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Title: Roughness Coefficient of a Highly Calcinated Penstock
Authors: Çelebioğlu, Kutay
Issue Date: 2019
Abstract: When highly calcinated water is transferred through the penstock of a hydropower plant it leaves a residue on the pipe surface. Accumulated residue over time causes a change in the roughness of the pipe surface thus leads to friction losses in the system. The effect is a change in head and discharge relation for the turbines. A multimethodology is proposed for determining the apparent surface roughness value (?) by means of friction factor f and measuring arithmetic mean deviation of the roughness profile (Ra), root mean square roughness (Rq) and peak and valley roughness (Rz). It is found that a surface roughness value (?) of 0.3mm can be used for calcinated surfaces which is much higher than steel surfaces but smaller than a concrete surface.
URI: https://doi.org10.18400/tekderg.447265
ISSN: 1300-3453
Appears in Collections:Rektörlük / Rectorate
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
TR Dizin İndeksli Yayınlar / TR Dizin Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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