Volume 32 Issue 11
Nov.  2017
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Experiment on diffusion coefficient of carbon dioxide in RP-3 aviation fuel[J]. Journal of Aerospace Power, 2017, 32(11): 2604-2608. doi: 10.13224/j.cnki.jasp.2017.11.006
Citation: Experiment on diffusion coefficient of carbon dioxide in RP-3 aviation fuel[J]. Journal of Aerospace Power, 2017, 32(11): 2604-2608. doi: 10.13224/j.cnki.jasp.2017.11.006

Experiment on diffusion coefficient of carbon dioxide in RP-3 aviation fuel

doi: 10.13224/j.cnki.jasp.2017.11.006
  • Received Date: 2016-04-23
  • Publish Date: 2017-11-28
  • A experiment apparatus based on the pressure decltion method was constructed, and the preliminary results concerning the carbon dioxideWater diffusion system at 29815K were in reasonable agreement with other report. Then it was used to measure the gas pressure versus time for carbon dioxideRP3 aviation fuel system under a temperature range from 28315K to 333.15K. The fitting curve agreed with the experimental data perfectly, the diffusion coefficient values at different temperatures were of magnititude 10-8m2/s. From the experimental result, the relationship between the mass diffusion coefficient and temperature satisfied the Arrhenius rate law. A model of prediction of diffusion coefficient of carbon dioxide in RP3 aviation fuel was built according to existing data in the experiment. To verify the accuracy of the prediction model, more experiments under the conditions of 253.15, 263.15K and 273.15K were conducted. The experiment results matched the fitting equation with accuracy and extensionality.

     

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