添加複合奈米機油於四行程機車引擎性能與廢氣排放影響之研究
No Thumbnail Available
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
本研究針對四行程機車，添加兩種不同性質之奈米材料(二氧化矽與多壁奈米碳管)於原廠機油中，研究機車在運行時的燃料消耗率(km/L)、溫度特性變化及廢氣污染排放做為實驗成果的效益評估。本研究總共試驗了2.1、2.15、2.2、2.6、2.65與2.7 wt.%的複合奈米機油，最後選定綜效表現較佳的2.65 wt.%複合奈米機油。在磨潤實驗與熱傳導實驗中，複合奈米機油相較於原廠機油，平均降低37.75 %的磨耗量與提升12.3 %的熱傳導係數。在實車實驗中，經市區及定速的行車型態測試下，平均燃油消耗量(km/L)提升了7.5 %。在油門開度50 %的測試下，平路與爬坡(4度坡)車速增加了9.52及8.74 %。在行車測試的溫度量測中，缸壁與機油溫度分別降低6.3 %、6.9 %，排氣溫度上升26.6 %。在廢氣排放量測中，HC與CO總量減少了22.51 %、26.12 %，CO2排放提升了3.89 %，PM值排放在粒徑2 μm以下總量增加了47.34 %。實驗證實複合奈米機油可以提供引擎較佳潤滑與散熱之效果，並從排氣溫度、CO2與PM值的提升可以證實引擎燃燒變得更完全，並降低HC與CO之排放。
In this study, two different types of nanoparticles (SiO2 and MWCNT) were added to the base engine oil (20W40), which using on four-stroke motorcycle. A total of 2.1, 2.15, 2.2, 2.6, 2.65 and 2.7 wt.% of hybrid nano lubricant were tested in this study. Finally, 2.65 wt.% with better comprehensive effect was selected. In the tribology experimental and the thermal conductivity experiment has an average reduction of 37.75 % and 12.3% compared with the base oil. In the vehicle experiment, the average fuel consumption (km/L) increased by 7.5%, and the speed of the flat road and the climbing (four-degree slope) increased by 9.52 and 8.74%. The temperature characteristics during the driving test, the cylinder wall and the oil temperature was reduced by 6.3% and 6.9%, the exhaust temperature was increased by 26.6%. In the exhaust emissions, the total amount of HC and CO decreased by 22.51% and 26.12%, the CO2 emission increased by 3.89%, and the PM value increased by 47.34% under the particle size of 2 μm. Experiments have confirmed that the hybrid nano lubricant can provide better lubrication to make the engine burn more completely and better heat dissipation.
In this study, two different types of nanoparticles (SiO2 and MWCNT) were added to the base engine oil (20W40), which using on four-stroke motorcycle. A total of 2.1, 2.15, 2.2, 2.6, 2.65 and 2.7 wt.% of hybrid nano lubricant were tested in this study. Finally, 2.65 wt.% with better comprehensive effect was selected. In the tribology experimental and the thermal conductivity experiment has an average reduction of 37.75 % and 12.3% compared with the base oil. In the vehicle experiment, the average fuel consumption (km/L) increased by 7.5%, and the speed of the flat road and the climbing (four-degree slope) increased by 9.52 and 8.74%. The temperature characteristics during the driving test, the cylinder wall and the oil temperature was reduced by 6.3% and 6.9%, the exhaust temperature was increased by 26.6%. In the exhaust emissions, the total amount of HC and CO decreased by 22.51% and 26.12%, the CO2 emission increased by 3.89%, and the PM value increased by 47.34% under the particle size of 2 μm. Experiments have confirmed that the hybrid nano lubricant can provide better lubrication to make the engine burn more completely and better heat dissipation.
Description
Keywords
複合奈米機油, 磨潤, 熱傳導係數, 燃料消耗率(km/L), 廢氣汙染排放, 粒狀汙染物(PM)排放, Hybrid nano lubricant, Tribology, Thermal conductivity, Fuel consumption, Exhaust emissions, Particulate matter emissions