Journal
FUEL
Volume 95, Issue 1, Pages 234-240Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2011.11.057
Keywords
2,5-Dimethylfuran; Iso-octane; Laminar flame speed; Markstein length; Flame instability
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Funding
- National Natural Science Foundation of China [50876085, 51136005]
- Engineering and Physical Sciences Research Council [EP/F061692/1] Funding Source: researchfish
- EPSRC [EP/F061692/1] Funding Source: UKRI
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2,5-Dimethylfuran, known as DMF, is a promising second-generation biofuel candidate. The potential of 2,5-dimethylfuran as an additive in iso-octane (used as gasoline fuel substitute in this study) was studied. Using outwardly spherical flame method and high speed schlieren photography, laminar burning characteristics of 2,5-dimethylfuran/iso-octane (20%/80% vol., designated as D20)/air mixtures were experimentally investigated. Laminar flame speeds and Markstein lengths of D20-air mixtures were empirically organized as a function of initial pressures and temperatures. Onset of cellular structures at the flame front was observed at relatively higher initial pressures due to the combined effect of diffusional-thermal and hydrodynamic instabilities. Laminar flame speeds of D20-air mixtures are higher than those of isooctane-air mixtures when the equivalence ratio is greater than 1.2. (C) 2011 Elsevier Ltd. All rights reserved.
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