• Title/Summary/Keyword: Deteriorating of Lubricant

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A Study on the Prediction for the Performance and the Size of the Vehicle Radiator (자동차 엔진 방열기의 뱅각 성능 및 방열 면적 예측에 관한 연구)

  • 박찬국;이종범;엄호룡;정우인
    • Transactions of the Korean Society of Automotive Engineers
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    • v.5 no.3
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    • pp.117-127
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    • 1997
  • To maintain the reasonable temperature in the engine is very important to keep the steady combustion state of engine and to prevent increasing of lubricant consump- tion, deteriorating of lubricant, shortening of the life time of engine and decreasing of material strength. The method of energy balance for devided elements of radiator is considered to analyse the performance of radiator. Th data of engine test and vehicle cooling tunnel test are applied to program for calculation of radiator outlet temperature, and this result is compared with outlet temperature of vehicle cooling tunnel test. As a result, the radiator outlet temperature by numerical analysis agrees well with that by experiment. It is concluded that this simulation program is available in developing the cooling system for a new car.

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A Study on the Design of the Vehicle Cooling System (자동차 엔진의 냉각계통 설계에 관한 연구)

  • 박찬국;이종범;정우인
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.8
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    • pp.7-16
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    • 1999
  • To maintain thereasonable temperature in the engines is very important to keep the steady combustion state of engine and to prevent increasing of oil consumption , deteriorating of lubricant, shortening of the life time of engine and decreasing of material strength. The method of energy balance for divided elements of radiator and engine-oil cooler is considered to analyse the performance of radiator and engine-oil cooler. The data obtained by engine test and vehicle cooling tunnel test are applied to program for calculation of radiator outlet temperature. As a result, data obtained by numerical analysis agree well with those by experiments. And thus, it is concluded that this simulation program is available in developing the cooling system for a new car.

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