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 417
able based on tests witha constant opening, as previously shown. Therefore to determine the total pressure rating for ex.\:mple showing application OF CUmES.Problem. Determine size of fan, revolu-tions per minute and brake horsepower re-quired to deliver 30,000 cubic feet perminute against a static… … point to the intersection of that fan workingnearest 50^ ratio opening at 2.5 S. P.,which in this case is fan Xo. 8 (foUow dashUnes on curves). From this point projecthorizontally to intersect 2.5 S. P. curve andfrom thence upward parallel to horsepowerhnes to intersect fan No. 8 at which pointread…
Building · Heating · Ventilation
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