Abstract: A gasified-gas generation system includes: a combustor that heats a fluid medium; a gasifier into which the fluid medium heated by the combustor is introduced and which gasifies a gasification material with heat of the fluid medium so as to generate a gasified gas; and a cooling mechanism that cools the fluid medium that flows between the gasifier and the combustor. The fluid medium circulates between the combustor and the gasifier. The fluid medium and a residue of the gasification material are introduced from the gasifier into the combustor, and the combustor burns the residue to heat the fluid medium.

Abstract: Thermocouples are suspended to extend vertically and centrally of a coal reservoir to sense temperatures of coal at vertically plural points. When at least one of temperatures of coal sensed exceeds a preset temperature, a purge command signal is output by a controller to an inert gas valve. When a temperature increase rate of at least one of the coal temperatures sensed exceeds a preset rate, a water spraying command signal is output by the controller to a water spraying valve.