کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11020810 | 1715612 | 2019 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characteristics of carbon-based nanofluids and their application in a brazed plate heat exchanger under laminar flow
ترجمه فارسی عنوان
خصوصیات نانوفیلد های مبتنی بر کربن و کاربرد آنها در مبدل حرارتی ورق براق تحت جریان لمینار
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this study, a graphite-powder-based heating and cooling processing method (GP-HCPM) was used to produce carbon-based nanofluids (CBNFs) as working fluid for a brazed plate heat exchanger (BPHE) system. Sodium dodecyl benzenesulfonate (SDBS) was added to CBNFs as a dispersant to enhance their stability, and the CBNF concentration was adjusted to 0.2â¯wt% (S1) and 0.6â¯wt% (S2). The thermal conductivity, viscosity, density, specific heat, and contact angle of the CBNFs were measured and analyzed. Finally, the CBNFs were tested in a BPHE system to evaluate the average heat exchange capacity (QÌex,avg), pumping power consumption (Pp), and system efficiency factor (SEF) under various temperatures (35, 40, and 45â¯Â°C) and laminar flow conditions. Results show that the QÌex,avg of S1 and S2 was higher than water under all experimental parameters, indicating that CBNFs exhibit a higher heat exchange performance than water. The Pp of S1 was slightly lower than that of water. The maximum QÌex,avg and SEF enhancement ratio of S1 and S2 was 7.54% and 7.98% and 9.19% and 7.28%, respectively. Considering the overall system efficiency of experimental parameters of the BPHE system, S1 was deemed more suitable than S2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 146, 5 January 2019, Pages 160-168
Journal: Applied Thermal Engineering - Volume 146, 5 January 2019, Pages 160-168
نویسندگان
Tun-Ping Teng, Ting-Chiang Hsiao, Chun-Chi Chung,