Get our free book (in Spanish or English) on rainwater now - To Catch the Rain.

Changes

Jump to: navigation, search

Hydropower

1 byte added, 14:56, 21 March 2013
moved text about the MARLY machine up
== Mechanical power ==
Prior to the widespread availability of commercial electric power, simple mechanical power was produced and used for [[irrigation]], and operation of various machines, such as [[watermills]], textile machines, sawmills, dock cranes, and domestic lifts.
 
For centuries, power from [[hydroelectric]] resources has been captured by man: it is in 1688, that the MARLY machine, build from 14 wheels and pipes, allowed to pump back water from the Seine, located at an altitude of 162m, to supply in the needs of the ponds and fountains of Versailles.
Some of the work that it has been known to do is saw lumber, and grind grain. The water is usually transferred through a variety of ways; shafts, pulleys, wheels,cables and gears. Hydropower dates back to the Greeks who used vertical axis water wheels as early as 85 BC and horizontal axis wheels from 15 BC. The hydropower was the only source besides wind power to do useful work until the steam engine came along in the early 19th century.
==Small hydropower plants==
===parameters for the determination of a project===
For centuries, power from [[hydroelectric]] resources has been captured by man: it is in 1688, that the MARLY machine, build from 14 wheels and pipes, allowed to pump back water from the Seine, located at an altitude of 162m, to supply in the needs of the ponds and fountains of Versailles. Today, to transform hydropower to electrical power, it is possible to construct very large but also small-sized plants. This article lists the parameters to determine small hydroelectric facilities. They have a place in the process of the development of small communities and in the process of [[sustainable development]] because of the economy in terms of CO²-emissions. See http://www.kuleuven.ac.be-ei-public-publications-EIWP900-09_fr.pdf
===Vocabulary and definitions===
8,100
edits

Navigation menu