بررسی تجربی عملکرد هیدروترمودینامیکی مبدل حرارتی دو لوله ای بااستفاده از نانوسیال و نوارتابیده دوگانه

نوع مقاله : مقاله علمی پژوهشی

نویسندگان

گروه مهندسی مکانیک، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

چکیده

مطالعه حاضر به بررسی تجربی عملکرد هیدروترمودینامیکی مبدل حرارتی دو لوله ای با استفاده از نانوسیال آب- اکسید منیزیم و نوار تابیده دوگانه و با سه گام متفاوت ( 3.5، 5 و7cm )پرداخته است. آزمایشات در جریان مغشوش و در محدوده عدد رینولدز 4400 تا 16000 صورت گرفته و نانوسیال مورد استفاده در کسرهای حجمی 0.7% و 1% می باشد.همچنین تاثیر استفاده از نوارهای تابیده دوگانه در سه گام و نانوسیال اکسید منیزیم در اعداد رینولدز بالا بیشتر می باشد. هنگام استفاده نانوسیال و نوارتابیده با گام 3.5cm بیشترین مقدار معیار ارزیابی عملکرد نسبت به حالت پایه حاصل می گردد.

کلیدواژه‌ها

موضوعات


 
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