Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 174
er the cross-section) in ft. per sec./ = friction coefficient.g = 32.16 (acceleration due to gravity) ft. per sec.2 V2 — = the velocity head, in ft. If the head lost is stated in inches of water, then 12 hxd in which Then K h = the head lost measured in inches of water column.K = density of the… … fncrease 0!am. t /900 Fig. 1 162 POWER PLANTS AND REFRIGERATION Then , 4 L / 72 12 d\ h=fTx{T7ir) • • • (3) If it is desired to use the weight of the medium flowing rather than the velocity, the followingsubstitutions may be made in (3) for round ducts: Q = Volume of flue gases, cu. ft. per sec.W =…
Building · Heating · Ventilation
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