Saturday, May 25, 2013
Steel pipe was the norm, but the difficulties of the terrain and the exacting standards needed to properly fit steel pipe sections together made the project owners look for another solution. Grupo Secacao choose high-density polyethylene pipe —a more...
Conceiving such a project, which dwarfs even China's Three Gorges, is one thing. And indeed, the first studies on the Grand Inga project were conducted a half century ago. Of course,...
The Sibulan A and B hydro plants were built to provide daily peaking operation for owner Hedcor Inc. The two cascading plants harness the Sibulan and Baroring rivers in Mindanao, Philippines, and have a total capacity of 42.5 MW and expected annual output...
The International Commission on Large Dams (ICOLD) recognizes the importance of providing the tools necessary to adequately develop dams, hydropower facilities and water resources projects around the world. Capacity building and the development of strong...
Condition-based maintenance is designed to prevent in-service failures and to focus maintenance on equipment as needed and when deterioration is indicated. This demands the clear identification of maintenance requirements to ensure that equipment is not...
When the first turbine-generating unit at the 3,150 MW Santo Antonio project began producing electricity in March 2012, it was nine months ahead of the operating date set in the concession contract for the project. This facility, on the Madeira River...
"George, I need some help." Carlos was calling from South America, where the 225 meter-head Molinos plant, which contains four Francis turbine-generator units, had recently been commissioned. Carlos was operating engineer for the utility that owned the...
Vibration of the draft tube flaps at the 1,050 MW Markersbach pumped-storage facility in Germany began occurring in the 1990s as a result of a change in the operating range of the pump-turbine units. The original equipment blocking the flaps in the opened...
Pelton turbines are designed for high-head applications and consequently high pressure. Thus, the large forces and rapid load cycling typically found within a Pelton unit during operation...
With both faced symmetrical hardfill and concrete-faced rockfill dams being suitable for sites with poor foundations, the authors set out to determine unique characteristics of the two dams types. Their research revealed a smaller amount of deformation...
