کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6619054 | 1424483 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling investigation on the thermal conductivity of saturated vapor
ترجمه فارسی عنوان
بررسی مدلسازی هدایت حرارتی بخار اشباع شده
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کلمات کلیدی
طول مشخصه، هدایت حرارتی، سرعت صوت، بخار اشباع شده،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
A general analytical equation to predict thermal conductivity of saturated vapors has been expressed. It was started with a global energy transfer equation which rearranged by molecular heat capacity and density. Then we replaced speed of sound and a new parameter as characteristic length of energy, Î, instead of heat transfer velocity and mean free path, respectively. The values of Î for ideal gases showed a linear correlation to molar volume with a material dependent slope behind the Ï (molecular diameter) parameter. However, considering different materials in the saturated vapor state, say 14, including monatomic and polyatomic as non-polar, polar and polar-protic substances concluded a linear relation for Î value versus reduced molar volume. It is noticeably found that for saturated vapor the Î value and then the final equation for thermal conductivity can be considered independent of material type.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 474, 25 October 2018, Pages 14-19
Journal: Fluid Phase Equilibria - Volume 474, 25 October 2018, Pages 14-19
نویسندگان
Majid Emami-Meibodi, Mohammad Reza Elahifard,