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The design of a filter pump

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Summary

The flow of fluids in a filter pump is analysed. The ultimate minimum pressure attainable with the pump is correlated with the nozzle diameter and certain geometric ratios involved in the pump design. Various factors influencing the performance of the pump are discussed.

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Abbreviations

Subscript 1:

refers to conditions at plane ‘1’

Subscript 2:

refers to conditions at plane ‘2’

Subscript w :

refers to water

Subscript g :

refers to gas or air

Subscript 0:

refers to the nozzle

D 0 :

nozzle diameter

M :

molecular weight of gas or air

P :

pressure

Q :

volumetric flow rate

S 0 :

cross-sectional area of nozzle

S′ 0 :

cross-sectional area of the annulus between nozzle and throat

S 1 :

total cross-sectional area of throat: S 0+S′ 0

v :

velocity

\(\bar \upsilon\) :

time-smoothed velocity

〈v〉:

average velocity

x :

ratio S 0/S 1 (vide text)

y :

ratio S 1/S 2 (vide text)

k :

ratio Q w1/Q g1 (vide text)

ρ :

density

\(\bar \rho\) :

mean density

w :

mass rate of flow

References

  1. Bird, R. B., W. E. Stewart and E. N. Lightfoot, Transport Phenomena, J. Wiley, New York, 1960.

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  2. Rumford, F., Private suggestion.

  3. Griffen, E. and A. Maraszew, The Atomization of Liquid Fuels, Chapman & Hall, London, 1953.

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  4. Folsom, R. G., Chem. Engg. Progress 44 (1948) 765.

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  5. Perry, J. H. (Ed.), Chemical Engineer's Handbook, pp. 401, 406, McGraw-Hill, New York, 1950.

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Authors and Affiliations

  1. Indian Institute of Technology, Hauz-Khas, New Delhi, India

    V. Ramakrishna

Authors
  1. V. Ramakrishna
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Ramakrishna, V. The design of a filter pump. Appl. sci. Res. 13, 260–268 (1964). https://doi.org/10.1007/BF00382053

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  • DOI: https://doi.org/10.1007/BF00382053

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