Hi James,
I thought so, but was not sure. It is security aspects for this kind of products, that is sure and I agree with you. They are also many multiples larger than the old refrigerators. The capacity of an AC must be at a minimum 10 to 20 times bigger. It is however a very interesting technology, that easily can result in price competitive products. I find their solutions intriguing and "ready for use". The licensing seems to be reasonable, even if I am not in a position to realize a business around it any longer. Anyone on the list who is, I recommend to look at it seriously. Hakan At 02:32 PM 2/26/2003 -0800, you wrote: >Hi Hakan, > >Nope haven't seen any breakthroughs recently. I agree that in a >commercial application ammonia will work well. Even home systems, but >like what was said put the unit outside so if any ammonia leaks the danger >is lowered (except for the neighbors ..... ;-) ). I think that using PV >and a sunfrost would be a better option. Just my .02. > >BTW, I have an old (really old) popular science article of someone using >ethanol in a dessicant cycle air conditioning system. It's burried and >would have to REALLY look for it as it is in paper. It was a great >application but I think the inventer was killed somehow (all you >conspiracy theorists chime in here ....) and it never got off the ground. > >I probably won't look for it as I have been too busy recently and I forgot >where I "filed" it (really loose term here). > >Anyhow, there is/was a company a few years ago that was about to produce a >PV/battery/sterling cooler for 3rd world applications (mostly vaccines) >and was a really great all in one design. I would also have to look for >the link to that ..... (weblink burried). > > >James Slayden > >On Wed, 26 Feb 2003, Hakan Falk wrote: > > > > > Dear Kirk, > > > > Do not be impatient, maybe James have something to tell us. What > > I have seen is that this very old technology is very useful in some > > niche applications. To compete in simplicity, costs etc. with the > > air conditioning suggested, I did not thought so. In that sense I do > > not see Sterling as "ready to use technology". On the other hand, > > it was a long time ago since I looked closer and maybe I missed > > some recent large break trough. > > > > Hakan > > > > At 12:46 PM 2/26/2003 -0700, you wrote: > > >Still waiting to see a Stirling that is as efficient as other cycles > > across > > >the same delta T. > > > > > >Kirk > > > > > >-----Original Message----- > > >From: Hakan Falk [mailto:[EMAIL PROTECTED] > > >Sent: Wednesday, February 26, 2003 12:10 PM > > >To: biofuel@yahoogroups.com > > >Subject: Re: [biofuel] Solar powered air conditioning that really works > > >with temps as low as 80C (176F) > > > > > > > > > > > >James, > > > > > >If you can show me how the sterling will run from 80 degree Celsius > > >solar heated warm water, I think we have an absolute winner. If > > >then the compressor would work with a gas that is not dangerous or > > >contribute to Global warming. A fantastic solution that definitely have > > >my support. > > > > > >Hakan > > > > > > > > >At 10:10 AM 2/26/2003 -0800, you wrote: > > > >Granted it has been around a long time and still used in commercial > > > >refridgeration, but I think that the utilization of a sterling cycle > > > >compressor is a better way to go. Yes, ammonia refridgeration could > > be a > > > >stepping stone, but again the concentrated ammonia is highly > > poisonous. > > > >Dunno, whats the lessor of two evils. > > > > > > > >James Slayden > > > > > > > >On Wed, 26 Feb 2003, Hakan Falk wrote: > > > > > > > > > > > > > > James, > > > > > > > > > > Maybe I am starting to get old, but until around 35 years ago it > > was the > > > > > dominant method in refrigerators. It is also a very common in > > nature and > > > > > if > > > > > I am not wrong it is to consider as a biogas, at least when I was > > young > > > > > and > > > > > worked with horses. Concentrated it is dangerous, but not more than > > some > > > > > chemicals you use for making biodiesel. From an energy saving view, > > a > > > > > solar > > > > > driven air conditioner would be great product. It is built on > > "ready for > > > > > use" technologies with some design changes. Could be a winner and > > >"silver > > > > > bullet" products. Relatively short implementation cycle, easy to > > > > > manufacture, easy dimensioning, easy install and familiar > > technology. > > > > > Well > > > > > worth to investigate in more detail. The key was to lowering the > > demand > > > > > on > > > > > operating temperature and it seems that they found one good > > solution to > > > > > this. > > > > > > > > > > Hakan > > > > > > > > > > At 03:39 PM 2/25/2003 -0800, you wrote: > > > > > >ammonia cooling is dangerous folks, be careful. > > > > > > > > > > > >On Tue, 25 Feb 2003, Kris Book wrote: > > > > > > > > > > > > > It seems like most houses are well enough insulated that > > > > > > > they only need cooling when the sun is shining brightly > > > > > > > but, refrigeration of food and even greenhouses could > > > > > > > benefit greatly from using waste heat to power this system > > > > > > > during periods of low direct sunlight. > > > > > > > > > > > > > > kris > > > > > > > > > > > > > > > > > > > > > --- David Wood <[EMAIL PROTECTED]> wrote: > > > > > > > > on the same though.. why not use the waist heat from a > > > > > > > > veggie diesel > > > > > > > > co-generator for the heat source of this type of system. > > > > > > > > > > > > > > > > david > > > > > > > > > > > > > > > > [EMAIL PROTECTED] wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > http://members.aon.at/solarfrost/main.html > > > > > > > > > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. 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