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Volume 27 Issue 2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2019  >  27(2): 212-216
BAI Jie, DANG Jian-jun, CAO Lei-lei. Thermodynamic Performance Analysis of a New Type of UUV Power System Based on Li/SF6 Energy[J]. Journal of Unmanned Undersea Systems, 2019, 27(2): 212-216. doi: 10.11993/j.issn.2096-3920.2019.02.014
Citation: BAI Jie, DANG Jian-jun, CAO Lei-lei. Thermodynamic Performance Analysis of a New Type of UUV Power System Based on Li/SF6 Energy[J]. Journal of Unmanned Undersea Systems, 2019, 27(2): 212-216. doi: 10.11993/j.issn.2096-3920.2019.02.014
shu

Thermodynamic Performance Analysis of a New Type of UUV Power System Based on Li/SF6 Energy

doi: 10.11993/j.issn.2096-3920.2019.02.014
  • 1.

    Key Laboratory of Road Construction Technology and Equipment of Ministry of Education, Chang’an Univerisity, Xi’an 710064, China

  • 2.

    School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

  • Received Date: 2018-09-25
  • Rev Recd Date: 2018-10-08
  • Publish Date: 2019-04-30
    Abstract
  • To develop an unmanned undersea vehicle(UUV) with the performances of long endurance, long range and deep depth, a new thermoelectric power system using Li/SF6 as energy is proposed. The system adopts Rankine cycle, and its fuel’s energy density can reach 600 Wh/kg, which is three times higher than that of the current battery. The solution algorithm for the working medium parameters’ effects on the system performance is established, and then the influences of evaporator outlet temperature, pressure, and condenser pressure on the system performance are analyzed. The results show that, within the scope of certain parameters, 0.8% increase in the system efficiency is gained for every 100 K increase in the evaporator outlet temperature; the system efficiency rises by 0.5% for every 1 MPa increase in the evaporator pressure; and the system efficiency rises by 0.2% for every 0.01 MPa decrease in the condenser pressure. This system gives a new solution to enhancing UUV energy supply, and the obtained conclusions may provide a reference for the power system design of an UUV.

     

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