Northern California SNAME Hears Paper On Energy Conservation

The Northern California Section of The Society of Naval Architects and Marine Engineers held the first meeting of its 1980- 81 season recently at the Engineers Club in San Francisco.

During the business program a certificate was presented to Jonathan J. Shields, a member of the Section, designating him the Wilbur N. Landers Scholar of the Society. As a recipient of the foremost graduate scholarship offered by the Society, Mr. Shields will pursue graduate studies in hydrodynamics at the University of California, Berkeley.

The technical program consisted of the presentation of a paper titled "Energy Conservation in Steamships," by John W. Mann, manager, thermal systems engineering, Industrial and Marine Steam Turbine Division, General Electric Company, Lynn, Mass.

The paper concerned energy conservation in steam-driven propulsion and auxiliary machinery, with special emphasis on steam cycle modifications for improved part-load efficiency. Most commercial steamships operating today were designed for best efficiency at full power, but many are operated at less than full power to reduce fuel consumption.

A "shopping list" of potential machinery modifications is offered in the paper, with estimated fuel consumption improvements quoted for each. The information in the paper can be used as a starting point for economic feasibility studies applicable to a specific ship or class of ships.

Prepared discussions were presented by Gordon R. Rosekilly and James J. Sweeney. A lively verbal d i s c u s s i o n p e r i o d with many questions from the audience followed.

Other stories from November 1980 issue


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