30 خرداد 1403
امين شهسوارگلدانلو

امین شهسوارگلدانلو

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه - دانشکده مهندسی - گروه مهندسی مکانیک
تحصیلات: دکترای تخصصی / مهندسی مکانیک
تلفن:
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان
Impact of oscillating magnetic field on the thermal-conductivity of waterFe3O4 and water-Fe3O4/CNT ferro-fluids: Experimental study
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Ferro-fluid Carbon nanotubes Fe3O4 Thermal-conductivity Oscillating magnetic field
پژوهشگران وی لیو (نفر اول)، جلال الصراف (نفر دوم)، امین شهسوارگلدانلو (نفر سوم)، محفوظ رستم زاده (نفر چهارم)، مسعود افرند (نفر پنجم)، ترانگ خانگ انگوین (نفر ششم به بعد)

چکیده

The aim of this experimental assessment is to examine the influence of an oscillating magnetic field on the thermal-conductivity of a water-Fe3O4 and water-Fe3O4/CNT ferro-fluids. Magnetic field is created by an electromagnet composed of a core made of ferrite and two copper windings. The impacts of magnetic field strength and frequency are also examined and the findings are compared with those of the constant magnetic field. The outcomes revealed that the pattern of thermal-conductivity in the attendance of a constant magnetic field is initially ascending and then descending. In addition, it was found that the descending trend of the thermalconductivity can be prevented by using an oscillating magnetic field. Moreover, the results depicted that the most effective oscillating magnetic field has a frequency equal to the inverse of one minute less than time to reach the highest thermal-conductivity in the attendance of constant magnetic field. According to the results, the highest increase in the average thermal-conductivity of the water-Fe3O4 and water-Fe3O4/CNT ferro-fluids in the attendance of an oscillating magnetic field of 700 Gauss in comparison to the case of a constant magnetic field of 700 Gauss, is respectively 22.62 and 24.25%.