Economical and Technical Effects of Pipe Internal Coating on Hydro Power Generation and the Importance of Head Loss Calculation

Document Type : Original Article

Author

Assistant Professor, Department of agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

10.22125/iwe.2020.120731

Abstract

Considering the vital role of water all over the world particularly in arid areas and the non-uniform distribution of resources and water users, inter basin water transmission projects are becoming more and more important. To economize water transmission projects, using the potential of hydropower energy could be considered an effective option. Gross head and discharge play important roles in potential of power generation. In this paper the importance of gross head considering its effective factors, pipe size, internal coating, are evaluated. The water transmission project from Safaroud dam to Kerman is considered as a case study in which internal coating as the main component of head issue is particularly evaluated as the important criteria to make decision for economic aspects of the projects. Also, using both cement lining (standard and non-standard) and epoxy as internal coating are compared technically and economically. The results show an increase of about 1.2 MW in power generation capacity in case of using epoxy which is caused by decreasing friction factor and head loss. As a result, pipe internal coating and even how implementing has to be considered an important criterion in design and implementation of projects. In addition, considering the long paths in water transmission projects, accuracy of head loss calculation can significantly affect the economic justification of such a projects.

Keywords

References

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Irrigation and Water Engineering
Volume 11, Issue 2 - Serial Number 42
December 2020
Pages 192-203

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