hazelnuts thread off grid living greenhouse of the future farmer phil's permaculture pdc dvd
Permies likes alternative energy and the farmer likes non electrical refrigeration, freezing, and air condition system permies
  Search | Permaculture Wiki | Recent Topics | Flagged Topics | Hot Topics | Zero Replies | World Domination!
Register / Login


Only 24 hours left for the Early Bird Prices!
Click HERE To Register!

permies » forums » energy » alternative energy
Bookmark "non electrical refrigeration, freezing, and air condition system" Watch "non electrical refrigeration, freezing, and air condition system" New topic
Author

non electrical refrigeration, freezing, and air condition system

Matthew Spaar


Joined: Mar 19, 2012
Posts: 13
Hi permies people, I’ve been lurking for a while now and figured this idea was a good enough reason to sign up as any so here it goes:
I have 2 fast moving streams about 100ft from my house so the system I’ve come up starts with a series of trompes(http://www.permies.com/t/4665/alternative-energy/alternative-energy-appropriate-tech-stuff#40416) to act as the forced air, initial cooling and drying. The compressed air would then flow threw a manifold contained into a passive soda bottle freezer(http://www.permies.com/t/4401/homestead/build-energy-efficient-walk-cooler#54714) in the basement. The freezer would be positioned under the cold cupboard in the kitchen and the now even colder air would be pushed threw another manifold in the cupboard. Finally the cold air would be released into the house providing cold air conditioning. i also thought of using a solar chimney to help things along. I’m figuring the freezer might be a cooler by the end of the season but that is something I’m willing to deal with. I would love any feed back from you guys.
Markham Cornoit


Joined: Feb 15, 2012
Posts: 22
Hello Everyone. Has anyone come across a system which can run off hot water and produce air conditioning for a house ? Looking forward for your reply. Thanks.
Marcos Buenijo
pollinator

Joined: Dec 18, 2011
Posts: 583
Location: Southwest U.S.
    
  12
Markham Cornoit wrote:Hello Everyone. Has anyone come across a system which can run off hot water and produce air conditioning for a house ? Looking forward for your reply. Thanks.


These are available in Europe. See sortech.de. As far as the U.S. I have no idea.

If you're mechanically inclined and willing to experiment, then I can suggest a few possibilities.
Marcos Buenijo
pollinator

Joined: Dec 18, 2011
Posts: 583
Location: Southwest U.S.
    
  12
Looks like that sortech.de site is under construction. Here is another site that describes the same products: http://www.solarnext.eu/eng/prod/chillii_ads_kits.shtml
Charles Reynolds


Joined: Jun 08, 2012
Posts: 10
Location: Seward, AK
Look up designs for old kerosene fired refrigerator/freezers common before WWII. They should be able to run from just about any sort of heat. The refrigerant is common ammonia.
George Stone


Joined: Jun 02, 2012
Posts: 8
Location: South West Iowa
I've been pondering the idea that a propane refrigerator could be modified to use other sources of heat. For instance, why not solar? Any heat source could be used. It should be possible to have an array of available heat sources. Use the heat source that is most appropriate and then have a backup and backups for the backup.

The same could work for home/house cooling. You would have to cobble something together on a larger scale than a refrigerator, but it should work. The technology is relatively simple. The refrigeration unit itself has no moving parts.
Abe Connally


Joined: Feb 20, 2010
Posts: 1467
Location: Chihuahua Desert
Here's an interesting one: http://www.notechmagazine.com/2012/06/the-poor-mans-refrigerator.html


Buy Our Book! Food Web: Concept - Raising Food the Right Way. Learn make more food with less inputs
Off Grid Homesteading - latest updates and projects from our off grid homestead
Abe Connally


Joined: Feb 20, 2010
Posts: 1467
Location: Chihuahua Desert
George Stone wrote:I've been pondering the idea that a propane refrigerator could be modified to use other sources of heat. For instance, why not solar? Any heat source could be used. It should be possible to have an array of available heat sources. Use the heat source that is most appropriate and then have a backup and backups for the backup.

The same could work for home/house cooling. You would have to cobble something together on a larger scale than a refrigerator, but it should work. The technology is relatively simple. The refrigeration unit itself has no moving parts.

no moving parts does not necessarily make them simple. These things usually use toxic chemicals (ammonia), so you gotta be careful.

There were plans floating around the net for a solar ice maker. Basically an ammonia freezer powered by a solar trough.

That brings up an interesting point, have any of you seen the movie, "Mosquito Coast"?
George Stone


Joined: Jun 02, 2012
Posts: 8
Location: South West Iowa
Saw that movie a long time ago. Didn't the "hero" made an ice machine in a jungle somewhere?

Everything has a risk. We just have to be clever and careful about how we manage the risk. Ammonia is toxic, but it's been used in refrigerators, coolers, and refrigeration for a long time. I'm thinking the potential hazard is fairly small. And if I am recalling correctly, it's not very concentrated in refrigeration units. That and I don't think we're talking about a very large volume of it either. The "active chemicals" in propane refrigerators are ammonia, water, and hydrogen. Handling the hydrogen might actually be more hazardous. Still, I think a reasonably sharp tinkerer could come up with a safe, working prototype and go from there.
Morgan Morrigan


Joined: Oct 16, 2011
Posts: 1400
Location: Verde Valley, AZ.
15 years ago, they were going to use brine as the refrigerant. Is pretty hard on the pipes tho.

There is a company up in colorado distributing a heat exchanging swamp cooler. still takes power tho.


Get involved -Take away the standing of corporations MovetoAmmend.org
Peter Ellis


Joined: Apr 04, 2013
Posts: 1095
Location: Central New Jersey
    
  32
In looking around for more information on trompes, I came across this thread.

Much to my disappointment, there are no responses to the OP. The second post totally hijacked the thread.

So, anyone have any thoughts related to the original poster's idea?

It seems to me that there are numerous uses for a trompe in a good permaculture design, including refrigeration.
It also seems to me that a trompe is a textbook method of stacking functions in certain circumstances.


Now blogging at blasphemouspigeons.com
Rob Lougas


Joined: Sep 07, 2014
Posts: 19
    
    2
Im sure that one could carefully remove the propane fired fridge from a camper and modify it to run off a solar collector instead of the propane burn chamber. Im fairly certain that most of those camper fridges are ammonia absorbtion systems so all that's needed is a heat source that I'm sure could be supplemented by a rmh or solar application. the trick I think would be to get the guts out in one piece so that it doesn't leak or need to be recharged or resealed.
 
 
subject: non electrical refrigeration, freezing, and air condition system