Ultrasonic destruction of microorganisms in shipboard fuels: Preliminary design of a full scale flowthrough system


  1. Edwards, E.C.
  2. Scholaert, H.S.B.
  3. Shen, A.P.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Aastra Aerospace Inc, North York ONT (CAN)
Under prior contracts to DREA, Aastra has proved the feasibility of destroying microorganisms in fuel using ultrasound. Aastra's most recent work has addressed the preliminary design of a full-scale flow through system for treating shipboard fuels and ballast waters. A number of the design issues for shipboard and shore-based applications have been evaluated conceptually and experimentally. Prototype systems were evaluated in the context of effectiveness, relative cost, power consumption, and reliability. All trials were performed at scales and conditions similar to those of the actual application. The laboratory test apparatus represents a single module of the proposed full-scale design. The power supply was designed to incorporate all elements of the full-scale supply, and has additional features which permit various ultrasonic configurations to be powered at their unique optimum conditions. This has permitted objective, quantitative comparisons of different configurations using physical and acoustic methods. Additionally, a review of shipboard architectures has led to general recommendations for the location and operating methodology of shipboard systems.
Power consumption;Fuel quality;Fuel sterilization;Ultrasonics;Microbiological contamination
Report Number
DREA-CR-96-434;ENG-1087-405-001 — Contractor Report
Date of publication
01 Mar 1996
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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