29 تیر 1403
امين شهسوارگلدانلو

امین شهسوارگلدانلو

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه - دانشکده مهندسی - گروه مهندسی مکانیک
تحصیلات: دکترای تخصصی / مهندسی مکانیک
تلفن:
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان
Numerical investigation of a double‐pipe latent heat thermal energy storage with sinusoidal wavy fins during melting and solidification
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
heat transfer, melting, phase change material, solidification, thermal energy storage, wavy fin
پژوهشگران امین شهسوارگلدانلو (نفر اول)، عباس گودرزی (نفر دوم)، پویان طالبی زاده (نفر سوم)، مسلم آریجی (نفر چهارم)

چکیده

With the aim of an efficient thermal energy storage, this study was carried out on the phase change process in a double-pipe latent heat storage system incorporating sinusoidal wavy fins during both melting and solidification and the outcomes were compared with that for smooth and non-finned units. The phase change material is in the outer side while the water (heat transfer fluid) is passed through the inner side which formed a vertical double tube. The investigation on the performance of different wave-amplitudes and wavelengths of the wavy fins lead to the qualification of the best wave profile. The characteristics of the water flow were also examined. The numerical results reflect that, for the best wavy profile, with the wave-amplitude and wavelength of 2 and 1 mm, respectively, the time for melting and solidification reduces by 43.49% and 17.81%, compared with that of the non-finned unit while they are 7.7% and 4.45% compared to the smooth fin case. Furthermore, sensitivity analysis of the Reynolds number and inlet temperature of water indicates that higher Reynolds number and the temperature difference between the inlet water and melting point result in a time reduction in the charging and discharging.