. Electric railway journal . Sectional View of Heater Installed in Vestibule Heater of Car line beginning at the heater end because this arrangement per-mits the emission of equal amounts of air throughout the Steady volume of hot air passes over the floor and thenrises to the ventilators, thereby insuring an even distributionof heat, dry floors and a complete change of air every live tosix minutes. The fact that the bad air never has a chance toremain in the car is one of the features of this system. It might be supposed that the draft at the outlets would bestrong enough to inconveni
. Electric railway journal . Sectional View of Heater Installed in Vestibule Heater of Car line beginning at the heater end because this arrangement per-mits the emission of equal amounts of air throughout the Steady volume of hot air passes over the floor and thenrises to the ventilators, thereby insuring an even distributionof heat, dry floors and a complete change of air every live tosix minutes. The fact that the bad air never has a chance toremain in the car is one of the features of this system. It might be supposed that the draft at the outlets would bestrong enough to inconvenience the passengers sitting overthem, but this is not the case. The blower pressure is sufficientto allow the passengers on the other side of the car to enjoyits benefit. The duct outlets in this installation are screenedto prevent passengers from throwing rubbish into them. Underlongitudinal seats, the duct is placed back far enough to pre-vent its being kicked by the passengers. Where cross-seats. Hot-Air Duct Openings Under Seats are used, the duct is placed alongside each seat in a magnesia-lined wooden box. Although the blower motor is rated at l/% hp, its full capacityhas not been required in practice. Under operating condi-tions, the motor takes .166 amp. at 500 volts, which means anelectric operating cost of about cents for a 20-hour daywith power at 2 cents a kw-hour. The same heater in continu-ous operation will burn 40 lb. of hard coal in 20 hours, whichat $ per ton means a fuel cost of 12 cents a day. Thusthe total operating changes would not exceed cents a day. HEATER DETAILS. In view of the importance of having air tight joints hi thisheater to make the air circulating system effective, the follow-ing details may be of interest. The stove, which is on the in-side of the hot air chamber, is of ordinary type except that itlias a 12 in. diameter corrugated firepot. The grate is shakenwith a side movement and can be rocked or dumped whendesired. The base
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
