| 제목 |
냉각수 및 오일의 온도에 따른 연비향상에 관한 실험적 연구 |
| 분야 |
연료 및 배기 |
| 언어 |
Korean |
| 저자 |
조원준(한양대학교), 이기형(한양대학교), 김형익(한양대학교) |
| Key Words |
BMEP(제동평균유효압력), BSFC(연료소모량), Power(출력), Mass flow rate(질량유량), Coolant temperature(냉각수온도), Oil temperature(오일 온도), Frictional loss(마찰손실)
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| 초록 |
Recently, the internal combustion engines have focused on reducing the CO2 gas in order to cope with severe regulations for fuel economy. Therefore, various new technologies have been developed. Among them, cooling system is spotlighted because it has great effect on fuel economy. In this study, we measured the friction losses of engine parts according to engine speed and oil temperature. We also obtained optimized oil temperature which has the minimum friction losses. Then, we selected optimized oil temperature range and gave informations of friction losses for each engine parts. In addition, we analyzed relationship between coolant temperature and oil temperature by using engine performance test system. From this experiment, we obtained the database for relationship between coolant temperature and oil temperature. Then, we found the optimal temperature about engine oil. We analyzed BSFC and exhaust emissions by controlling the high coolant temperture. If we controlled coolant temperature more higher, BSFC has a little difference but exhaust emissions such as THC and CO have reduced. By using these experimental results, we predicted that IC engine have more low fuel consumption and exhaust emissions by optimized cooling control strategy. |
| 원문(PDF) |
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