Member MartHale7
MemberForum Replies Created
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Another view of the raid.
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My progress on my sand battery.
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Overview of the sand battery:
1752 A DIY Sand Battery – The Theory, Practice And Use
https://www.youtube.com/watch?v=Icai6OOIh2M
Using the waste heat of a Diesel heater:
DIY Vevor Diesel Stove with Free Energy Sand Battery
Sand heat storage fireplaceã…£Cleaning the fireplace
Isec solar cooker build:
https://www.youtube.com/watch?v=YX1SGK7gTg8
Someone who is doing a similar build as mine:
https://youtube.com/shorts/I5CHVMwNlys
My permies thread on my progress on sand battery:
https://permies.com/t/206700/Sand-battery-thermal-mass-proto
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Storing energy is what I have been looking at lately…. Been looking at storing it chemically. I ordered some quicklime to test out the heat released out of it verses the process of charging it back up….
Thanks for sharing your progress.
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You mean when someone posts off topic, and then 4 min later someone tells you that the message just posted is a wonderful idea? Yeah I agree.
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I found this interesting, I did not remove the 2 1/2 gal pot from last night but covered it over still sitting on the sand / steel base. I removed the water when it started to boil, but I found that the temp of the thermocoupler was surprisingly high… I have also noticed that i was loosing a good deal of heat from the top so I added a bit more fiberglass insulation on top, after removing the boiling water. Plan to recharge this and try again with 1/2 of the amount of water…
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Today hit the highest temp ever, over 803 deg F….
It was a bright sunny day, I had replaced the wire with silicon covered wire..
Also I removed some of the sand and I put a 12 inch long rail road rail in the dutch oven with some sand inside.
I believe if I opened this up and put a pot on the top with water it would instantly boil……
I am most curious how long this will take to cool off……
The real questions I have now is how much mass can I add to this equation, as bricks or steel, and how does that affect the cool off time?
Hitting this temp blew me away. Tomorrow is another sunny day, I imagine I will have some residual heat and the temp will get higher.
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Yesterday my sand battery with the dutch oven, insulated with fiberglass hit over 600 F! This morning the next day the lowest temp it was at was 234 F!
The temp is going up again, looks like I will have this well over 200 F for over 24 hours!
This is with 3 solar panels 220 watts each… I have about 1 5 gal bucket of sand in the mix.
I am now thinking about what if I used an aluminum puck in the dutch oven so that I could pull it out and cook on it……
These temps are with partially cloudy days, next week they are calling for clear sunny days….
Now I am thinking of moving forward with building a sand battery the size of a IBC container 250 gal…….
I would then use the power I am not using after my batteries are charged to dump into that to store heat…..
The present setup should give me a good idea of how to scale up….
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Much depends on how close your neighbors are, if they are in earshot of the device they may raise the issue. Other problems can be insurance as windmills can throw blades which can cause destruction for neighbors, or being up on a tower the tower can fall.
On the off grid groups I have been apart of a combo of solar with wind was what many supported as when there was no sun wind can fill in the gaps for power.
Windmills can be made to be quiet with proper bearings or design.
I bought a wind gen and I gave it away because in my area there are too many trees that block the wind thus it was not a good option for me. I had considered using balloons with wind generation, but for me solar was the best option being in Florida where there is an abundance of sun.
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I have a pelter fan that could be useful…
Now I am looking into storing heat chemically..
If you put these hand warmers into boiling hot water they re-charge. They would store heat for years….
I have ordered some quicklime to do some experimenting with.
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I watch craigslist about every day… I scan thru looking for deals. Today I found an air compressor for $15.00 which I will go look at. But I scan pick out those deals which make the most sense and go for them. These solar panels are all cracked, and have problems, but yesterday I made tea, I cooked up spaghetti, and I made two large pots of hot water which I cleaned up the dirty dishes with ( amazing how boiling water makes dirty dishes easier to clean. But I got them locally. The best deals to be had are in cities. But if you are always looking you get better at spotting spammers, and the real deals.
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Thanks Mike…
Yes I am doing it now in my fish tanks but I am only lifting like 12 feet to filter my water with fish.
Looks like he has a good setup.
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It is hard to fathom, but they are that voltage, not in series…..
The good news is industrial motors are in this voltage range, and I can run them without issue.. I have been researching daylight drive… from livingenergyfarms on youtube. They have been doing this for years.
When you get a 440 watt panel for $25.00 a panel you do not ask questions, you just find a way 😉
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Agreed. So does paying the price to buy from America where 1/2 of it was made in China.