• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.11a
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• pp.94-95
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• 2011

선박 엔진 크랭크 케이스 내부의 기계 결함으로 발생하는 윤활 오일 미스트 발생은 폭발뿐만 아니라 급격한 온도와 압력상승으로 2차 폭발을 야기하는 등 큰 피해를 가져와 현재 선박용 엔진의 크랭크 케이스에 오일미스트 검출장치의 설치를 의무화 하고 있는 추세이다. 본 논문에서는 이러한 피해를 줄이기 위하여 광 산란 방식을 이용한 오일 미스트 검출장치를 구현하였으며, 구현된 오일미스트 검출 장치의 오일미스검출 센서 센싱 성능은 전기적, 광학적 그 외 환경적 요인으로 인하여 출력값이 일정하지 못해 각각의 오일미스트 검출 센서를 보정해야 한다. 본 논문에서는 크랭크케이스마다 장착되는 오일미스트 검출 센서의 오차를 최소화하기 위하여 정밀하게 Calibration된 Reference Data를 기반으로 최소자승법을 적용하여 센서를 Calibration하였으며, 그 결과 각각의 오일미스 검출센서의 오차를 기존 방법과 비교하여 최소화할 수 있었다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.531-532
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• 2003

공작기계 가동시 윤활과 냉각 등의 목적으로 다양한 종류의 금속가공유 (MWFs : 절삭유, 윤활유, 방청유 둥)를 사용하고 있다. MWFs에는 포름알데히드, 니트로스아민, 염화파라핀 등의 발암물질이 포함되어 있는 것으로 알려져 있어 작업자 건강보호를 위해 효율적인 환기가 요구되고 있다. 현장에서 가장 많이 사용하고 있는 포켓 필터형 오일미스트 콜렉터는 제진 장치가 없기 때문에 필터 표면에 한번 부착된 오일 미스트와 먼지가 떨어지지 않기 때문에 일정시간 후 필터 표면에 막힘 현상이 발생한다. 필터 표면이 막히면 차압 증가와 함께 송풍량이 감소하기 때문에 미스트 제거 효율이 크게 저하되고, 결과적으로 오일미스트의 환기 효율이 크게 감소된다.(중략)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.10a
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• pp.87-87
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• 2003

• Journal of the KSME
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• v.55 no.6
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• pp.34-37
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• 2015

이 글에서는 유전체 배리어 방전 플라즈마를 활용하여 오일 미스트를 1차 집진한 뒤에 2차적으로 $CO/CO_2$로 전환하여 저감하는 기술에 대해 소개하고자 한다.

• Journal of Advanced Marine Engineering and Technology
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• v.38 no.7
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• pp.834-843
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• 2014

A two-stage electrostatic precipitator (ESP) using a carbon brush charger and a plate-plate parallel aluminum collector was developed and its application for removal of oil mist aerosols was investigated. Charge number per particle and particle collection efficiency at different applied voltage to the carbon brush charger were measured and compared to those obtained by theoretical calculations. A long-term operation of the ESP during 9 weeks was also performed to evaluate its performance durability for oil mists. Average charge number per mist particle increased with the applied voltage to the charger, and thus the collection efficiency of the mist particles also increased overall at the particle size range of 0.26 - 3 mm. The tendencies of the average charge number per particle and particle collection efficiency obtained from theoretical calculations were considerably consistent with those of the experimental results. Particle collection efficiency of ~99 % at 0.3 mm could be achieved by power consumption of only 0.0033 W/($m^3/h$) at the face velocity of 1 m/s and its collection performance maintained stably during every 8 hr operation per day for 9 weeks with little increase of pressure drop.

• Ceramist
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• v.15 no.6
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• pp.20-25
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• 2012

• Ceramist
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• v.4 no.2
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• pp.63-68
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• 2001

• The KSFM Journal of Fluid Machinery
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• v.11 no.5
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• pp.57-60
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• 2008

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.22 no.2
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• pp.223-227
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• 2013

Dust collecting performance of cyclone collector for oil mist was alalyzed in the study. The purposes of using cutting fluid during cutting have been colling, lubricating, chip washing and anti-corroding. However, the present manufactaring industry restricts the use of cutting fluid because cutting fluid confains poisonous substances which are harmful to the human body. Also, the optimum design oil-mist collector. The new oil mist collector was designed. In the near future, this device must be tested in the real machining center and CNC machine. Cutting using oil-mist showed better cutting characteristics than dry, air and fluid cutting with respect to by cutting force, tool wear and surface roughness. The model(A, B Type cyclone) of the set of fixture and alveolus are made by using a CAE software. Finally, we have obtained a model A Type solution by using orthogonal array. Therefore, it could be confirmed that as the model-A was increased and model-B was decreased, cut diameter was decreased.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.24-27
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• 2002

The environmental problems by using coolant demanded the new cooling methods. As one of them, the studies on the finding with compressed cold air and oil mist have been done. The cooling method using compressed cold air was effective through going down the temperature of compressed air supplied below $-25^{\circ}$ and increasing the amount of compressed cold air, but had not enough cooling effect due to the low performance of lubrication. Therefore, the cooling methods using oil mist newly were suggested. This method can satisfy both cooling effect and lubrication with only small amount of coolant, also have the benefit in the point of decreasing the environmental pollution. This paper focused on analyzing the grinding characteristics of the cooling method using oil mist. The grinding test according to compressed cold air, oil mist spray pressure and oil mist supply direction were done.