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대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2022년 학술대회
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    초록·키워드

    This study investigated the viscosity of low sulfur fuel oil (LSFO) using bench-scale experiments and analyzed the effects of emulsion and evaporation on it. The results show the dependency of LSFO on the temperature, which follows the William-Landel-Ferry law. The emulsion test found that the meso-stable emulsion whose viscosity is 10-100 times larger than the normal one was achieved. Evaporation of LSFO due to initial temperature is found to be so small that its effect on oil properties is negligible in the present study. In addition, we experimentally examined the spreading features of LSFO on the water surface in the circulating water bath in which the wind speed, water temperature, and initial oil volume are controlled as 2-5 m/s, 5-25 ℃, and 100-400 ml, respectively. The spreading speed rapidly increased after a critical viscosity (~500 cP) due to the balance break between the viscosity retarding force and wind shear stress.

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