Energy savings on frequency regulation of ship's cooling circuits

Chien Hsing Lee, Shih Hsien Hsu, Chien Nan Chen, Ming Yuan Cho, Foung Tang Lin, Tzu Kuei Yeh, Zhi Wei Liu

Research output: Contribution to journalArticlepeer-review


To calculate potential energy savings in a ship's cooling circuits, a simulation model of frequency-controlled seawater (SW) pumps is proposed that has been verified by measurements. The pumps operating at a minimum frequency of 30 Hz have a maximum energy reduction of almost 79% under both full and part load conditions when the SW intake is below 32°C. A return-on-investment period of only a few months is calculated for the frequency-controlled drive on a container vessel.

Original languageEnglish
Article number6965741
Pages (from-to)1813-1825
Number of pages13
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number3
Publication statusPublished - 2014 Jul 1

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering


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