World Library  
Flag as Inappropriate
Email this Article

Paddle wheel

Article Id: WHEBN0024512697
Reproduction Date:

Title: Paddle wheel  
Author: World Heritage Encyclopedia
Language: English
Subject: Maritime history of California, History of California, Roller ship, Raceway pond, Screw sloop
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Paddle wheel

Dry raceway pond for algae production, showing paddlewheel.

A paddle wheel is a form of waterwheel or impeller in which a number of paddles are set around the periphery of the wheel. It has several uses, some of which are:

  • Very low-lift water pumping, such as flooding paddy fields at no more than about 0.5 m (20 in) height above the water source.[1]
  • To move and mix algae culture in the raceway ponds used for algaculture.
  • Propulsion of boats (as a paddlewheel)
  • Low head hydro power (as a waterwheel)
  • Flow sensors
  • Aerators

The paddle wheel is an ancient invention but is still used today in a wide range of industrial and agriculture applications.

Physics

The paddle wheel is a device for converting between rotary motion of a shaft and linear motion of a fluid. In the linear-to-rotary direction, it is placed in a fluid stream to convert the linear motion of the fluid into rotation of the wheel. This rotation can be used as a source of power, or as an indication of the speed of flow. In the rotary-to-linear direction, it is driven by a prime mover such as an electric motor or steam engine and used to pump a fluid or propel a vehicle such as a paddle-wheel steamer or a steamship.

References

  1. ^ Paddle wheels used for pumping
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.