
Right I cant sus this - so thrown to the locust builders.
I have a 12v / 240v cooler box to tranport frozen food for a trip to france it will take 2 days to get to our destination.
So the cooler cools to 20 bellow ambient temp so lets say the ambient tempreature is 20 and the food inside is -5 is activating the cooling going to
assist in keeping the food frozen longer or activly work against it .
the box is one of these :-
http://www.outwell.dk/Furniture.aspx?b=Outwell&bid=2&lid=1&l=en-GB&ProductId=1840&pid=9&CatId=523
PS even if the food defrost over the 2 day journey thats fine as it is all uncooked meats so no chance of cross contamination.
I just cant work out how these things work so an explanation of that may give me the answer I desire.
Thanks & regards
Agriv8
It means the temp inside the box will (should!) be zero. So it will defrost slower than left in a coolbox (I am assuming they dont circulate air inside the coolbox, as that may speed up defrosting....)
should add, fill up any exrta space with cartons of frozen fruit juice and bubblewrap. It all helps.
They do have supermarkets in France, you know...
Halfway down the linked page is probably the answer you're looking for...
How do absorption refrigerators work?: a concentrated ammonia solution is heated in a
hermetic system and driven off as vapour. The pressurised ammonia gas is then liquefied in a condenser and supplied with hydrogen. As a result, it
evaporates and, in the process, extracts heat from the food storage space. The ammonia gas then enters the absorber where it is reabsorbed in a weak
solution of ammonia. Finally, the saturated solution flows back to the boiler where the whole cycle starts again. The boiler can be powered by either
gas, 12 or 230 volts.
.... or was that the question?
quote:
Originally posted by David Jenkins
They do have supermarkets in France, you know...
The customs will take meat off of you if they search. Mad cow maggie saw to this making johny foriegner rather nervous about the movement of such
stuff.....
But why take crappy meat from tescos to a country that has fantastic fresh food.
Just like I cant understand why scotland imports water from the south of france
I always try whats local when traveling.
It adds to the experiance. Besides theres a lidls in almost every village in europe if you get really hungry
But the French don't do (proper) bacon
Apart from that, teabags and maybe baked beans.......and some decent beer, although their jenlain ambree is very good.
I think its a peltier system. This is a blend of semiconductor type materials that when polarised one way will cool and when polarised the opposite will warm. They use about 4A if I remember correctly so can flatten batteries quite quickly.
quote:
Originally posted by Nick Skidmore
I think its a peltier system. This is a blend of semiconductor type materials that when polarised one way will cool and when polarised the opposite will warm. They use about 4A if I remember correctly so can flatten batteries quite quickly.
has to be peltier ..... not very efficient or effective but expensive from what I recall on land rover forum.
quote:
Originally posted by mangogrooveworkshop
The customs will take meat off of you if they search. Mad cow maggie saw to this making johny foriegner rather nervous about the movement of such stuff.....
But why take crappy meat from tescos to a country that has fantastic fresh food.
Just like I cant understand why scotland imports water from the south of france![]()
I always try whats local when traveling.
It adds to the experiance. Besides theres a lidls in almost every village in europe if you get really hungry![]()
Thanks Chaps I will research Pelter system seemed to work with some items left in over night which it chilled niceley. The box cost aprox £40 from go
camping.
the meat was from a 'farmer freind' who slaugters some of prize calf bulls and sells the meat to freinds and familly. This is meat that is
bread for taste and texture not what 'Looks Good' on the tesco slab 


we will buy fresh while over there but beef I will be taking
is bread for specialist slauter houses rather than suppermarkets 

.
thanks for the heads up re customs The Box will be Covered in the boot and unplugged while the engine not running.
You could also get some of those plastic coolbox 'bricks' - shove them in the home freezer until they're well frozen, then pack them around the meat in the car's fridge. They 'keep their cold' for a surprisingly long time (i.e. it takes a lot of heat energy to thaw them).