Refined methods of calculating loss of pressure in the pressure pipe hydrotransport

Authors

  • V. I. Dengub State Higher Education Establishment “Krivij Rig National University”, V.Matusevicha 11, Krivij Rig, Ukraine, 50050, Ukraine

Keywords:

Hydrotransport, engineering hydraulics, hydraulic size, the method of calculation

Abstract

The initial data for the design and operation of systems of pressure and gravity Hydrotransport granular particles assess sedimentation lagoons and tailings is the value of the hydraulic size of suspended solids. Due to the complex dependence of drag on the particle Reynolds numbers it is necessary to conduct a significant amount of approximate calculations in the absence of the necessary computing techniques. On the basis of the use of the wellknown formula in its current form for calculating the hydraulic size of particles and its mathematical transformation developed and the algorithm approximate calculations above this parameter. Recommended calculation algorithm allows to determine: a) the value of the first approximation; b) order and a series of successive approximations of values ensures the convergence of the calculations in the slightest error. When determining the pressure loss in the pressure lines recommended a graph of the resistance movement of sediment concentration replace the empirical formula of the author.

Author Biography

V. I. Dengub, State Higher Education Establishment “Krivij Rig National University”, V.Matusevicha 11, Krivij Rig, Ukraine, 50050

Cand. Sci. (Tech.), Assoc. Prof., Department of the heat gas supply, water drainage and ventilation

References

Giants M.A. Dynamic channel flow. 3rd ed t.1-2 -. M .: Gostekhizdat 1954-1955g.

Goncharov V.N. Dynamic channel flow. - L .: Gidrometeoizdat 1962, 374s.

Levy I.I. Dynamic channel flow, 2nd ed, -. M .: Gosenergoizdat 1957.

Hydraulics, under the general editorship of prof. I.I. Agroskin, ed. fourth - M .: "Energy", 1964. 352s. with features.

Zegrze A.P. Hydraulic friction loss in canals and pipelines - M .: Stroyizdat 1957, 278s.

Krill S.I. Pressure slurry bear flows. - K .: Naukova Dumka, 1990.

Konstantіnov Y.M., Gіzha O.O. Hydraulics engineering. Textbook for students of higher educational institutions. - K .: Vidavnichy Dim "Slovo", 2006 - 432s.

Published

2016-10-20

Issue

Section

Life Safety