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Self-Lubricating Bushing Testing for John Day Dam Ka plan Turbine Replacement

Technical Report ·
DOI:https://doi.org/10.2172/2563423· OSTI ID:2563423
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  1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
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The goal of this testing program is to find suitable self-lubricated alternatives to replace the in use oil lubricated grooved-bronze bushing in Kaplan runner hubs that are currently being utilized at John Day Dam operated by the U.S. Army Corps of Engineers (USACE). Scaled bushing testing utilizing a Pacific Northwest National Laboratory designed, fabricated, and operated Bushing Test Stand under the direction and funding from USACE determined that self-lubricated bushings tested appear capable of outperforming the current oil-lubricated bronze bushings. Performance tests are focused on durability which includes cyclic load bearing properties and articulations under various loading scenarios. This testing was performed at nominally 1/5th scale. A scaling sensitivity analysis determined that scaled testing results apply to prototypic size. This report shows the direct comparison between the current baseline bronze bushing to self-lubricated bushings from various manufacturers. Bushing data like coefficient of friction and bushing material loss (associated with bushing wear) was determined. Self-lubricated bushings tested include products manufactured specifically for hydropower applications by the following companies: Trelleborg, Kamatics, Anonymous, and Tenneco/Deva.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
2563423
Report Number(s):
PNNL--37577
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
Bearing
Bronze grooves
Columbia River
Friction & Wear
John Day Dam
Kaman KAron V
Kaplan turbine runner
Oscillating motion
Set & Creep
Tenneco deva.tex 552
Trelleborg Orkot TXMM
U.S. Army Corps of Engineers (USACE)
bushing test stand
coefficient of friction
long-term performance tests
oil-free hubs
scaled testing
self-lubricating bushing