TY - JOUR ID - 243774 TI - Simulation of water-circulating path and heat transfer in blast-furnace tuyeres with simple and spiral double-chamfer design JO - International Journal of Iron & Steel Society of Iran JA - IJISSI LA - en SN - 2981-0388 AU - Sharifi, Mohammad AU - Parchami Borjoui Raky, Sirus AU - Parchami Borjoui Raky, Soroush AU - Mardani, Salman AD - Research and Development Unit of Parchamdaran Sanat Sepahan company, Isfahan, Iran Y1 - 2021 PY - 2021 VL - 17 IS - 1 SP - 21 EP - 27 KW - tuyeres KW - air-blowing nozzle KW - blast furnace KW - spiral water-circulating design KW - Heat Transfer DO - 10.22034/ijissi.2021.243774 N2 - Tuyeres or air-blowing nozzles are considered sensitive parts of blast furnaces responsible for blowing hot air into the furnace, and their proper operation has a direct effect on the iron-melting process in the blast furnace. These parts are usually damaged or destroyed by exposure to high temperatures, radiation, slag or molten iron scattering, improper design of the water-circulating system, low thermal conductivity, operator problems, etc.In this paper, the two simple and spiral water-circulating designs are simulated and examined in heat transfer and fluid pressure drop under furnace conditions. Based on the results obtained from the spiral design, water is directed to the critical areas of the body at a lower temperature and passes through these areas quicker than the simple design.; Additionally, the cooling power of the spiral design is more efficient for the body of the tuyeres and will help prevent this part from burning in these areas. According to the simulation, the spiral design’s water pressure will drop slightly further than the simple design. UR - https://journal.issiran.com/article_243774.html L1 - https://journal.issiran.com/article_243774_574c00d1fc4217005e105931cbe198da.pdf ER -