کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
649734 884669 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Network model for the numerical simulation of transient radiative transfer process between the thick walls of enclosures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Network model for the numerical simulation of transient radiative transfer process between the thick walls of enclosures
چکیده انگلیسی

In this work Oppenheim’s idea is extend to enclosures with thick walls that operate under unsteady-state conditions. In many real problems, radiation heat transfer will cause the internal energy and the temperature of a solid to change, making it necessary to incorporate the time-dependent heat conduction in the walls and radiation boundary conditions at the wall surfaces. The heat-transfer rate can then be interpreted as a quasi-steady-state event, for which the network simulation method would seem to be a suitable solution method. The heat flux and temperature variables are equivalent to electric current and voltage, respectively, in this thermo-electric analogy. The solid, the gas medium and the boundary conditions can be included by means of electrical devices connected to the boundary networks. No mathematical manipulation, a common feature of most numerical methods, is required. All enclosure configurations analysed in this study demonstrate an unprecedented articulation between the unsteady conduction in the solid walls and the radiation transfer in the gaseous medium occupying the space between the walls.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 26, Issue 7, May 2006, Pages 673–679
نویسندگان
, ,