Volume 34 Issue 1
Jan.  2019
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Start-up and heat transfer performance of a sodium-potassium alloy heat pipe under different conditions of heating power[J]. Journal of Aerospace Power, 2019, 34(1): 1-7. doi: 10.13224/j.cnki.jasp.2019.01.001
Citation: Start-up and heat transfer performance of a sodium-potassium alloy heat pipe under different conditions of heating power[J]. Journal of Aerospace Power, 2019, 34(1): 1-7. doi: 10.13224/j.cnki.jasp.2019.01.001

Start-up and heat transfer performance of a sodium-potassium alloy heat pipe under different conditions of heating power

doi: 10.13224/j.cnki.jasp.2019.01.001
  • Received Date: 2018-01-27
  • Publish Date: 2019-01-28
  • A sodium-potassium ally (45-wt.%-Na and 55-wt.%-K) heat pipe was experimentally tested to investigate the effect of heating powers (800, 1000, 1200, 1400, and 1600W) on start-up and heat transfer performances. The results showed that under the tested operation conditions, the sodium-potassium ally heat pipe presented an optimal start-up performance with the heating power. Within the range of 800-1600W of heating power, the heat pipe could achieve a dynamic equilibrium state of heat transfer as the heat was carried away by cooling water in time, and the heat transfer coefficient of the sodium-potassium ally heat pipe, convective heat transfer coefficients of evaporator and condenser sections almost linearly increased with the heating power.

     

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