Volume 28 Issue 3
Mar.  2013
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WU Jing, SUN Wei, CAI Guo-biao. Simulation and experiment for preheating process of N2O monopropellant thruster with inner-heater[J]. Journal of Aerospace Power, 2013, 28(3): 556-560.
Citation: WU Jing, SUN Wei, CAI Guo-biao. Simulation and experiment for preheating process of N2O monopropellant thruster with inner-heater[J]. Journal of Aerospace Power, 2013, 28(3): 556-560.

Simulation and experiment for preheating process of N2O monopropellant thruster with inner-heater

  • Received Date: 2012-04-10
  • Publish Date: 2013-03-28
  • In order to promote the preheating effect of N2O monopropellant thruster, the structure of the thruster was improved and inner-heating mode was set up. The preheating experiment of the thruster with inner-heater was conducted in a vacuum chamber, and the catalyst was heated to 260℃(533K) with 10W after 5800s, confirming the feasibility and advantage of the inner-heating mode. 3-D model of the thruster was built and finite element software was utilized to analyze the preheating process. Time-dependent temperature filed of the structure was obtained. Numerical result agrees well with the experimental data, which demonstrates the accuracy of the simulation model. Then a simplified system model of the thruster with inner-heater was designed and 10,5,3W power were utilized to simulate the preheating process in space environment. The result shows that the catalyst will be heated to 250℃ with 10W and 5W power in 3600s, which can provide some references for the practical application of N2O monopropellant thruster.

     

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