تأثير عوامل مختلفة على الخواص الفيزيائية الحرارية والريولوجية لزيت التشحيم النانوي SiO2 الناتج في مصافي البترول

المؤلفون

  • علياء محمد عواد university of technology
  • خالد عجمي سكر الجامعة التكنولوجية
  • داليا محمد جاعد وزارة النفط/ مركز البحث والتطوير النفطي

DOI:

https://doi.org/10.52716/jprs.v12i4.575

الكلمات المفتاحية:

Base (stock-60) oil، Thermal conductivity، Flashpoint، Pour point، Dynamic viscosity

الملخص

استلزم تحسين أداء محركات السيارات استخدام زيت تشحيم فعال. تم استكشاف الخصائص الفيزيائية الحرارية والسلوك الانسيابي لزيت التشحيم النانوي عن طريق خلط جزيئات SiO2 النانوية مع المخزون -60. تم تحضير زيوت التشحيم النانوية بطريقة من خطوتين باستخدام محرك مغناطيسي كخطوة أولى للخلط وجانس بالموجات فوق الصوتية. تم دراسة الخواص الانسيابية بمعدلات القص المختلفة ودرجة الحرارة وتركيزات الحجم الصلب. تم إجراء هذا البحث على تركيزات تتراوح من 0.1٪ إلى 1.0٪. أظهرت النتائج أنه مع ارتفاع درجة الحرارة ، انخفضت اللزوجة الديناميكية في جميع معدلات القص نتيجة لانخفاض تركيزات SiO2 NPs ، وأن جميع العينات أظهرت سلوكًا نيوتن في جميع درجات الحرارة المدروسة. تم اختبار الموصلية الحرارية لزيت التشحيم النانوي المحضر عند درجات حرارة مختلفة تتراوح من 20 درجة مئوية إلى 50 درجة مئوية. كانت تركيزات الأحجام الصلبة المختلفة لـ SiO2 NPs في حدود 0 إلى 1٪ تم تحقيق أقصى قيمة تعزيز عند درجة حرارة أعلى مع زيادة الكسر الحجمي لـ SiO2 NPs. كما تم قياس الخصائص الفيزيائية الحرارية الهامة الأخرى لزيت التشحيم بما في ذلك نقطة الاشتعال ونقطة الانسكاب. أوضحت النتائج أن إضافة SiO2 NPs إلى المخزون -60 بتركيز 1٪ سيؤدي إلى تحسن أقصى قدره 12٪ في نقطة الوميض فوق الزيت الأساسي ، بينما تم تحسين نقطة الصب عند إضافة النانو بنسبة 0.75٪ و تمت زيادة 1٪ مقارنة بالزيت الأساسي من -3 درجة مئوية إلى -6 درجة مئوية.

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التنزيلات

منشور

2022-12-15

كيفية الاقتباس

(1)
Awad, A. M.; Sukkar, khalid A.; Jaed, D. M. تأثير عوامل مختلفة على الخواص الفيزيائية الحرارية والريولوجية لزيت التشحيم النانوي SiO2 الناتج في مصافي البترول. Journal of Petroleum Research and Studies 2022, 12, 68-91.