کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
302376 512537 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analysis of a packed bed latent heat thermal energy storage system using PCM capsules: Numerical investigation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
An analysis of a packed bed latent heat thermal energy storage system using PCM capsules: Numerical investigation
چکیده انگلیسی

This paper is aimed at analyzing the behavior of a packed bed latent heat thermal energy storage system. The packed bed is composed of spherical capsules filled with paraffin wax as PCM usable with a solar water heating system. The model developed in this study uses the fundamental equations similar to those of Schumann, except that the phase change phenomena of PCM inside the capsules are analyzed by using enthalpy method. The equations are numerically solved, and the results obtained are used for the thermal performance analysis of both charging and discharging processes. The effects of the inlet heat transfer fluid temperature (Stefan number), mass flow rate and phase change temperature range on the thermal performance of the capsules of various radii have been investigated. The results indicate that for the proper modeling of performance of the system the phase change temperature range of the PCM must be accurately known, and should be taken into account.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 34, Issue 7, July 2009, Pages 1765–1773
نویسندگان
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