3. Power of resistance ovens

The evaluation of the heat balance, taking into account the characteristics of each component and configuration, leads to the following figures for a heating cycle or continuous operation:

• the energy stored in the load ;

• energy stored in the supports ;

• stored energy and heat flux transmitted by the walls, vault and hearth;

• heat flow and energy lost through joints, air inlets/outlets and door openings;

• heat flux lost through atmospheric heating and thermal bridges (including cold passages in heating elements);

• the heat flow lost through the cooling water.

In this way, we can consider a heat balance evaluated either in terms of energy, in...