کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7057306 1458070 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effective thermal conductivities of a novel fuzzy carbon fiber heat exchanger containing wavy carbon nanotubes
ترجمه فارسی عنوان
هدایت حرارتی موثر یک مبدل حرارتی فیبر کربنی جدید حاوی نانولوله های کربنی موجدار است
کلمات کلیدی
مبدل حرارتی، زنگ نانو لوله کربن، هدایت حرارتی موثر،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
A novel fuzzy carbon fiber heat exchanger (FFHE) is proposed in this study. The novel constructional feature of the FFHE is that the sinusoidally wavy carbon nanotubes (CNTs) are radially grown on the outer circumferential surface of the hollow cylindrical carbon fiber (HCF) heat exchanger. The effective thermal conductivities of the FFHE have been estimated by employing the method of cells (MOC) approach and the effective medium (EM) approach. The present study reveals that if the amplitudes of the radially grown sinusoidally wavy CNTs are parallel to the axis of the HCF then the effective axial thermal conductivity of the FFHE is significantly improved over that of the bare HCF heat exchanger (i.e., without CNTs). On the other hand, if the amplitudes of the radially grown wavy CNTs are transverse to the axis of the HCF, the effective transverse thermal conductivity of the FFHE is significantly improved over that of the bare HCF heat exchanger. It is also found that the CNT/polymer matrix interfacial thermal resistance does not affect the effective thermal conductivities of the FFHE. The present investigation suggests that exploiting the waviness of radially grown CNTs on the HCF a truly multifunctional and promising heat exchanger can be developed for advanced technological applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 72, May 2014, Pages 440-451
نویسندگان
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