensity, critical radius and shell fuel mass fraction are examined. The internal heat transfer involves both heat losses from water and heat gain from fuel for the lean spray burning. Thus, lean spray flames experience overall internal heat gain or heat loss, depending on the mass fraction of fuel in the compound-drops. While rich spray flames suffer only overall internal heat loss resulting from the gasification processes of both water and fuel.

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Hsuan CY, Hou SS, Lin T-H. One-dimensional completely-prevaporized compound-drops spray flames. 2009. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.