کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7206370 1468667 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and numerical investigation into rapid cooling of rock salt related to high frequency cycling of storage caverns
ترجمه فارسی عنوان
تحقیقات تجربی و عددی برای خنک کردن سریع سنگ نمک مربوط به دوچرخه سواری با فرکانس بالا از غارهای ذخیره سازی
کلمات کلیدی
تست مزرعه، افت دما، تنش کششی، مغارهای نمکی، دوچرخه سواری با فرکانس بالا، مدل سازی حرارتی مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
High frequency cycling of salt caverns is becoming common practice to meet the needs of energy markets and to foster underground energy storage. In the case of rapid cooling, tensile stresses and thermally-induced fractures can appear in the surrounding rock, with potential detrimental consequences to the integrity of the storage project. To further investigate the effects of rapid cycles on the integrity of rock salt, a thermo-mechanical test was performed in a salt mine. It consisted in cooling rapidly several times a salt surface of 10 m2 (ΔT=−20 °C in about 8 h). Extensive monitoring allowed tracking the thermo-mechanical response of the rock, including possible fracture creation and propagation. Although more research is needed, the test demonstrated that tensile fracturing due to rapid cooling is possible. Thermo-mechanical modeling allowed reproducing fairly well the location, orientation and timing of the first fracture; indeed, fractures should be avoided to ensure cavern integrity, and therefore knowledge about the critical zones where fractures could appear is sufficient at the design stage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 102, February 2018, Pages 120-130
نویسندگان
, , , , , , , ,