Showing papers on "Diesel generator published in 1970"

Feasibility analysis of shaft generators application for optimum electric power generation at sea in new built ships

Abstract: The paper reviews and analyses today's applied and practically feasible methods of electricity production on board ships. Technical, economical and last but not least ecological aspects are taken into consideration during a pros and cons selection process for the optimum electricity generation installation. A revision of opinion on the unifuel ship concept is made in the light of expected annex to Marpol 73/78 (Marine Pollution) which will impose means of reducing air pollution from marine sources. Finally the paper contains also a very thorough economical appraisal of various electrical power generation alternatives. Examples based on realistic data reveal the normally hidden investment costs as far as it concerns a delivered to the shipyard classical diesel generator sets (D.G.). If a price comparison is made between the investment cost of a HFO diesel generator set and a shaft driven generator of a hydro-mechanical option the price gap normally immensely exaggerated by the HFO D.G. protagonists dwindles away to a figure allowing recover the additional investment after approximately 3-4 years, this applies for cases where the required electricity production is in the range 300-600 kW but for electrical powers exceeding 1000 kW the shaft generator is a cheaper solution.