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물 혼합 연료를 사용한 디젤엔진의 EGR시스템에 의한 NO_x와 Soot의 배출특성 연구
박태인 慶尙大學校 工科大學 機械設計學科 1997 WORKSHOP 자료집 Vol.1997 No.1
Over the past years, many research works have been carried out to investigate the factors governing the performance of diesel, engine. The area of study has been focused on reducing NOx and soot, because there are many difficulties to reduce both at once in diesel engine. One of the efforts is developing EGR technology to reduce NOx emission. That is very effective on reducing NOx, but increases other emissions and makes economy worse. In order to solve the problem, EGR is employed with water emulsified fuel and tested in this experimental study. Emusified fuel is produced by centrifugal mixer and the amount of water is controlled by water injector and pulse generator. The results show that both NOx and smke emissions are reduced with a great degree simultaneously.
박태인,이현엽,Park, Tae-In,Lee, Hyun-Yup 한국마린엔지니어링학회 1979 한국마린엔지니어링학회지 Vol.3 No.1
Alignment of marine engine shafting generally implies a judicious slope alignment of supporting bearings in order to achieve acceptable values of bearing reactions and shaft stresses for all deformation conditions of hull. Authors developed a computer program, which computes the bearing reaction forces, the bearing reaction influence numbers and etc, using quadruple integration method. And the results of calculation for a 26,000 DWT steam container carrier were in good agreements with those of foreign shipyard. Also they introduced the optimization technique of slope alignment combined technical economic basis, and as a result of comparing characteristics of shafting in case of straight alignment whit those in case of slope alignment, the latter was found to be much better than the former.