Method for operating a combustion arrangement and combustion arrangement

A method for operating a combustion arrangement, the combustion arrangement including

• at least one combustion chamber arranged in a double-walled housing,
• at least one inlet configured to supply a fuel to the at least one combustion chamber,
• at least one outlet for letting exhaust air from the at least one combustion chamber, and
• at least one air channel configured to feed supply air into the housing,
• wherein the housing includes an inner wall and an outer wall which jointly define an intermediate space between each other,
• wherein an air inlet opening that cooperates with the at least one air channel is arranged in an upper end section of the outer wall so that the supply air is feedable through the at least one air channel into the intermediate space,
• wherein the intermediate space and the at least one combustion chamber that is enveloped by the inner wall are flow connected so that the supply air conducted into the intermediate space is transferable into the at least one combustion chamber,
• the method comprising the steps:
• introducing the supply air into the upper end section of the housing through the at least one air channel;
• guiding the supply air in the intermediate space towards a lower end section of the housing;
• introducing the supply air into the at least one combustion chamber;
• and
• initially running the supply air out of the housing through an air conduit that cooperates with an air outlet opening arranged in the outer wall;
• and
• thereafter running the supply air into the at least one combustion chamber at least indirectly.