Talk:Gas-absorption refrigerator

This page appears to have been lifted--in its entirety--from http://www.gasrefrigerators.com/howitworks.htm

Anybody who wants to help me begin a new write up would be most appreceiated.

CheersIroll 22:00, 12 September 2005 (UTC)

I have been working on one overnight! I have inserted it -- please check for accuracy, comprehensibility etc. I combined in the changes already made to History, Bibliography and See also

The http://www.gasrefrigerators.com/howitworks.htm URL is only one of many that Google turns up with the same words. The accompanying diagram has an Electrolux logo, but I can't find the words or diagram on their site.

I have inserted http://www.gasrefrigerators.com/howitworks.htm into the references as it is good in that it has a clear version of the diagram on the same page.

Have you the time to tackle Absorptive refrigeration? I have spent more time on this than I really had to spare. I will just stick in a pointer to here, as the page at present is a mixture of this presumably copyright stuff and absolute bunk. (OK, couldn't take it, removed the worst of the bunk as well.)

Oak 12.45, 13 September 2005 (UTC)

Tidied up the intro paragraphs a bit, being pedantic about the use of electricity, and trying to sort the info about geographic uses logically. Also spellchecked.

Oak 12.02, 20 September 2005 (UTC)

Why not put the lithium bromide section from Absorptive refrigeration in this article? This article has the idea that absorption refrigeration is ammonia absorption refrigeration and the fact is that ammonia absorption is only one form of absorption refrigeration, the other main form being lithium bromide. Research it and you'll find almost as much presence of lithium bromide on the web. Rtdrury 14:02, 4 December 2005 (UTC)

Guys, I really don't think they work in the same way as regular refrigerators. If they did, they would have an expander and a compressor. However, when I look at the diagrams, it looks to me like everything is at the same pressure, so an absorptive regrigerator can't possibly be based on charles law, like regular refrigerators are. User:Ray Van De Walker


 * That's right, gas absorption refrigerators operate differently than common domestic refrigerators. &mdash;Ryanrs 16:29, 13 May 2006 (UTC)

To what temp. does it need to be heated for the process to work? --JohnTGold 17:13, 21 August 2006 (UTC)

I'm not a refrigeration expert, or a physicist. This is just my opinion, I really don't think this is correct. Or at best, it is a bad explanation of Dalton's Law "Per Dalton's law, the ammonia behaves only in response to the proportion of the pressure represented by the ammonia, as if there was a vacuum and the hydrogen wasn't there. Because a substance's boiling point changes with pressure, the lowered partial pressure of ammonia changes the ammonia's boiling point, bringing it low enough that it can now boil below room temperature." That's just not true. Imagine, this implies that Water would boil on Earth on a very dry day. A liquid boils when the TOTAL pressure fails below (or is equal to) the vapor pressure being exerted by that liquid.User:OsteopathicFreak Bryan 66.82.9.49 06:58, 21 January 2007 (UTC)


 * You are probably right - I wrote that part, and aimed at making it understandable the way I understood it more so than ensuring technical correctness. Your rationale sounds reasonable, please feel free to fix it. Reswobslc 09:54, 21 January 2007 (UTC)

The liqid may not 'boil', in the sense that bubbles of vapour form, but it will evaporate (which is the same thing). The liquid and vapour are in equilibrium, and the liquid only 'sees' the partial pressure of the vapour, not the total pressure. If this were not the case then washing lines wouldn't dry clothes. This whole page is a bit of a mess, conflating absorption, diffusion absorption (Platen-Munters, electrolux), and open dessicant cycles. I'd like to have a go at it sometime soon.Roger Thorpe 10:50, 3 June 2007 (UTC)