高経済型直結発電システム (SSG) の開発

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The Super Economical Shaft Generator (SSG) System has been developed to offer the most rational features to realize economical ship operation. The SSG System permits the most effective recovery of waste heat when it is incorporated with a marine diesel propulsion plant. In the System, a turbo-generator is coupled mechanically to the main engine (s) and, when the turbine output exceeds the onboard electricity demand, the excess power is diverted to the main engine to assist propulsion. When the conditions are reversed, the turbo-generator is backed up by the main engine to meet the electricity demand and diesel generators are not required to be operated during ships normal seagoing. The System may be employed in combination with low-speed or medium-speed main diesel engines in a wide range of engine output. Main features of the SSG System are as follows; 1) Unique reciprocal power transmission between the main engine and the turbo-generator set. 2) High power-transmitting efficiency ensured through mechanical coupling. 3) Combined advantages of turbo-generator system and shaft generator system 4) Applicable over wide range of main engine load 5) Utilization of boiler steam for propulsion during the tankers inert gas topping-up operation 6) Direct conversion of saved steam and electricity to assist propulsion power 7) Simple and most compact design 8) Easy to control This paper reports the basic design and running data of the first SSG system installed in an 80, 000 MTDW tanker, and also presents an outline of the newly developed SSG MK-II system which enables recovery of low temperature waste heat.
社団法人日本マリンエンジニアリング学会の論文

高経済型直結発電システム (SSG) の開発

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