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Save the Walls
A rehabilitation job in name only, the 75 year old Army and Navy Club, a landmark located in Washington D.C.'s Golden Triangle, retained only two of its 80 ft high exterior...

Wind Loading and Wind-Induced Structural Response
A State-of-the-Art Report
This state-of-the-art report presents fundamental and practical aspects of modern wind engineering practice as it relates to structural design. The first chapter includes information on...

Wind Tunnel Model Studies of Buildings and Structures
This manual provides guidelines on wind tunnel model testing of buildings and structures. Included are procedures required to provide representative information on wind effects experienced...

Maximum-Slew-Rate Nonlinear Control for Improved Transient Response in Hydrogenerators
This paper considers a linearized model for fixed blade turbines. This paper demonstrates that constant gate speed bang-bang control holds potential advantages over current control techniques....

Advances in Controls to Govern Mini and Micro Hydropower Systems
Conventional controls available for small hydropower systems are surveyed. Electronic load controls for micro hydropower systems are described. Recent developments in the literature are...

Installation and Startup of the Idaho Falls Bulb Units
The Idaho Falls Low-Head Hydroelectric Demonstration Project consists of the redevelopment of three existing power plants using identical bulb turbines and generators. This paper summarizes...

Francis Turbine Surge Prediction and Prevention
Every Francis turbine has some range(s) of load where the flow in the draft tube is subject to fluctuations. Various types of surge during 'steady-state' operation...

Hydraulic Transients?Helms Pumped Storage Project
Pacific Gas and Electric Company's Helms Pumped Storage project is a large underground hydroelectric development which went into commercial operation in June 1984. Because...

Micro PAT-Synchronous Generator Unit for Isolated Power Supply at Sultan Project Dam
The paper describes a unique application of a micro-PAT Unit installation utilizing downstream release flows for providing an isolated power supply at the Jackson (Sultan) dam in Washington...

Economic factors of Hydro Plants Versus Fossil Plants for Load Frequency Control
The purpose of this study was to determine whether hydro plants with Francis turbines or fossil plants are more economical for load frequency control. Using data from the Tennessee Valley...

Laser-2-Focus Flow Measurements in the Runner of a Bulb Turbine and Comparison with Calculation
Flow measurements are presented, which were carried out near and inside the 4-blade runner of an axial model bulb turbine of double adjustable type. These measurements were performed by...

Analyses and Field Tests for Hydraulic Transients Sultan Hydroelectric Project
Two in-line Francis units with their long discharge conduit and bypass valves present some unique problems in controlling hydraulic transients in this system. The problems were compounded...

Analysis and Testing of Transient Pressures at Camp Far West Hydroelectric Project
The objective of this paper is to present a comparative discussion of the results of theoretical analysis of transient pressures and of field tests performed on the Camp Far West Hydroelectric...

Uprating Hydro Turbines and Generators
Various engineering evaluations of the turbine and generator components are required when considering uprating units. Often, certain turbine and generator components have to be redesigned...

Generic Power System Stabilizer Design
The object of this paper is to describe the design considerations of a microprocessor based power system stabilizer operating through excitation control as applied to a multi-unit pumped...

Increasing Hydropower Operating Efficiency
A method is described for determining the most efficient use of hydro units in a multiple unit hydro plant. In a multi-unit plant enough flexibility exists to load a chosen set of units...

Transient Analysis of Variable Geometry Turbines
An interactive general purpose hydraulic transient computer simulation procedure is presented which is capable of performing transient analysis of variable geometry turbine installations....

LRFD Format for Transmission Structures
The structural design of high voltage electric transmission lines in the US is usually governed by the National Electrical Safety Code (NESC). A simple reliability-based Load and Resistance...

Wind Loads on Electrical Transmission Structures
Guidelines for structural loads on electrical transmission structures were prepared by the American Society of Civil Engineers' Committee on Electrical Transmission Structures....

A Field Study of Wind-Induced Conductor Loads
A 161 kV steel pole line in Omaha, Nebraska, is instrumented to provide conductor load field data due to climatic events. Various transducers and monitoring equipment used for data acquisition...

 

 

 

 

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