| 摘要 |
Method of supplying heat to a chamber (10) wherein first (12) and second (13) burners are arranged to direct hot products of combustion into the chamber, fuel (15) is supplied to said burners alternately, during the supply of fuel to the first (12) of said burners, air (16) is supplied through the first burner (12), hot products of combustion pass from the chamber into the second burner (13), heat is extracted from products of combustion which have left the chamber and is stored in heat storage means (26) and wherein, during the supply of fuel to the second burner (13), air is passed through the heat storage means (26) associated with that burner to receive heat therefrom, the heated air being mixed with fuel by the second burner (13) and hot products of combustion passing from the chamber through the first burner (12) and heat being extracted from the products of combustion by heat storage means (26) associated with the first burner (12). The chamber may contain workpieces which are to be heated. |
