Talk:Pelton wheel

message: Comment: I am a docent at a California State Park where I operate (on occasion) several Pelton Water Motors that were installed originally in the 1890's and which still are in fair running condition under 200 feet head. Thanks for the information you have provided.
Question: In 1898, the largest single installation of Pelton Wheels in the world was at the Fraser and Chalmers industrial plants in Chicago, Illinois. This seems to fly in the face of the dogma that reaction turbines would be much more efficient at heads of less than 50 feet. Can anyone shed light on this?  — Preceding unsigned comment added by Mdalbey (talk • contribs) 16:29, 25 March 2013 (UTC)
thread_title: Comment and Question

message: A reference to the Knight Foundry would improve the article. 81.189.153.130 (talk) 12:18, 18 August 2010 (UTC)
thread_title:  Knight Foundry 

message: The reason for having various stages in a gas or steam turbine is not the compressibility of the gas. The reason is that the turbine gets more efficient as the number of stages increases just because each stage is going to be most efficient in a very narrow range of flow conditions (compressible or not actually). By construction a Kaplan turbine does not permit this.   —Preceding unsigned comment added by 82.198.110.40 (talk) 15:19, 21 August 2008 (UTC)
replies: text: This seems like an explanation of sufficient quality to be written in as the reason for Pelton wheel turbines being single-stage. Is there still a reason to maintain a citation needed for the explanation currently on the page? Additionally, perhaps it is important to consider that the method of energy extraction for a Pelton wheel turbine relies almost entirely on removing momentum, not extracting work from pressure as in a typical axial-flow turbine, and as such the addition of extra stages would be misguided and not helpful. ArthropodOfDoom (talk) 21:30, 2 March 2018 (UTC)
thread_title: Compressibility

message: Not sure about that link, his is not a pelton wheel of any description.  I think it is just advertising and I am removing the link.  —Preceding unsigned comment added by 172.142.113.137 (talk) 22:52, 10 January 2008 (UTC)
thread_title: Ian Gilmartin

message: The bottom of the article states that
"Energy is force times distance, and the higher pressure can apply the same force with less mass flow."
Force times distance, though energy, does not intuitively translate to decreasing flow rate with higher pressure. I believe this should be reworded as
"Pressure times volume is energy, and higher pressure can deliver the same amount of work with less mass flow." 
If no one complains or makes a similar change, I will probably make this change myself some time after the first of the year. --Commdweeb 13:17, 7 November 2006 (UTC)
thread_title:  Energy 

message: Water is compressible...
...but for the purposes of most calculations is taken to be incompressable.
:The distinction is unimportant in this context. :) ---J.S  (T/C/WRE) 01:01, 6 October 2008 (UTC)
thread_title:  Water... 

message: I propose merging Lester Allan Pelton into here. There is almost no information about Pelton himself in his own article; most of it talks about his invention, so he doesn't really warrant an article himself. Any objections? howcheng  {chat} 06:47, 21 November 2008 (UTC)
replies: text: I expanded the article into more of a biography and removed the tag. No need for a merge now.--NortyNort (talk) 03:30, 17 July 2010 (UTC)
thread_title:  Proposed merger 

message: "This wheel is estimated to have produced about 60,000 sperm in its adult life (45 MW) on a flow of about 7 m3/s"
Apparently an error but I'm not sure what correct text should be, anyone?
JasonVen (talk) 18:29, 14 April 2009 (UTC)
thread_title:  Examples and Design Data 

message: The formula for specific speed might be wrong.
The folmula given matches the one for pumps in the separate article on specific speed. This formula has a 3/4 exponent.
The text afterwards mentions a 5/4 exponent. In the specific speed article there is another formula for turbines that has a 5/4 exponent. Could a knowledable person please check this.  — Preceding unsigned comment added by 195.75.73.40 (talk) 09:32, 19 January 2012 (UTC)
replies: text: The current section confuses pump specific speed and turbine specific speed; and is corrected per edit> 0950, 10 june 2012 (jbeans).--Jbeans (talk) 04:49, 13 June 2012 (UTC)
thread_title:  Specific speed 

message: A primary factor in the success of the Pelton Wheel is the use of the Doble Nozzle.
I have been unable to find references about its development and implementation. LorenzoB (talk) 04:19, 19 October 2015 (UTC)
thread_title:  Doble Nozzle 

message: This page would benefit from an animated GIF showing how the pelton turbine works compared to a traditional water wheel Tomhannen (talk) 15:29, 25 July 2021 (UTC)
thread_title:  This page would really benefit from an animation