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김성태(S.T.Kim),김명환(M.H.Kim),오철(C.Oh) 한국해양대학교 해사산업연구소 1999 海事産業硏究所論文集 Vol.9 No.-
Recently, With the explosive increase in population and a rapid industry growth, we are confronted with serious water deficiency problem. In Korea, the demand of LNG, as a cheap and clean energy which does not cause an environmental pollution is in creasing every year. However, when it is serviced, a huge amount of cold energy accumulated in LNG is wasted. The goal of this study Is to develop a sea water freezing desalination for using LNG with wasted cold energy. So we have to establish a qualitative and quantitative data regarding the freezing behavior of sea water. In order to obtain this data, the freezing of sea water was performed experimentally around a cooled tube in a rectangular vessel.
김성태(S.T.Kim),남정길(J.G.Nam),최재성(J.S.Choi) 한국해양대학교 해사산업연구소 1998 海事産業硏究所論文集 Vol.8 No.-
In this study it is' reviewed how to induce thermo-dynamically and mathematically the heat transfer coefficient formulas studied & reported for small high-speed internal combustion engines mainly. And using these formulas it is ensure to fit the calculation value with obtained combustion pressure data through experiment from low speed large marine diesel engine. Also it is analyzed that the measured temperatures of cylinder head, liner and piston crown those of the heat transferred wall area in combustion chamber with load variation. Accordingly, the characteristic of heat transfer has been grasped by analyzing variously a heat loss through combustion chamber wall which influence on confidence & economical efficiency belongs to basic items for internal combustion engines.