Peningkatan Efesiensi Produksi Electric Arc Furnace Dengan Injeksi Oksigen Untuk Menghemat Biaya Energi Listrik Pada Industri Baja
Abstract: The
highest production in steel making process is the cost of melting in the
Electric Arc Furnace (EAF). The higher the electricity cost , the higher the
production cost would be. Some means have to be done , therefore, in the
melting process, in order to achieve higher efficiency. One of them is by
installing a water cooling panel system at the furnace’s wall and roof. Another
way is by chemical reaction through oxygen injection into EAF. The combination
of the two will result in tap voltage at higher current and long arc setting.
By obtaining higher power factor and long arc, we can achieve higher
productivity and electricity cost saving. Experience and data shows that the
power factor and long arc obtained can save up to 1.9 Kwh per Nm3 oxygen .
Using the data, if oxygen were increased until 30N m3/ton , the fixed
production cost would increased approximately 5 % for every increase of
Rp.100,-/Kwh in electricity cost. Therefore, in order to stabilize the
production cost, energy transformation capacity should be increased to become
130 MVA which is combined with an adequate oxygen injection management
Penulis: Arief Wisnu Wardhana
Kode Jurnal: jptindustridd070058
