کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6682352 | 501846 | 2016 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermo-mechanical parametric analysis of packed-bed thermocline energy storage tanks
ترجمه فارسی عنوان
تجزیه و تحلیل پارامترهای حرارتی مکانیکی تانک های ذخیره انرژی ترموکلاین
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کلمات کلیدی
ذخیره انرژی حرارتی، ترموکلاین، قدرت خورشیدی متمرکز، چرخش حرارتی، مدل سازی عددی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
A packed-bed thermocline tank represents a proved cheaper thermal energy storage for concentrated solar power plants compared with the commonly-built two-tank system. However, its implementation has been stopped mainly due to the vessel's thermal ratcheting concern, which would compromise its structural integrity. In order to have a better understanding of the commercial viability of thermocline approach, regarding energetic effectiveness and structural reliability, a new numerical simulation platform has been developed. The model dynamically solves and couples all the significant components of the subsystem, being able to evaluate its thermal and mechanical response over plant normal operation. The filler material is considered as a cohesionless bulk solid with thermal expansion. For the stresses on the tank wall the general thermoelastic theory is used. First, the numerical model is validated with the Solar One thermocline case, and then a parametric analysis is carried out by settling this storage technology in two real plants with a temperature rise of 100 °C and 275 °C. The numerical results show a better storage performance together with the lowest temperature difference, but both options achieve suitable structural factors of safety with a proper design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 179, 1 October 2016, Pages 1106-1122
Journal: Applied Energy - Volume 179, 1 October 2016, Pages 1106-1122
نویسندگان
Ignacio González, Carlos David Pérez-Segarra, Oriol Lehmkuhl, Santiago Torras, Assensi Oliva,