کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4990720 1457102 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental evaluation of scattering phase function and optimization of radiation absorption in solar photocatalytic reactors
ترجمه فارسی عنوان
ارزیابی تجربی از عملکرد فاز پراکندگی و بهینه سازی جذب تابش در راکتورهای فوتوکاتالیتی خورشیدی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Radiation absorption in photocatalytic reactors is usually simulated using the Monte Carlo (MC) stochastic method. In this article, MC is coupled with three different scattering phase functions: isotropic (ISO) phase function, diffuse reflecting large sphere (DR) phase function and Henyey-Greenstein (HG) phase function. Here, the model accuracy is examined via adequate experiments. The results show that phase function plays an important role in MC method. HG phase function is superior to ISO and DR phase functions because of small errors (less than 5%), and the value of the characteristic parameter g should be 0.64. The simulate results show that the absorption of solar radiation relates strongly to geometry configuration of reactors and catalyst concentration. The solar surface uniform concentrator (SUC) has a 9.94 times higher radiation absorption than the tubular reactor and realizes a uniform radiation distribution. The optimal catalyst concentrations of the SUC and the tubular reactor are 0.53 g/L and 0.68 g/L respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 127, 25 December 2017, Pages 302-311
نویسندگان
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