Abstract: The invention concerns a boiler adapted to oxycombustion (30) comprising a combustion chamber (31), a water heater (33) and a vaporizer (38, 40), wherein the combustion chamber includes at least partly the water heater (33). The invention also concerns an oxycombustion method with hot water generation, comprising heating cold water with the oxycombustion flame into a heated fluid. The inventive method is advantageously implemented in the inventive device.

Abstract: The invention relates to a method for improving heat and mass transfers to and/or through a wall, and if need be, to such a method applied to a permeable wall. The invention also concerns a wall and conductive material pair having improved heat and mass transfer characteristics. The method of the invention is useful for all techniques requiring both heat transfer and flow of gaseous phase to or through a wall.

Abstract: A device is described for feeding bars and tubes into a treatment furnace. The device comprises a rotary drum positioned in front of a long horizontal opening provided in the sidewall of the furnace for receiving a bar and introducing it into the furnace through the opening. The device is characterized by a pair of arms which are articulated around an axis outside the furnace and parallel with the drum and which are designed to receive the bars supplied by the drum and to lay them gently down in the furnace, e.g. on the walking beams of a walking beam furnace.