Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Development of Complex Energy Saving Device

  • Lee, Kwi-Joo (Department of Naval Architecture and Ocean Engineering, Chosun University) ;
  • An, Jung-Sun (Department of Naval Architecture and Ocean Engineering, Chosun University)
  • Received : 2011.05.19
  • Accepted : 2012.06.21
  • Published : 2012.06.30
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Abstract

A complex energy saving device has been developed for middle class vessels. The propulsive performance of the developed device is described through a model test. The pre-swirl stator, which recovers the rotational energy of the propeller slipstream, is a well-known energy saving device for large vessels. The pre-swirl stator for a large vessel is usually cast as a part of the stern frame and has a high cost. The manufacture of a cast stator for an existing vessel is almost impossible. The complex device that was developed can be fitted on astern frame by welding. The model tests show a 4-6% efficiency gain for middle class vessels with the developed appendages compared to those with bare hulls.

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References

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Cited by

  1. A study on the Development of Energy-Saving Device "Crown Duct" vol.26, pp.5, 2012, https://doi.org/10.5574/KSOE.2012.26.5.001