Design of Suction Piping and Deaerator Storage Capacity to Protect Feed Pumps

[+] Author and Article Information
Rodney S. Thurston

Department of Thermal Engineering, Cornell University, Ithaca, N. Y.

J. Eng. Power 83(1), 69-71 (Jan 01, 1961) (3 pages) doi:10.1115/1.3673142 History: Received December 12, 1957; Online January 10, 2012


The effect of transient suction pressure decay on a centrifugal boiler feed pump has been under study by Karassik, et al. Using concepts established by these authors, this paper presents an analytical method for determining the minimum permissible weight of water ratio between the deaerator storage tank and the suction piping to the boiler feed pump. With sufficient capacity this tank is capable of insuring against flashing at the pump’s suction, thereby avoiding cavitation and vapor binding of the pump.

Copyright © 1961 by ASME
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