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IJEMS Vol.13(6) [December 2006] >


Title: Pressure drop for the flow of high concentration solid-liquid mixture across 90º horizontal conventional circular pipe bend
Authors: Verma, Abhai Kumar
Singh, S N
Seshadri, V
Issue Date: Dec-2006
Publisher: CSIR
IPC CodeG01F 1/34
Abstract: Pressure drop across a 90° horizontal bend for fly ash slurry at high concentrations is reported in the present study. The pressure drop across the bend has been measured at five concentrations in the range of 50-65% (by weight) and the data has been analyzed to obtain the relative pressure drop, bend loss coefficient and permanent pressure loss. Measurements show that the relative pressure drop across the pipe bends increases with increase in concentration at low velocity. However, at any given concentration relative pressure drop is independent of velocity over the range tested. The bend loss coefficient at any velocity increases with increase in concentration. The permanent pressure loss increases marginally with concentration and velocity. The contribution of disturbed flow conditions downstream of the bend to the total pressure loss is much less in the case of highly concentrated slurries as compared to that in water.
Page(s): 477-483
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.13(6) [December 2006]

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