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شبیهسازی عددی ناحیه پخت کوره گندلهسازی مطالعه موردی: مجتمع صنعتی معدنی گل-گهر سیرجان | ||
| مدل سازی در مهندسی | ||
| دوره 22، شماره 78، آبان 1403، صفحه 249-257 اصل مقاله (1.1 M) | ||
| نوع مقاله: مقاله مکانیک | ||
| شناسه دیجیتال (DOI): 10.22075/jme.2024.30360.2442 | ||
| نویسندگان | ||
| محمدجواد محمودآبادی* 1؛ محسن طالبی پور2 | ||
| 1دانشیار، دانشکده مهندسی مکانیک، دانشگاه صنعتی سیرجان، سیرجان، ایران | ||
| 2کارشناس ارشد، دانشکده مهندسی مکانیک، دانشگاه صنعتی سیرجان، سیرجان، ایران | ||
| تاریخ دریافت: 07 اردیبهشت 1402، تاریخ بازنگری: 25 بهمن 1402، تاریخ پذیرش: 29 بهمن 1402 | ||
| چکیده | ||
| در این پژوهش، به شبیهسازی عددی مسیر عبور جریانهای داغ در ناحیه پخت کوره گندلهسازی مجتمع معدنی صنعتی گلگهر سیرجان پرداخته شدهاست. در این راستا، از نرمافزار اوپنفوم که از برنامههای شیءگرا و بر پایه یک زبان برنامهنویسی مناسب است بهره بردهاست. محدوده مورد بررسی شامل صفحه خروجی مشعلها، لولههای داونکامر، محفظه احتراق، فضای درون کوره و ویندباکس بوده و بستر گندله به صورت متخلخل فرض شدهاست. جریان مورد نظر به صورت پایا، تراکمپذیر و مغشوش فرض شدهاست که از بستر گندله با درصد تخلخل یکنواخت عبور میکند. برای مدلسازی جریان مغشوش از یک مدل دو معادلهای مناسب بهره گرفته شدهاست. علاوهبراین، دیوارههای کوره عایق، گرادیان دما و فشار روی دیوارهها صفر و شرط عدم لغزش برای شرط مرزی سرعت فرض شدهاند. نتایج حاصل از شبیهسازی حاکی از انحراف جریانهای داغ گازی به سمت دیوارههای جانبی بوده که میتواند به عنوان یک عامل مهم در خوردگی و کاهش عمر آنها تلقی شود. | ||
| کلیدواژه‌ها | ||
| شبیهسازی عددی؛ نرمافزار اوپنفوم؛ محیط متخلخل؛ جریان پایا؛ جریان تراکمپذیر؛ جریان مغشوش | ||
| عنوان مقاله [English] | ||
| Numerical Simulation of Pellet Furnace Firing Area Case Study: Golgohar Mining Industrial Complex in Sirjan | ||
| نویسندگان [English] | ||
| Mohammad Javad Mahmoodabadi1؛ Mohsen Talebipour2 | ||
| 1Associate Professor, Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, Iran | ||
| 2MSc, Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, Iran | ||
| چکیده [English] | ||
| In this research, numerical simulation of the hot gas flow in the firing area of the pelletizing furnace in Golgohar mining-industrial complex is studied. In this regard, Open-Foam software as an objective-oriented program and based on a proper programming language is used. The considered area includes the outlet plane of the burners, the down comer pipes, the combustion chamber, the space of the furnace and the wind box, while the pellet bed is regarded as a porous media. The investigated flow is assumed as steady-state, compressible and turbulent that passes through the pellet bed having a uniform porosity percentage. In order to model the turbulent flow, an appropriate two-equations approach is employed. In addition, the walls of the furnace are assumed to be insulated, the gradients of the temperature and pressure on the walls are considered to be zero, and non-sliding condition is regarded for the boundary condition of the velocity. The simulation results illustrate that the hot gasses are diverted on the sidewalls, which could be considered as an important factor for corrosion and decreasing their life. . | ||
| کلیدواژه‌ها [English] | ||
| Numerical simulation, Open-Foam software, Porous media, Steady-state flow, Compressible flow, Turbulent flow | ||
| مراجع | ||
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