Talk:Corona discharge

message: This page springs from me working on the HVDC page when I came across some physics I didn't understand and now do (I think)! :).
It's currently overobsessed with mechanism, and would benefit from people working on the history applications, etc. This is because of my natural inclination, which I have to fight, :). I won't be h[User:Kaet|Kaet]] 17:48, 14 Sep 2003 (UTC)
thread_title: Untitled

message: I'd like to have a clearer description of the differences between arcs, sparks, and corona discharges.  In air, do they have different colors?  I remember playing with a Van de Graaff generator, I would sometimes see a purplish, wide, "fuzzy" discharge, and sometimes a thin white or yellow discharge.  Is one a corona and the other an arc?
Also, what is the relationship to a plasma arc loudspeaker, is that really an arc, or a corona discharge? - Omegatron 13:53, May 10, 2005 (UTC)
:See also Talk:Spark_gap#Clarify the difference - Omegatron 18:09, Jun 4, 2005 (UTC)
:Yes, Omegatron, the purplish fuzzy discharge is a corona or brush discharge, and the white or yellow momentary discharge is a spark. - Omegatron 18:38, August 7, 2005 (UTC)
::Yes, the simple difference is that with a corona discharge, the electrons get forced off the metal into the air, but have no place to go -- there's not a closed circuit.  With an arc, there is a closed circuit from one conductor through the air to another conductor. 68.81.105.126 02:45, 26 November 2006 (UTC)
thread_title:  Some questions 

message: I found an ISBN, but it actually refers to this edition, printed in 2002:
* 
What's the difference? —Phil | Talk 16:13, 8 November 2005 (UTC)
thread_title:  New edition of Peek's book 

message: After reading half of this article, I have coem to the decision that someone needs to make this article more comprehensible to the common person...
If someone could do this, I think it would be greatly appreciated by many people.
Omega Archdoom 06:55, 5 November 2006 (UTC)
thread_title:  Laymans terms. 

message: I have some (IMHO) extremely cool pictures of corona discharge from a home-built ozone machine here: http://erikmartin.com/sci/ozone/ozone.html  They are marked as public domain on the web page.  If anyone thinks that any of them might be appropriate in the article, please feel free to use them. 68.81.105.126 02:45, 26 November 2006 (UTC)
thread_title:  Cool Corona Discharge Pictures 

message: Quote from the application section:
"Scrubbing particles from air in air-conditioning systems (see electrostatic precipitator)"
I doubt that ESPs can be called an application of corona discharges.
In an ESP, the electric field polarizes dust particles making them move to the wire electrodes.
There might be a corona effect, of course, if the electric reaches the corona limit.
However, this corona plays no role in the dust collection mechanism.
On the contrary, my guess is rather that the corona limit is one of the operating limits of an ESP, since going close to the corona limit might trigger a discharge and increase the risks of explosion in some conditions (carbon monoxide, organic volatiles, flammable dusts, ...)
I think this item should be removed from the application section.
—Preceding unsigned comment added by 62.180.140.217 (talk) 07:28, 21 February 2011 (UTC)
replies: text: No. The great thing about Wikipedia is you don't have to guess, or speculate...you just find references.  Google Books says that Page 22 of Electrical operation of electrostatic precipitators by K. R. Parker say in part Although there are various methods of particle charging...for industrial precipitator applications corona charging is universally used as being the most efficient and cost-effective approach.  If it's good enough for Parker of the IET, it's good enough for Wikipedia. --Wtshymanski (talk) 16:02, 21 February 2011 (UTC)
thread_title:  Are electrostatic precipitators (ESP) an "application" of corona discharges?" 

message: I have pictures of corona discharge on corona ring of 500 kV overhead power line, if appropriate, they can be placed in the article.
thumb|Corona discharge on corona ring of 500 kV overhead power line.
Or lighter version
Nitromethane (talk) 23:47, 19 July 2013 (UTC)
thread_title:  Selfmade Pictures of Overhead Power Line Corona Discharge 

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thread_title:  External links modified 

message: It's good to explain to the unlucky reader who may be trying to learn something about a topic that it has applications other than being a forum for Wiki formatting wars.  Kick a ball three times in a tournament and your place here is assured forever, but list what something is used for and *watch* the tags and deletions fly. --Wtshymanski (talk) 21:50, 20 May 2018 (UTC)
replies: text: Nobody said anything about a deadline. This has nothing to do with applications and everything to do with WP:TRIVIA and WP:BURDEN, as I have said, and you have failed to address. Please focus on why we should ignore these policies. – voidxor 21:08, 22 May 2018 (UTC)
thread_title: There's no deadline