how i market refregerators at very cold places like north pole?
541571
Somehow show that not everything needs to be frozen, as it would be if you just stored it outside. And that a "balmy" 38 degrees or so (whatever you set a fridge to) is desirable.
277473
I have seen them working. I believe they are the first refrigerators.  This one we had to turn down because the food was freezing in the main compartment. It seemed to work very well. The athletes bag that gets cold when you squeese it is also some ammonium salts dissolved in water.\nThe problem was I had an Uncle that passed out working on one because it uses Ammonia and water. If vented it can be poisonous.  I heard of a small box with a black panel on one side and the sun heat made the inside cool.\nThe heat turns Ammonium Hydroxide dissolved in the water into Ammonium gas and water. The mixture travels a little way outside and cools just a little. Inside the refrigerator, the tubing gets more constructed, the pressure goes up and the ammonia dissolves in the water. This is an endothermic reaction (takes heat from the environment) so it is cool. This travels more inside getting warmer and cooling the inside. Then it travels outside and into the flame again. I don't know how to engineer the amount and sizes of tubing. It does seem to work well. Perhaps for India a combination of solar and propane would work best. \nGood luck on your enterprise.
752365
Not very well. \n\nIf the ambient temperatures will be in the 30 degree range and below then a heat pump does best with a heat sink such as a underground well to provide heat at high enough level to be economic.
588425
A "fridge" in the sense you are speaking isn't realistic. If you really want something that cold, get some liquid nitrogen and go nuts.  It's not as cold as, say, liquid helium... but oxygen in the air will nicely dissolve into liquid nitrogen, and you don't have to keep it under any pressure.  If you want to create a fridge, the best way would be to create a vacuum on the inside and line it with copper (silver plated, ideally) pipes all over the place (for conduction). Cycle the liquid nitrogen through a compressor and through the pipes. But why? This would likely cost 3 or 4 grand to get something that actually works.
982374
Try a company called Eurocold
773772
very cold!!!!!!!!!!!!!!!
804960
Do a search on "absorption cycle" refrigeration.\n\nThey work using heat alone and they have no moving parts. Quiet, reliable, and no electric pump is required. The refrigeration effect is obtained by exploiting a temperature-dependent solution concentration of two materials.\n\nThese are commonly used in mobile homes and in areas where an electric supply is not reliable.(or not available.)
149094
i don't know. i'd like to find out to. mybe it's TOO cold? maybe not enough people there.
345255
what are the items which you are selling? if they are not too large, can you keep one room to store them. put an advert in your local paper. good luck
980411
No. It would have to be extremely cold before one would crack. I've had them in my vehicle when it got down to -10F and nothing happened.
182579
Decide how you want to sell them -- via your own storefront, or via distributorship. Your decision will affect the permits and licenses you will get.\n\nYou can start by offering your items to pet supply stores or gourmet pet food shops. Ask these shop owners their procedures and how they can sell your item in their shops. \n\nI interviewed a lady in Chicago who started a business selling gourmet ice cream for dogs. You may want to read her story to give you some ideas of how to market your product http://www.womenhomebusiness.com/startup/chillydawg.htm
330911
A system cooled by liquid nitrogen
480987
Look in a local newpaper there. Check out the Classifieds section first though. I dont know what that would be called though... but it sounds freezing! Dress Warm Nixs
516478
Information on absorption refrigeration at this site:\nhttp://www.nicorinc.com/en_us/commercial/products_and_services/air_quality/absorption_works.htm
8361
The coldest temperature ever produced was 100 pK during an experiment on nuclear magnetic ordering in the Helsinki University of Technology's Low Temperature Lab[3].
340030
Factory presets are 0 F for the freezer and 37 F for the refrigerator. Depending on the ambient temperature (temperature outside of the refrigerator) the temps might be six degrees higher or lower and still be normal.
569589
I guess it can be done, but since your car isn't as well-insulated as your freezer, you'll need to change your AC and use a lot of power in order to do it. More power means a larger engine (more expensive) and more gas consumed (MORE expensive). You can also try buying a refrigerated truck and hanging out at the back.