نانوسیالات در عایق ترانسفورماتور: سنتز، عملکرد و چشم‌اندازهای آینده
محورهای موضوعی : کاربرد نانوساختارها
مجید میرزایی
1
*
,
مجید رضایی آبادچی
2
,
علیمراد رشیدی
3
1 - گروه مواد غیرفلزی، پژوهشگاه نیرو، تهران، ایران
2 - گروه مواد غیرفلزی پژوهشگاه نیرو، تهران، ایران
3 - گروه مواد غیرفلزی، پژوهشگاه نیرو، تهران، ایران
کلید واژه: ترانسفورماتور, روغن, نانوسیال, نانومواد.,
چکیده مقاله :
با افزایش سطح ولتاژ در انتقال برق، نیاز به اطمینان از عملکرد عایقی ترانسفورماتورها به‌طور چشمگیری افزایش یافته است. روغن معدنی و کاغذ اجزای اصلی عایقی در ترانسفورماتورهای پر شده با روغن هستند. با توجه به افزایش نیاز به توسعه عایق‌های برتر، محققان متعددی مطالعاتی آزمایشی برای اثبات اثربخشی و توانمندی روغن ترانسفورماتورها انجام داده‌اند. برای ارتقاء سطح عایقی ترانسفورماتورهای با ولتاژ فوق‌العاده بالا و کاهش وزن و ابعاد آن‌ها، افزایش هدایت عایقی روغن ترانسفورماتورها و سلولز آغشته به آن ضروری است. اخیراً، پروژه‌ای نوآورانه در زمینه به‌کارگیری نانوفناوری در عایق‌های مایع ترانسفورماتورها اجرا شده که نتایج آن نشان‌دهنده بهبود چشمگیر در ویژگی‌های عایقی روغن ترانسفورماتورها بوده است. حوزه نانو سیالات مبتنی بر روغن ترانسفورماتور توجه زیادی را از هر دو جنبه نظری و کاربردی جلب کرده است. نانو سیالات می‌توانند به‌عنوان جایگزینی بالقوه برای روغن‌های معدنی در آینده نزدیک مورد استفاده قرار گیرند. این مقاله به بررسی مجموعه‌ای از پژوهش‌های انجام‌شده در این زمینه می‌پردازد که به سه بخش تقسیم می‌شود. بخش اول معطوف به تهیه نانو سیال است که شامل انواع مختلف نانو مواد و روش‌های سنتزی جهت تولید نانو سیالات پایدار و معلق می‌شود. در بخش دوم، عملکرد نانو سیالات با تمرکز بر ویژگی‌های حرارتی، الکتریکی و فیزیکوشیمیایی روغن ترانسفورماتور به‌طور دقیق بررسی و مقایسه می‌شود و در بخش سوم به مزایا و محدودیت‌های نانو سیالات پرداخته می شود. اهمیت این مقاله در گردآوری مطالعات پیشین، دسته‌بندی طبیعت تحقیقاتی و پیش‌بینی روندهای آینده نهفته است. همچنین چند توصیه برای تحقیقات و کاربردهای آتی نانو سیالات ارائه می‌شود.
With the increase in voltage levels in power transmission, the need to ensure the insulating performance of transformers has significantly increased. Mineral oil and paper are the main insulating components in oil-filled transformers. Given the growing demand for superior insulations, several researchers have conducted experimental studies to demonstrate the effectiveness and capabilities of transformer oils. To enhance the insulating level of ultra-high voltage transformers and reduce their weight and dimensions, it is essential to increase the dielectric strength of transformer oil and the cellulose impregnated. Recently, an innovative project has been implemented in the application of nanotechnology in the liquid insulations of transformers, with results indicating a significant improvement in the insulating properties of transformer oils. The field of oil-based transformer nanofluids has recently attracted considerable attention from both theoretical and practical perspectives. Nanofluids can be used as a potential replacement for mineral oils in the near future. This article reviews a collection of research conducted in this area, divided into three main sections. The first section focuses on the preparation of nanofluids, including various types of nanomaterials and synthetic methods for producing stable and suspended nanofluids. The second section thoroughly examines and compares the performance of nanofluids, concentrating on the thermal, electrical, and physicochemical properties of transformer oil. The third section addresses the advantages and limitations of nanofluids. The significance of this article lies in its compilation of previous studies, categorization of research nature, motivations, and predictions of future trends. Additionally, several recommendations for future research and applications of nanofluids are provided.
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