کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4990326 1368110 2018 10 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Research PaperDynamic performance analysis of solar organic Rankine cycle with thermal energy storage
ترجمه فارسی عنوان
تجزیه و تحلیل عملکرد پویای چرخه رابینین آلی خورشیدی با ذخیره انرژی حرارتی
کلمات کلیدی
ORC؛ ذخیره انرژی حرارتی؛ عملکرد دینامیک؛ اختلال؛ انرژی خورشیدی؛
ORC; Thermal energy storage; Dynamic performance; Disturbance; Solar energy;
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی

•A dynamic model of SORC was developed considering time-varying solar radiation.•The factor FSR was defined to reflect the effect of TES on dynamic impact.•Resonance occurs by the combined effect of TES capacity and solar disturbance.

This paper discusses the dynamic performance in a small-scale solar organic Rankine cycle (SORC) with thermal energy storage (TES) considering solar disturbance. A dynamic model of SORC is developed. The factor FSR (Fluctuation Suppression Ratio) is defined to reflect the effect of TES on suppressing the dynamic impact. The dynamics of the SORC are found to contain resonance characteristics. With the interaction between solar disturbances and system thermal inertia (mainly determined by TES capacity), the energy superposition could cause dynamic resonance. In order to study the dynamic performance of the SORC, the influence factor including TES capacity, solar fluctuation (period, amplitude, average solar) and evaporation temperature were analysed, while FSR and the total system efficiency were the indicators which represent the system stability and performance respectively. The simulation result shows that within a certain solar period, there is a specific TES capacity range leading to resonance. The proper TES capacity should be selected according to local solar fluctuations to effectively suppress dynamic impact in the initial design phase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 129, 25 January 2018, Pages 155-164
نویسندگان
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