Heat regenerator

Abstract

A heat regenerator comprising at least one matrix made of a refractory material, to ensure the storage and recovery of heat. The matrix includes at least one through-channel capable of enabling the circulation of a fluid, said channel comprising at least two projections projecting into the space defined by said channel, said projections being positioned on two opposite surfaces of the channel.

1 . A heat regenerator comprising at least one matrix made of a refractory material, in order to ensure the storage and recovery of heat, said matrix comprising at least one through channel allowing the circulation of a fluid, said channel comprising at least two projections projecting into the volume defined by said channel, said projections being positioned on two opposite surfaces of the channel, the at least two projections being spaced apart by a distance P between projections from 1 to 5 tunes the channel length. 
     
     
         2 . The heat regenerator of  claim 1 , wherein the volume defined by the at least one channel amounts to from 30 to 50% of the total matrix volume. 
     
     
         3 . The heat regenerator of  claim 1 , wherein the channel has a rectangular or square cross-section. 
     
     
         4 . The heat regenerator of  claim 3 , wherein width  b  of the channel is in the range between 4 and 15 millimeters, and in that length  L  of the channel is in the range between 4 and 15 millimeters. 
     
     
         5 . The heat regenerator of  claim 1 , wherein it comprises at least two substantially parallel channels separated from each other by a distance  c  between 2 and 15 millimeters, advantageously equal to 4 millimeters. 
     
     
         6 . The heat regenerator of  claim 1 , wherein it comprises at least one channel having a height R in the range between 5 and 50 meters. 
     
     
         7 . A use of the heat regenerator of  claim 1  in a heat storage and recovery installation comprising at least one fluid admission orifice. 
     
     
         8 . The heat storage and recovery installation of  claim 7 , wherein the lateral surfaces of the regenerator are thermally insulated. 
     
     
         9 . The heat storage and recovery installation of  claim 8 , wherein it comprises a grid interposed between the fluid admission orifice and the opening of the regenerator channels.