View Full Version : 'Reverse microwave' invented
Skywizard
27th October 2013, 17:08
A new device has been developed that is able to chill wine and fizzy drinks in a matter of seconds.
http://www.unexplained-mysteries.com/images/news_large/news-cold-drink.jpg
The device can cool drinks without the need for ice-filled coolers.
Microwaves revolutionized cooking when they first became available for consumer purchase, removing the need to stand for long hours over a stove and providing the ability to heat up entire meals in minutes with little human intervention.
A kitchen appliance capable of doing the opposite however is something that has remained elusive for years. While fridges and freezers can cool down items reliably the process takes a long time, but now boffins have come up with a device that is able to cool a drink from room temperature to near freezing in just a few seconds.
The new appliance works using a stop start rotational sequence to create a special vortex that rapidly cools the liquid. The system is even able to cool fizzy drinks without agitating the fizz.
The technology is being hailed as the next big thing in kitchen accessories and uses 80 percent less energy than standard drink chillers.
http://www.youtube.com/watch?v=NSVChmfcv2k&feature=player_embedded
Source: http://www.telegraph.co.uk/science/science-news/10404692/Reverse-microwave-can-chill-wine-bottles-and-fizzy-drink-cans-in-45-seconds.html
peace...
skywizard
DeDukshyn
27th October 2013, 18:04
As soon as I saw the thread title, I thought "Yeah! Instant beer chilling machines!" ;)
Bob
27th October 2013, 18:07
Funny description for a Rankin Refrigerator... - conceptual reference: see http://en.wikipedia.org/wiki/Vortex_tube - read Ranque-Hilsch vortex tube, a device called "The vortex tube" was invented in 1933 by French physicist Georges J. Ranque. German physicist Rudolf Hilsch improved the design and published a widely-read paper in 1947 on the phenomenon.. There is no reverse microwaves here..
"Reply by: Whippet • 2 days ago
"Not really sure why the hack who wrote this is calling it a "reverse microwave"?
"In case you didn't realise, a Microwave Oven is called that because it involves bombarding food with electromagnetic radiation in the microwave spectrum, which causes dielectric heating of the food within.
"For this to be a "reverse microwave", it would have to involve sucking energy out of the liquid somehow (perhaps via a miniature black hole?). If you actually did a bit of research on how it actually works, you would notice that it isn't anything like that.
"Why not call it something like, I dunno, a rapid chiller/cooler (or even a Rankine cooler!) which is what it actually is?"
DeDukshyn
27th October 2013, 18:11
"Reverse microwave" is obviously just a simple way to describe a "chiller" as opposed to a "heater" - which is what a microwave oven is -- but yeah, there's no actual microwave tech happening here.
Bob
27th October 2013, 18:50
"Reverse microwave" is obviously just a simple way to describe a "chiller" as opposed to a "heater" - which is what a microwave oven is -- but yeah, there's no actual microwave tech happening here.
I would think a better "Beer-Cooler" than the "reverse microwave claim (of this thread)" would be that as expressed in this article - http://arxiv.org/pdf/1011.1684v1.pdf
The expansion of gas refrigerators are doing 5-10% of the Carnot cycle (a measure of heat transfer), and the Magnetic Refrigerators are achieving about 30-60% of Carnot cycle, and not wasting energy, and getting the beer cooler, faster, and tastier :)
Anchor
27th October 2013, 23:38
If it can freeze things I would like that, since I am distilling Lavender oil at the moment and it is a good way to separate the oil from the water when dealing with tiny quantities.
Ellisa
27th October 2013, 23:40
I bought a small machine as a present for someone, a few years ago that cooled a single battle of liquid in 6 minutes! It still works quite well, but I can't remember the technique it used but I'm pretty certain it wasn't microwave.
Carmody
27th October 2013, 23:41
As soon as I saw the thread title, I thought "Yeah! Instant beer chilling machines!" ;)
Yes!
I may not drink beer very often, but went I want one, I want one real real bad. Chilled. near frozen, is best. (blond/pilsner fan)
Alekahn2
28th October 2013, 01:54
As soon as I saw the thread title, I thought "Yeah! Instant beer chilling machines!" ;)
Low-tech version, courtesy of "CrazyRussianHacker" :cool: Cheers!
EukG92Evw3Q
sigma6
3rd November 2013, 01:04
Did you catch what they didn't say... that means they could make fridges that use 80% less electricity....
How long is it going to take, and how hard will they have to fight to get that into the market... ???
Bob
3rd November 2013, 16:57
Did you catch what they didn't say... that means they could make fridges that use 80% less electricity....
How long is it going to take, and how hard will they have to fight to get that into the market... ???
see http://arxiv.org/pdf/1011.1684v1.pdf
The expansion of gas refrigerators are doing 5-10% of the Carnot cycle (a measure of heat transfer),
and the Magnetic Refrigerators are achieving about 30-60% of Carnot cycle
the key is to look at the actual energy transfer system that deals with heat and work force needed.
The magnetic systems seem the most efficient as far as total energy needed for the effective cooling.
(Lemme get another Pilsner and test that one more time, where is my recording thermometer)
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