کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4995327 | 1458706 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transient pulsed technique to characterize the radiative and conductive properties of bio aerogels
ترجمه فارسی عنوان
تکنیک پالس گذرا برای مشخص کردن ویژگیهای تابشی و هدایت کننده آنزیم های بیوگرافی
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This work presents the development of a method dedicated to the estimation of the thermal and radiative properties of bio-based aerogels, manufactured from cellulose nanofibers. This method has been developed using a transient pulsed method, which is based on the measurements of the temperature from both the front and rear faces of the sample. A theoretical model coupling radiative and conductive heat transfers is presented in which the radiative transfers are expressed by the radiative conductivity. The sensitivity analysis shows that the radiative part of the transfer is decorellated from the conductive part, so that the thermal and radiative conductivities as well as the thermal diffusivity can be estimated simultaneously. Measurements have been compared with other experiments such as the hot plate technique and we observed that thermal conductivity has been estimated with a precision lower than 5%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 116, June 2017, Pages 63-72
Journal: International Journal of Thermal Sciences - Volume 116, June 2017, Pages 63-72
نویسندگان
Thomas Pierre, Clara Jiménez-Saelices, Bastien Seantier, Yves Grohens,