Volume 32 Issue 11
Nov.  2017
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Comparative study on the effects of hydrogen and hydrogen peroxide additions on combustion characteristics of n-decane/air mixtures[J]. Journal of Aerospace Power, 2017, 32(11): 2596-2603. doi: 10.13224/j.cnki.jasp.2017.11.005
Citation: Comparative study on the effects of hydrogen and hydrogen peroxide additions on combustion characteristics of n-decane/air mixtures[J]. Journal of Aerospace Power, 2017, 32(11): 2596-2603. doi: 10.13224/j.cnki.jasp.2017.11.005

Comparative study on the effects of hydrogen and hydrogen peroxide additions on combustion characteristics of n-decane/air mixtures

doi: 10.13224/j.cnki.jasp.2017.11.005
  • Received Date: 2017-04-25
  • Publish Date: 2017-11-28
  • Hydrogen (H2) and hydrogen peroxide (H2O2) are useful promoters of hydrocarbons combustion due to their high reactivity. To explore the effects of liquid hydrogen and liquid hydrogen peroxide additions on combustion characteristics of jet fuel, a comparative computational study was conducted with ndecane as a single component surrogate for the practical jet fuel. It was founded that H2O2 addition can significantly shorten the ignition delay times of fuel/air mixtures at all condition considered, while H2 addition had negligible effect on the ignition delay times at low temperature around 1100K compared with the notable effect at high temperature around 1600K. The H2O2 addition showed a more significant effect on increasing the laminar flame speeds than H2 addition. The H2O2 and H2 additions slightly reduced the emission index of CO (EICO), but increased the emission index of NO (EINO). EICO and EINO did not vary much with H2 and H2O2 addition levels at fuel lean and low pressure conditions. For rich fuel and high pressure conditions EICO decreased and EINO increased with increasing H2O2 and H2 additions; however, effects of H2O2 addition on both EICO and EINO were much significant than H2 addition.

     

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