. Railway mechanical engineer . the efficiencyof the locomotives. One means of doing this is by the ap-])lication of ftedwater heaters to all new locomotives witha plan in progress of a])plying them to all existing locomo-tives regardless of type or service. The success the Germanrailwavs have had with the use of feedwater heaters haswarranted this development. Whereas tlie thennal efficiencyol)tained is between 10 and 12 per cent there is a claim foran oxerall economy from 20 to 25 per cent. This feedwater heater is known as the Knorr luater. Itis of the tubular type taking exhaust steam from
. Railway mechanical engineer . the efficiencyof the locomotives. One means of doing this is by the ap-])lication of ftedwater heaters to all new locomotives witha plan in progress of a])plying them to all existing locomo-tives regardless of type or service. The success the Germanrailwavs have had with the use of feedwater heaters haswarranted this development. Whereas tlie thennal efficiencyol)tained is between 10 and 12 per cent there is a claim foran oxerall economy from 20 to 25 per cent. This feedwater heater is known as the Knorr luater. Itis of the tubular type taking exhaust steam from the cylindersand auxiliaries. The feedwater is forced through it by apump located between the heater and the tank, which thuskeeps the heater under Ijoiler pressure. It has been esti-mated that these heaters will more than pay for themselvesin the economy they produce under the present price of fuelwithin one year. Freight Cars to be Equipped With Compressed Air Brakes.—As indicated bv the manner in which the German railways. Railway Entrance to Knipps Plant at Essen are applying feedwater heaters to their locomotives, the offi-cers are not hesitating to spend money in order to save moneyregardless of the fact that the roads are now Ijcing operatedunder such heavy deficits. In addition to im|)roving thelocomotives a very extensive program is lieing carried outin e(iuipping the freight cars with Kunse-Knorr automaticair brakes. This is a compressed air brake which is stand-ard on the Prussian system. A program involving the ex-penditure of 260,000,000 marks for this purpose has beenstarted. One-third of the existing cars on the Prussian sys-tem, or about 175,000 cars, have been equipped with thisbrake and all new cars will be. By 1927 it is planned tohave all freight cars on the Prussian system equipijed. Ithas been estimated that at the end of 10 years a saving of60,000,000 marks will be ol)tained, after having paid forthe cost of the installation, as a result of the saving
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
