Corrosion-wear simulation of automotive engine component materials under biodiesel
Başlık çevirisi mevcut değil.
- Tez No: 778750
- Danışmanlar: Belirtilmemiş.
- Tez Türü: Yüksek Lisans
- Konular: Otomotiv Mühendisliği, Automotive Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2021
- Dil: İngilizce
- Üniversite: Internatıonal Islamıc Unıversıty Malaysıa
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
Biodiesel has become increasingly common and significant alternative to traditional petroleum fuel in recent years. However, biodiesel has some adverse effects such as susceptible to corrosion, oxidation and mixed wear to the engine components materials. Therefore, in this study, wear simulation of automotive engine component materials was done using computational fluid dynamics approach to develop to predict wear and corrosion behaviour of engine components materials and develop wear mechanism map. A pin-on-disc configuration was considered as a simulation model of wear under biodiesel whereby load was applied from pin to disc during the simulation process and corrosion behaviour was simulated using boundary box whereby biodiesel entered from the inlet section of the boundary box and left the system from the outlet section using three different types of steel materials. The relationship between wear rate, applied load and sliding velocity were simulated and discussed followed by the development of wear mechanism map. The corrosive and abrasive wear mixture were dominated for carbon steel and low-alloy steel. Stainless steel showed better wear-resistant behavior than other materials under biodiesel exposure. The individual wear map generated for the individual material is also discussed in the context of the wear mechanisms observed under biodiesel contact.
Özet (Çeviri)
ت األخرية. ومع ذلك ، فإن وقود الديزل احليوي له بعض اآلاثر الضارة مثل تعرضه للتآكل واألكسدة والتآكل املختلط ملواد مكوانت احملرك. لذلك ، يف هذه الدراسة ، مت إجراء حماكاة التآكل ملواد مكوانت حمرك السيارات ابستخدام هنج ديناميكا املوائع احلسابية لتطوير التنبؤات بسلوك التآكالت ملواد مكوانت احملرك وتطوير خريطة آلية التآكل. واعت رغي ُ رب تكوين دبوس )ب (على القرص كنموذج حماكاة إلرتداء حتت وقود الديزل احليوي حيث مت تطبيق احلمل من دبوس إىل القرص أثناء عملية احملاكاة ومت حماكاة سلوك التآكل ابستخدام مربع احلدود حيث دخل وقود الديزل احليوي من قسم مدخل مربع احلدود، وترك النظام من قسم منفذ ابستخدام ثالثة أنواع خمتلفة من املواد الفوالذية. مت حماكاة العالقة بني معدل التآكل واحلمل املطبق وسرعة االنزالق ومناقشتها متبوعا بتطو ة التآكل. سيطر على خلي ّ ير خريطة آلي ط التآكل والكشط الكربوين والفوالذ الصلب منخفض السبائك. أظهر الفوالذ املقاوم للصدأ سلوكا أفضل مقاومة لالهتاء من املواد األخرى حتت التعرض للديزل احليوي. وتناقش أيضا خريطة التآكل الفردية اليت مت إنشاؤها للمواد الفردية يف سياق آليات التآكل اليت لوحظت حتت اتصال وقود الديزل احليوي
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