کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8918705 1642857 2018 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solar energy latent thermal storage by phase change materials (PCMs) in a honeycomb system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Solar energy latent thermal storage by phase change materials (PCMs) in a honeycomb system
چکیده انگلیسی
A computational investigation of a honeycomb system with Phase Change Materials (PCM) for solar energy applications is accomplished. The system is a solid honeycomb structure made in checkerboard matrix using parallel squared channels, half of them are filled with PCM and in the other the Heat Transfer Fluid (HTF) passes through. Transient regime numerical simulations are created for different channels per unit of length (CPL). The Solid-liquid PCM is paraffin wax. A comparison between the direct honeycomb model (Model A) and a porous medium model (Model B) is carried out. The model B is modelled with the extended Darcy-Brinkman law using the Local Thermal Equilibrium (LTE) assumption for heat exchange between solid and liquid zones. By the results of the direct honeycomb model, the characteristics such as permeability, effective thermal conductivity and interfacial heat transfer are evaluated and then compared with the porous medium model. Numerical simulations were carried out using the Ansys-Fluent code. Results in terms of melting time and temperature fields as function of time are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermal Science and Engineering Progress - Volume 6, June 2018, Pages 410-420
نویسندگان
, , , ,