کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4994541 | 1458032 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flow boiling heat transfer on a Carbon/Carbon surface
ترجمه فارسی عنوان
انتقال حرارت جوش بر روی یک سطح کربن / کربن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Carbon/Carbon (C/C) is one of the most high-tech materials developed by the aerospace industry and then applied to critical components in several different applications. This composite material appears to be a viable option for future thermal management devices because it exploits interesting properties having a low density and a relatively high thermal conductivity as compared to copper; moreover, it has already been used in many industrial applications where it is shaped in various forms even complex. This study explores C/C heat transfer capabilities during the boiling process of a synthetic refrigerant. In particular, this paper presents the experimental measurements carried out during flow boiling heat transfer of R134a on a C/C surface. The sample was tested in a new experimental facility especially designed for studying the flow boiling heat transfer process on innovative materials and enhanced micro- and nano-structured surfaces. The tests were run at constant mean saturation temperature of 30 °C, by varying the heat flux from 50 kW mâ2 to 100 kW mâ2, and the refrigerant mass velocity from 50 to 200 kg mâ2 sâ1. The heat transfer measurements were compared with flow visualizations of boiling heat transfer at different operating conditions. Finally, a new model was developed and validated to estimate the refrigerant flow boiling heat transfer coefficients on C/C surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 109, June 2017, Pages 938-948
Journal: International Journal of Heat and Mass Transfer - Volume 109, June 2017, Pages 938-948
نویسندگان
Luca Doretti, Giovanni A. Longo, Simone Mancin, Giulia Righetti, Claudio Zilio,