نگاهی بر خواص، عملکرد و پایداری نانوسیال‌ها و فروسیال‌ها

نوع مقاله : علمی ترویجی

نویسندگان

1 کارشناس ارشد مهندسی مکانیک، دانشکده مهندسی مکانیک، دانشگاه آزاد اسلامی، واحد نور

2 باشگاه پژوهشگران جوان و نخبگان، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران

چکیده

بهینه‌­سازی و افزایش بازده سیستم­های انتقال حرارت، یکی از اساسی‌­ترین چالش‌­های مهندسان و طراحان طی سالیان اخیر بوده است. از همین رو، استفاده از نانوذرات در سیالات پایه، به‌عنوان روشی غیرفعال در جهت بهبود انتقال حرارت و کوچک‌­سازی سیستم‌­های گرمایشی شناخته شده است و پژوهشگران متعددی در مطالعات خود به پیش‌­بینی رفتار و قابلیت‌­های کاربردی آنها با انواع روش‌های نظری، عددی و آزمایشگاهی پرداخته‌­اند. به همین دلیل، در این مقاله با هدف آشنایی با مبانی، سازوکار، مزایای بهره‌­گیری و همچنین چالش‌های استفاده از نانوسیالات، به بررسی خواص و ویژگی‌­های آنها پرداخته می‌­شود. سپس برای درک صحیح از سازوکارهای انتقال حرارت، مدل­های ارائه‌شده و جایگاه اکتشافات تجربی در این زمینه معرفی می‌­شوند. در ادامه با معرفی فروسیال­ها یا همان نانوسیال­های مغناطیسی، به کاربردهای آنها در صنایع گوناگون اشاره می‌­شود. در نهایت روش‌های بررسی و افزایش پایداری نانوسیالات به ‌تفصیل تشریح می‌شود.

کلیدواژه‌ها


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