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Research

0362: CPF: Headgate and Spill Gate Bushing Wear Assessment

The purpose of this report is to initiate a forum for hydro owners/operators that can be used to summarize available data and experience-based assessments within this field of interest. To start this forum, a workshop was held in November 2009 for open discussion regarding bushing wear.This report summarizes many of the factors known to result in an increase in trunnion bearing friction. Additional information has been provided to help explain physical and chemical behaviour that can increase tr

HPE

Research

03110: Environmentally Acceptable Oil Test Program

Research

0357: Hydro Turbine/Generator Shaft Stress Analysis Methods and Limitations

This report summarizes the work performed and the ensuing results for the T092700-0357 project, in support of developing stress analysis / life assessment methods and up-rating guidance for hydroelectric turbine-generator (T-G) transmission shafts. The project involved a multi-phased approach entailing background research, analysis and methodology development, and empirical testing. The methodology and tools developed under this project are suitable for use in evaluating the remaining life of ex

Mar 1, 2009 - Jul 15, 2013

Research

0311: CPF: Biodegradable Oils and Greases in Hydroelectric Plants

Hydraulic and lubricating systems are essential to the operation of hydroelectric plants. A common factor in most of these systems is the potential for leakage and spillage of fluids during use and storage. The proximity to waterways makes this particularly important. Although most equipment manufacturers still specify mineral (petroleum) based hydraulic fluids and lubricants, strict environmental regulations and the likelihood of stricter regulations, as found in Europe, in the future are raisi

Research

03108: Gates Inspection and Maintenance Guide

Hydroelectric facilities have been constructed since the early 1890s. As of this writing, the majority of the headgates, spillway gates, and other water control devices at these facilities are at an average age of approximately 70 years. Although gates are essential components of an operating hydro facility for reasons such as river flow regulation, reservoir safety, and flood control, and meeting environmental and recreational priorities, they are often not recognized as a critical priority for

Sep 8, 2020 - Jul 27, 2022

Research

0391: CPF: Hydro Turbine Generator Start/Stop Cost Study

This report reviews the literature, studies, and presentations regarding the effects of start/stops on hydroelectric equipment. Changes in power marketing and the need for renewable resource integration have increased attention to the impacts of increased start/stops. Hydropower’s operational characteristics have made it a valuable resource for traditional load balancing and following. The value of this flexible operation increased in the 1990s when deregulation of some energy markets crea

Aug 24, 2015 - Jul 25, 2016

HPE

Research

03106: CPF: Hydraulic Generation Stations Machine Condition Monitoring and Control Equipment

This is an unbiased reference guide to help educate hydro unit owner-operators and technical staff on available hydro machine condition monitoring (MCM) technologies and best practices. Its purpose is to (1) improve general understanding by corporate and technical staff about important MCM issues and their related considerations and; (2) discuss how to apply hydro MCM to improve machine performance safety, reliability, efficiency and availability.This report is not intended as a detailed, in-dep

Sep 16, 2019 - Feb 3, 2021

Research

0393: Hydraulic Generating Station Penstock Maintenance and Repair Reference Manual

An experienced team of engineers and hydropower professionals was assembled to develop a comprehensive maintenance and repair guide for aging in-service penstocks with the primary objective of providing the hydropower industry with a document that integrates the best available information and practices into a single-point source. The guide aims to enhance understanding of penstock risks and potential failure modes (PFMs) while providing guidance for maintenance and repair practices. The end resu

Feb 6, 2017 - Dec 7, 2018

Research

0371: CPF: Hydroelectric Industry's Role in Integrating Wind Energy

Over the past decade, the cost of wind energy has become competitive with wholesale power prices. Combined with its positive environmental attributes and public demand for clean energy resources, the expectation is that the magnitude of wind power contributing to the electrical supply mix will continue to increase, perhaps someday exceeding 20% of the electrical energy served. Wind energy, however, is inherently variable and subject to inaccuracies in prediction. This variability and uncertainty

Research

0386: Commissioning Guide for Hydroelectric Generating Stations

The purpose of this Commissioning Guide is to provide general guidelines, best practices, and typical reference procedures to assist engineers in understanding, planning, and carrying out the commissioning of major equipment for hydroelectric stations. The objective of a commissioning program is to ensure that all of the equipment can be operated safely and reliably as an integrated assembly, as required by the design specifications and performance requirements; this is achieved by performing a

Sep 20, 2013 - Dec 6, 2016

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