نوع مقاله : مقاله یادداشت پژوهشی
نویسندگان
پژوهشگاه مواد و انرژی، کرج، ایران.
چکیده
در این تحقیق، ویژگی های تریبولوژیکی روغن موتور 50w20 مخلوط با 1/0% وزنی از نانوذرات کروی اکسید مس 20 نانومتری و اکسید تیتانیوم 21 نانومتری مورد بررسی قرار گرفته است. از مهمترین ویژگی های تریبولوژیکی که وجود دارد، دو عامل سایش و اصطکاک می باشد. در این تحقیق، پس از آماده سازی نانوسیالات مذکور، دو عامل سایش و ضریب اصطکاک با استفاده از تریبومتر پین و صفحه، تحت یک بار ثابت در دمای محیط یک دفعه بر روی روغن موتور خالص و دفعه دیگر بر روی روغن موتور مجهز به نانوذرات اندازه گیری و نتایج آنها با هم مقایسه گردیده است. این نتایج نشان داد که وجود نانوذرات کروی اکسید مس 20 نانومتری و اکسید تیتانیوم 21 نانومتری در روغن روانکار موتور، میزان سایش را به ترتیب تا 72/76% و 50% و ضریب اصطکاک را تا 84/17% و 48/9% در مقایسه با روغن موتور بدون نانوذرات کاهش داده است. بنابراین می توان پیش بینی کرد که نانوذرات کروی اکسید مس و اکسید تیتانیوم به عنوان افزودنی به روغن موتور می تواند نقش موثری در افزایش توان موتور و کاهش آلاینده های خروجی از موتور و مصرف سوخت ایفا کند.
کلیدواژه‌ها
عنوان مقاله [English]
Investigating effect of CuO and TiO2 Nano Particles on Tribological Characteristics of Engine Oil
نویسندگان [English]
- Mohammad Aminy
- Nastaran Barhemmati
- Seyed Amirhosein Zamzamian
Material & Energy Research Center (MERC), Karaj, Iran
چکیده [English]
in this work tribological characteristic of engine oil 20w50 mixed with 0.1% by weight of spherical nano particles of copper oxide of 20 nm and also spherical nano particles of titanium oxide of 21 nm has been investigated. Wear and friction are the two important factors of tribological characteristics. In this work after preparation of the nano fluids, two factors of wear and friction factor, using pin and plate tribometer, under constant load and at room temperature, once with pure engine oil and also with each nano fluids were measured and the results were compared to each other. The results indicated that presence of spherical nano particles of 20 nm copper oxide and 21 nm titanium oxide in lubricating oil, reduced the wear by 76.72% and 50% respectively and friction factor by 17.84% and 9.48% respectively, in comparison with engine oil without any nano particles. Therefore it can be predicted that spherical nano particles of copper oxide and titanium oxide, as an additive to engine oil, can play an effective role in increasing engine power and reduce engine exhaust emissions and fuel consumption.
کلیدواژه‌ها [English]
- Nanoparticles
- Engine Oil
- Wear
- Friction Factor
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