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Mathematical modelling of divided blast cupola
Author(s) -
Viswanathan Nurni Neelakantan,
Srinivasan Mandayam Nayachavadi,
Lahiri Ashok Kumar
Publication year - 1997
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199701777
Subject(s) - cupola , row , combustion , mathematics , chemistry , materials science , metallurgy , computer science , organic chemistry , database
A pseudo 2‐D mathematical model has been developed to simulate a cupola with one row and two rows of tuyère. The simulation results predicted higher spout temperature and combustion ratio for cupola with two rows of tuyère compared to that with one row. Further, the model has been used to study the effect of the distance of separation between the two rows of tuyère on cupola performance. The computed results shows that the spout temperature increases with tuyère level separation and attains the maximum at an optimum distance of separation between two rows of tuyère. Above the optimum, the spout temperature starts decreasing. The exit gas temperature and combustion ratio increases monotonously with the increase in tuyère level separation. These results agree well with the reported experimental observations. The mechanism behind the improved cupola performance with two rows of tuyère has been deduced from the computed temperature and composition profiles inside the cupola.