کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8083615 1521701 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An experimental study on two-phase flow resistances and interfacial drag in packed porous beds
ترجمه فارسی عنوان
یک مطالعه تجربی در مورد مقاومت دو فاز و مقاومت فضایی در تخت های متخلخل بسته بندی شده
کلمات کلیدی
قابلیت دفع زباله، تخت بسته بندی شده، افت فشار، کشش بین فصلی، دو فاز جریان،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
چکیده انگلیسی
Motivated by reducing the uncertainties in quantification of debris bed coolability, this paper reports an experimental study on two-phase flow resistances and interfacial drag in packed porous beds. The experiments are performed on the DEBECO-LT (DEbris BEd COolability-Low Temperature) test facility which is constructed to investigate the adiabatic single and two phase flow in porous beds. The pressure drops are measured when air-water two phase flow passes through the porous beds packed with different size particles, and the effects of interfacial drag are studied especially. The results show that, for two phase flow through the beds packed with small size particles such as 1.5 mm and 2 mm spheres, the contribution of interfacial drag to the pressure drops is weak and ignorable, while the significant effects are conducted on the pressure drops of the beds with bigger size particles like 3 mm and 6 mm spheres, where the interfacial drag in beds with larger particles will result in a descent-ascent tendency in the pressure drop curves along with the fluid velocity, and the effect of interfacial drag should be considered in the debris coolability analysis models for beds with bigger size particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Technology - Volume 50, Issue 6, August 2018, Pages 842-848
نویسندگان
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