Method for melting steel

A method for melting steel in an electric arc furnace (EAF), said method including steps of

• providing a hot heel in the EAF,
• loading metal scrap into the EAF, and
• melting the metal scrap in the EAF,
• wherein a mass of the hot heel provided is according to a formula:
• m
• h
• =
• R
• ⁢
• (
• T
• m
• -
• T
• s
• )
• ⁢
• C
• p
• s
• (
• T
• h
• -
• T
• m
• )
• ⁢
• C
• p
• l
• +
• Q
• ⁢
• m
• s
• where mh is the mass of the hot heel provided, ms is the mass of an initially loaded scrap that is beyond a surface of the hot heel, Tm is the melting temperature of the scrap, Ts is the temperature of the scrap at loading thereof, Th is the temperature of the hot heel at the loading of the scrap, Cps is the specific heat capacity of the scrap, Cpl is the specific heat capacity of the hot heel, Q is the specific melt heat for the scrap and R is a coefficient that is at least 0.75, wherein electromagnet stirring (EMS) is applied to at least the melting step, and wherein the mass of the hot heel provided is calculated by a process and control device using stored and/or measured values for ms, Tm, Ts, Th, Cps, Cpl, Q, and R applied to the formula.