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S, slavkok pi?e:

Hello...

I need to make vacuum in range 5 to 10 mBar. What device to use for that. I need to evacuate aprox 5 litre box but I do not have electricity on place where I need to do that. What options I have?

Thanks

Hello...

I got few orthodox sugestions. But all seems to be inposible to do.
... to get vaccum in container the container is to big.
... to buy gassoline powered generator is out of question
... to use heavy metal to evacuate is to danger and near inpossible to do.
... to use steam seem's possible but not in my case. (it wil saturate content)

to explain why I need that.
In remote location (lodge) I wan't refrigerator to keep foot in cold enought place. Gas refrigerator is just too expensive here and I like to experiment. So I plan to make adsorption refrigerator. It's simple and can be cheap. Just need isolated box with some evaporator inside and canister filled with zeolite. All thing should be sealed and put under vacuum. When watter starts to boil the temperature will drop. So I need to 'pump' it until the water is colled down to aprox 7 degres celsius (10 mbar) and that's all. The zeolite then suck that water vapour until saturate. With good insulation it should work for at least 2 days or at least 7 days if dorr is keept close. So I need to regenerate it at least once per week or more if the dor was frequently oppened. I search for some hand driven pump but not happy with what I fund till now.

Here is links what can be done...



and patent here