N.Y. SNAME, NYPE, IME And ASNE Joint Meeting Hears Paper On Silencing Marine Gas Turbines
The New York Metropolitan Section of The Society of Naval Architects and Marine Engineers held a joint meeting with The Society of'Marine Port Engineers, the Institute of Marine Engineers, and the American Society of Naval Engineers on December 1'2, 1973, at the Downtown Athletic Club in New York City. The Society of Marine Port Engineers was the sponsoring society for the meeting. After a social hour and dinner, the technical session was held at which a paper was presented entitled "Case Histories of the Silencing of Marine Gas Turbines," by Morton I. Schiff, vice president, Industrial Acoustics Company, Inc. The author states that while techniques for silencing gas turbines have been applied with great success to numerous land systems, only limited experience has been gained aboard ship. The silencing of shipboard gas turbines is made more complex due to the unique problems imposed by the effects of a sea/air environment, as well as the necessity for minimization of dead load and limitations on available space.
Experiences in silencing the main propulsion system aboard the Admiral Win. M. Callaghan, Military Sea Transport Service roll-on/ roll-off cargoship and the U.S. Coast Guard icebreaker Polar Star, as well as the auxiliary power units aboard the Royal Canadian DDH- 280 destroyers are discussed in the paper.