A manual of heating and ventilation, in their practical application, for the use of engineers and architectsEmbracing a series of tables and formulas for dimensions of heating flow and return pipes, for steam and hot water boilers, flues, etc., etc . d be smaller than the pipes in coils. Pipes must be kept scrupulously clean and free from shavings,dirt, etc., or circulation will be retarded. HEATING. 47 Expansion and contraction in the pipes must be providedfor. The advantages of hot water over steam are : less cost of fuel;no danger of explosion ; requires less repairs; the temperaturein pipe
A manual of heating and ventilation, in their practical application, for the use of engineers and architectsEmbracing a series of tables and formulas for dimensions of heating flow and return pipes, for steam and hot water boilers, flues, etc., etc . d be smaller than the pipes in coils. Pipes must be kept scrupulously clean and free from shavings,dirt, etc., or circulation will be retarded. HEATING. 47 Expansion and contraction in the pipes must be providedfor. The advantages of hot water over steam are : less cost of fuel;no danger of explosion ; requires less repairs; the temperaturein pipes is maintained 6 to 8 times longer than in steam pipes,after the fire is extinguished; and another great advantage is,fhat the temperature in the pipes can be increased or dimished,by reducing the flow of the hot water. DIAMETER OF PIPES — BORE. Connection Pipes to Coils. UPPER STORY OF A , DIRECT RADIATION. COIL SURFACE. DIAM. OF PIPS. SECTIONAL AREA. 6o sq. ft. or less. ^ [ inch. sq. inch. 100 ii I (C 175 n I^ 250 « ii I^ \. -600 ii 2 it 3-14 For each successive lower story, increase tlie cross sectionalarea of pipe by 15% over that in the preceding story. BASEMENT OR CELLAR OP A BUILDING, INDIRECT The sectional area of a branch pipe must equal the area ofall the connections, and the area of a main pipe must equal thearea of all branches. 48 HEATING AND VENTILATION. The return-pipes to a coil or series of coils must have thef^-me diameter as the respective flow-pipes; for example see Fig. 22.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectventila, bookyear1901
