Method for the Open-Loop and/or Closed-Loop Control of the Gas Thoroughput in the Baking Chamber of a Baking Device

A method for controlling and/or closed-loop controlling the gas flow rate in the baking chamber (1) of a baking device (2) in which an endless chain of baking tongs (3) is moved along a closed path through a pre-head opening (4) from a baking chamber (1) into a pre-head (5) and through a pre-head opening (4) from the pre-head (5) into the baking chamber (1) for producing baked products, the method comprising:

• controlled introduction of a fuel volume flow (6) and a primary air volume flow (7) into the baking device (2), wherein the fuel is combusted in a heating arrangement (8) with the primary air of the primary air volume flow (7) for heating the baking chamber (1);
• optional controlled introduction of a convection air volume flow (9) via a convection fan, wherein the convection air volume flow (9) flows through the baking chamber (1) for creating a forced convection flow inside the baking chamber (1), the convection air volume flow optionally flowing through the baking chamber as secondary air;
• and
• controlled removal by suction of a suction volume flow (10) from the baking chamber (1) by means of a suction fan, wherein
• a volume balance of the volume flow introduced into the baking chamber (1), the expanding volume flow (11) expanding inside the baking chamber (1) and the volume flow removed by suction from the baking chamber (1) are determined for controlling the suction volume flow (10) and/or the convection air volume flow (9),
• the expanding volume flow (11) expanding inside the baking chamber (1) of the volume balance comprises the volume flow of combustion components (13) generated by the combustion of the fuel volume flow (6) with the primary air volume flow (7) and a baking steam volume flow (14) leaving the baking mass during a baking thereof, and
• the power of the suction fan and/or the power of the convection fan is/are controlled in such a manner that the volume flow removed by suction is greater than or equal to the sum of the introduced volume flow and the expanding volume flow (11) expanding inside the baking chamber (1) so that the introduced volume flow and the expanding volume flow (11) expanding inside the baking chamber (1) are removed by suction by means of the suction fan.