Comparative analysis of the international and domestic design dependencies for the hydraulic calculation of metal water pipes with internal deposits

Summary

In a specific context a comparative analysis of the standardized European design dependence for the hydraulic calculation of metal water pipes with a diameter of 400 mm was carried out with the empirical formula of Professor F. A. Shevelev updated by the authors for steel pipes with deposits on the inner pipe surface. A significant discrepancy between the values of the characteristics of the hydraulic potential of pipes is shown and the reasons for the discrepancy are established. For the given example, graphs have been constructed showing the difference in the values of the hydraulic slope of the pipes at different flow rates.

Key words

hydraulic design , steel water pipes , deposit layer , design dependencies , comparison of the results