. The Locomotive . difficult to see how the temperature necessary for ignitionwas produced. On the other hand it may be that the necessary condi-tions were produced and that this accident did result from the explosiveproperty of ammonia gas. It is also possible that the explosionresulted from the ignition of oil vapor in the crank case although thiswould also require the presence of a high enough temperature toproduce combustion. In connection with this accident and as further evidence of theinflammability of ammonia we desire to call attention to a disastrous 242 THE LOCO^IOTIVE [October, fir
. The Locomotive . difficult to see how the temperature necessary for ignitionwas produced. On the other hand it may be that the necessary condi-tions were produced and that this accident did result from the explosiveproperty of ammonia gas. It is also possible that the explosionresulted from the ignition of oil vapor in the crank case although thiswould also require the presence of a high enough temperature toproduce combustion. In connection with this accident and as further evidence of theinflammability of ammonia we desire to call attention to a disastrous 242 THE LOCO^IOTIVE [October, fire which took place at the Syracuse Cold Storage Company ofSyracuse, N. Y. on July 13th, 1921. This, it was said, resulted froman ammonia pipe that burst, filling the room with the gas whichbecame ignited by the spark produced when the switch was opened tostop the electric motor driving the machinery. It was reported thatfive men were injured in fighting the fire and that the propertydamage amounted to over $50, Wrecked Ammoxia Compressor. Explosion of an Open Feed Water Heater. WHEN is an open heater not an open heater? Therecent explosion of a feed water heater of this type will serveto show that there is a possibility, through faulty pipeconnections, for such equipment to become closed and capable ofdoing severe damage. I92I.] THE LOCOMOTIVE 243 To &acK Pressor^ Valva i HaotinqSvatgm C.«hocjst from Enqinc yj Oote Valve. Drip from MiqhProssare Stcom Lino. ^ Pipe Connections to Heater.
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