کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
644750 1457129 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simplified analysis of heat and mass transfer model in droplet evaporation process
ترجمه فارسی عنوان
تجزیه و تحلیل ساده از گرما و مدل انتقال جرم در فرآیند تبخیر قطرات ریز
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


• Differential equations were developed in order to explain droplet evaporation.
• The model shows great coherency with experimental results of our predecessors.
• Relative humidity has a great effect on the decrease of the droplet radius.
• Large Ste condition leads to error of about 15%–20%.

A simplified model on single droplet evaporation into a stagnant gas space is established. The mathematical model is based on molecule diffusion on the droplet surface subjected to boundary conditions of constant temperature and conduction heat transferring on the external surface of the spherical droplet. Constant thermal properties are assumed throughout the analysis for the droplet. Non-linear empirical equations are applied to the ODEs in the numerical solution to expand its range of applicability. The effects of variables, such as surrounding temperature and humidity, and droplet initial radius were investigated. Furthermore, a comparison is made between the present study and the numerical or analytical solution given in the literature. The results show that the present model can give better results than other numerical or analytical solutions presented in the literature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 99, 25 April 2016, Pages 938–943
نویسندگان
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