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An inert gas for fighting a fire occurring in an enclosed space is produced by the reaction of ammonia with atmospheric air to produce nitrogen mixed with water vapor which is introduced into the fire in the enclosed space. This fire fighting gas mixture is produced in a small gas turbine having a c

An inert gas for fighting a fire occurring in an enclosed space is produced by the reaction of ammonia with atmospheric air to produce nitrogen mixed with water vapor which is introduced into the fire in the enclosed space. This fire fighting gas mixture is produced in a small gas turbine having a combustion chamber into which ammonia, preferably liquid ammonia, is sprayed. Additionally, water may be sprayed into the combustion chamber to cool the combustion gas to a desired temperature and supplied to the turbine which feeds its exhaust gas to a mixing chamber where a further temperature control may be performed by spraying water into the mixing chamber. The gas output of the mixing chamber is used for the fire fighting.

대표청구항 ▼

[ What is claimed is:] [1.] A method for fighting a fire in an enclosed space comprising the following steps:(a) reacting ammonia (NH.sub.3) with atmospheric air to produce nitrogen (N.sub.2) and water vapor (H.sub.2 O),(b) mixing said nitrogen (N.sub.2) and said water vapor to form a fire extinguis

[ What is claimed is:] [1.] A method for fighting a fire in an enclosed space comprising the following steps:(a) reacting ammonia (NH.sub.3) with atmospheric air to produce nitrogen (N.sub.2) and water vapor (H.sub.2 O),(b) mixing said nitrogen (N.sub.2) and said water vapor to form a fire extinguishing inert gas, and(c) applying said inert gas to said fire for reducing an oxygen content of an atmosphere in said enclosed space to a level insufficient to sustain said fire.