کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8961672 | 1646504 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New salt hydrate composite for low-grade thermal energy storage
ترجمه فارسی عنوان
ترکیبی از هیدرات نمک جدید برای ذخیره انرژی کم انرژی درجه حرارت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
This study aims to develop a new salt-based thermochemical composite for long-term storage of low-grade thermal energy which enables overcoming mismatch between energy demand and supply. The energy density and dehydration behaviour of five different salts; Al2(SO4)3·18H2O and MgSO4·7H2O, CaCl2·6H2O, MgCl2·6H2O, and SrCl2·6H2O are examined. Subsequently, the performance of two low cost host porous structures; expanded clay and pumice, impregnated with the most suitable salt for storing low-grade thermal energy is studied over a few number of cycles using a lab-scale packed bed reactor. The results showed that SrCl2·6H2O has the highest energy density and lowest dehydration temperature so that >80% of its energy density can be stored at <90â¯Â°C. Thermal cycling the composite materials revealed that up to 29â¯kWh/m3 and 7.3â¯kWh/m3 energy can be stored using expanded clay-SrCl2 (40â¯wt%) and pumice-SrCl2 (14â¯wt%), respectively. However, the performance of expanded clay dropped sharply over four cycles while the generated power using pumice composite was sustained almost constant over ten cycles. Although pumice-SrCl2 is a promising composite in terms of cyclability, further research is required to improve its energy storage capacity to make it attractive for large scale applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 164, 1 December 2018, Pages 194-203
Journal: Energy - Volume 164, 1 December 2018, Pages 194-203
نویسندگان
Abbas Mehrabadi, Mohammed Farid,