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UDC 628.147:658.26.004.18

Orlov V. А., Shlychkov D. I.

Electric power conservation in applying trenchless technologies of pipeline rehabilitation

Summary

Economic aspects of different technologies of water pipeline trenchless renovation are presented alongside with the determination of an optimal technology by minimum electric power consumption. As a criterion of evaluating electric power conservation in the reconstruction of pipelines with trenchless methods a concept of annual electric power conservation per unit of pipe length is introduced. During case studies the values of this parameter for different renovation technologies were calculated and compared. On the basis of the estimated data it was established that the effect of specific resistance (actual level of pipe inner surface roughness) is a determinant of power conservation in the process of water transportation by water pipelines.

Key words

pipeline , trenchless technology , renovation , power consumption

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