Pressure loss and compensation in the combustion process of Al-CuO nanoenergetics on a microheater chip

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Jinpeng Shen
  • Zhiqiang Qiao
  • Jun Wang
  • Rui Li
  • Fude Nie
  • Guangcheng Yang

Detail(s)

Original languageEnglish
Pages (from-to)2975-2981
Journal / PublicationCombustion and Flame
Volume161
Issue number11
Online published20 May 2014
Publication statusPublished - Nov 2014

Abstract

This study investigates pressure loss and compensation in the combustion process of Al-CuO metastable intermolecular composite (MIC) on a microheater chip. A ball cell model of pressure change in the combustion process is proposed to show the effects of pressure loss on the reaction rate and efficiency of energy output at microscale. An effective compensation method for pressure loss is then developed by integrating Al-CuO MIC with CL-20 (2,4,6,8,10,12-hexanitrohexaazaisowurtzitane) onto a SiO2/Cr/Pt/Au microheater chip. The combustion processes of Al-CuO MIC with different weight percentages of fine CL-20 particles on the microheater chips are observed by high-speed video recording. Results indicate that the reaction of Al-CuO MIC is a slow combustion process that turns into intense deflagration after adding fine CL-20 particles to Al-CuO MIC. The pressure-time characteristics indicate higher maximum pressure and pressurization rate for Al-CuO/CL-20 because the pressure loss at microscale is well compensated by the addition of fine CL-20. This study proves the importance of pressure loss in the combustion process of MIC at microscale and provides an efficient compensation strategy for pressure loss to improve the reaction rate and efficiency of energy output at microscale environment.

Research Area(s)

  • Al-CuO MIC, CL-20, Compensation, Microheater chip, Pressure loss

Citation Format(s)

Pressure loss and compensation in the combustion process of Al-CuO nanoenergetics on a microheater chip. / Shen, Jinpeng; Qiao, Zhiqiang; Wang, Jun et al.
In: Combustion and Flame, Vol. 161, No. 11, 11.2014, p. 2975-2981.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review