Combustion device having a flameless combustion chamber, use of such a device and electricity production or energy cogeneration apparatus comprising such a device

A combustion device for an electricity production or energy cogeneration apparatus, the electricity production or energy cogeneration apparatus comprising a gas turbine supplied by the combustion device, the combustion device being suitable for a flameless combustion regime, the combustion device comprising:

• an outer tube;
• a combustion tube forming a combustion zone for flameless combustion of a mixture of oxidizing air and fuel, the combustion tube being concentric with the outer tube, in communication with fuel-injection means, and in communication with air-injection means arranged at a first end of the combustion tube, referred to as a front end, and which is closed by an end wall at a second end of the combustion tube, referred to as a rear end, the end wall being secured to the combustion tube and fluid-tight,
• the fuel-injection means comprising at least a first orifice, referred to as a fuel-injection orifice;
• the air-injection means comprising at least a second orifice, referred to as an air-injection orifice;
• means for discharging combustion gases;
• and
• a closure wall covering the front end of the combustion tube and connected to the air-injection and fuel-injection means,
• wherein
• the combustion tube is substantially a cylinder with a single internal volume configured to allow the combustion gases to recirculate in the flameless combustion regime,
• wherein the means for discharging the combustion gases comprise an opening arranged at the front end of the combustion tube, the opening being delimited, on one hand, by one end of a longitudinal cylindrical wall of the combustion tube proximal to the closure wall and, on another hand, by the closure wall, a flow and discharge of the combustion gases being between the longitudinal wall and the outer tube, and
• wherein the combustion device further comprises a tubular sleeve arranged concentrically between the combustion tube and the outer tube, connected to the closure wall and positioned facing the opening so as to form an annular recombination zone, to extend a residence time of the combustion gases exhausted via the opening.