کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6464614 1362207 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase-change heat transfer of single/hybrid nanoparticles-enhanced phase-change materials over a heated horizontal cylinder confined in a square cavity
ترجمه فارسی عنوان
انتقال حرارت انتقال فاز از مواد نانو ذرات مجزا / هیبرید افزایش یافته در یک سیلندر افقی گرم شده در حفره مربعی
کلمات کلیدی
نانو فلزی هیبرید، کنسانتره طبیعی، انتقال حرارت فاز، ذوب شدن در حفره،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Phase change convection heat transfer of hybrid nanofluids is studied.
- The enthalpy-porosity model for phase change formulation is utilized.
- A general non-dimensional analysis is performed.
- The presence of nanoparticles significantly affects the phase change process.

The melting process of a nano-enhanced phase-change material is investigated in a square cavity with a hot cylinder located in the middle of the cavity in the presence of both single and hybrid nanoparticles. The dimensionless partial differential equations are solved numerically using the Galerkin finite element method using a grid with 6000 quadrilateral elements. The effects of the volume fraction of nanoparticles, the Fourier number, the thermal conductivity parameter, and the viscosity parameters are studied. The results show that the solid-liquid interface and the liquid fraction are significantly affected by the volume fraction of nanoparticles and the thermal conductivity parameter. Additionally, it is found that the melting rate is much larger when the Fourier number changes between 0 and 0.5 and a further increase in the Fourier number causes a reduction in the rate of the melting.

30

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advanced Powder Technology - Volume 28, Issue 2, February 2017, Pages 385-397
نویسندگان
, , , ,