This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...in the act of pumping, the only addition to the net H.P. is the work due to piston friction. The only way to effect this object is to move the slide valve by the direct pressure of the motive water. When transmitted power is used for sewage pumping the area to be drained can be divided into several districts, each ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...in the act of pumping, the only addition to the net H.P. is the work due to piston friction. The only way to effect this object is to move the slide valve by the direct pressure of the motive water. When transmitted power is used for sewage pumping the area to be drained can be divided into several districts, each being provided with a separate pumping station, to which the motive power is transmitted from one central pumping station. The advantages. to be gained by collecting the sewage at several pumping stations are--(1) Only small pipe sewers at depths sufficient to drain the houses will be necessary. (2) Whatever the natural configuration of the ground may be, good gradients can always be obtained. (3) By the use of automatic pumps, which pump the sewage as fast as it flows, the sewers are always kept running free, and if the automatic action is secured, as it ought to he by the filling of the pump itself, no reservoirs for the storage of the smallest quantity of sewage will be We have seen in Chapter III. that by properly appor-Direct appli-, i c.i, i-i, i cation of com tionmg the size oi tne pipes to the power required, this pressed air to power, whether air or water is used as the medium, can PumPlns r sewage. be transmitted in pipes of moderate size a distance of Special fully 6000 yards, say 4 miles, without entailing a greater loss by pipe friction than 5 per cent, of the initial pres-sure. In the case of water, the only other points to be considered are leakage and the efficiency of the executive pump, but in the case of air we have also to consider the following special points: --(1) Possible fall of temperature below the initial temperature of the air before compression. (2) Effect of variation of lift at the different pumping stations. (3) Amoun
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Fine. Sewn binding. Cloth over boards. 88 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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New. Sewn binding. Cloth over boards. 88 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
