Rob Sigg wrote:I thought about buying a used compressor for a fridge and just building a larger insulated chamber. I dont need 35F, so 45F would probably work just fine. Im experimenting with frozen soda bottles atm as well.
Rob Sigg wrote:HI Marcos, that is pretty much what Ive been thinking. I got the thermal mass already and even though I probably wont get another panel I am getting another 4 batteries to double my capacity.
Rob Sigg wrote:I think I got it now. You are storing energy in ice instead of batteries? I like your approach, but the reason Im getting more batteries is because I dont have any more room for panels currently. My goal is to not discharge the batteries much lower than 80% on a daily basis and get them to absorption most of the time.
I have insulated my freezer, but I do like your comment on keeping the condenser as cool as possible. Im going to look at mine more closely because I agree standard chest freezers can be made more efficient. At what point does adding more insulation lose its ability to prevent heat into the cooled area? Is it based on thickness/r value or something else?
How do you get the right salinity level with common kitchen tools?
Rob Sigg wrote:Marcos, Ive been putting more thought into the salt water idea. Wouldnt we want to have a higher melt point so the water would stay colder longer? I new to this concept, so sorry to be stupid about it!
Regarding your discussion point. I pretty much did what you suggested with running my freezer only during peak times. At the time I didnt have enough thermal mass in the freezer to keep it all the way through the night to the next day without the temps going too close to 32, I was getting alot of moisture build up as a result, which made a mess. Id like to mess with this more once I get more thermal mass. Its a tricky experiment since I have over $500 worth of meat in the freezer and dont want to risk ruining it!
Rob Sigg wrote:So basically the saltwater is aborbing heat sooner than standard water, therefore preventing that heat from building up on other higher melt objects?