Very much more efficient, but you won't be able to reach very high temperatures because a heat pump like that can't handle that.
Yeah, the more I look into it, it may need to be something custom...Very much more efficient, but you won't be able to reach very high temperatures because a heat pump like that can't handle that.
And you are slowly coming to my solution. Instead of storing heat energy, I store electrical energy in the battery. And when heat is needed I start the heat pump. The pros - no heat energy losses and close to constant round trip energy losses (~20%). And electricity can do a lot more than heat. It can cook, it can cool, it can run the TV.
Common heat pumps lose efficiency when you push their output to high temperatures. The lower the output is, the higher the efficiency is. If you plan to heat the oil to 30-35C then yep, it will work. If you plan to heat it up to over 100C - nope, it won't work.
I am hearing numbers like for 1 unit of energy you put into a standard coil heater you get 80 % energy out, but with a heat pump you get 200% back ( provided you have optimal conditions ) ....
Like magic all the bits I needed came together - will head to the beach tomorrow with a bunch of sacks for sand to make a prototype. Our local sand is black - titanomagnetite - Fe2TiO4, a mix of iron and titanium. The downside is that it is electrically conductive, so I will need to attach my conductors through the side of the drum using exhaust gasket or similar high-temperature putty, rather than laying bare copper in the sand itself.
As I have two of everything, I might go to the builders merchants and pick up a couple of hundred kilos of sharp sand as well and run them back-to-back..
I used to collect this with magnets for making cores for my Muller motors, ahh those were the days.
No, I never made it that far, I made several "free energy" devices and came to the conclusion I was putting too much $ in and getting zero energy gain out that I moved on to systems that give me energy every time like solar..... I have been working on looking at ceramic kilns, and I was thinking of running one off direct DC... TOOOO many projects, but I would like to melt aluminium and use my 3d printer to make the molds....The whole of the west coast of the island I live on has black sand beaches. This one is only about 6 miles from my front door.
It was purely coincidental - I was looking for sand and saw our regional plan (covers all the things you can do to trees, rivers, beaches, etc.) said I could take 300kg a year for personal use.
Did you smelt it yourself? (He who smelt it, cast it!)
No, I never made it that far, I made several "free energy" devices and came to the conclusion I was putting too much $ in and getting zero energy gain out that I moved on to systems that give me energy every time like solar..... I have been working on looking at ceramic kilns, and I was thinking of running one off direct DC... TOOOO many projects, but I would like to melt aluminium and use my 3d printer to make the molds....
??DC induction
Is there already a thread? I've seen a few decent designs for DC induction heaters which can get hot enough to melt aluminum. With enough solar you could skip the expensive power supplies and it all suddenly becomes quite inexpensive. Add in some insulation...
Is there already a thread? I've seen a few decent designs for DC induction heaters which can get hot enough to melt aluminum. With enough solar you could skip the expensive power supplies and it all suddenly becomes quite inexpensive. Add in some insulation...
You know how induction work ? There is nothing like DC induction, induction imply changing magnetic field => AC current. Well of course you can create AC from DC .. but this is in no way DC induction, appart if i missed something .. :DIs there already a thread? I've seen a few decent designs for DC induction heaters which can get hot enough to melt aluminum. With enough solar you could skip the expensive power supplies and it all suddenly becomes quite inexpensive. Add in some insulation...
So using nitrol wire to make a kiln may be a better choice.... The advantage would be for convenience for bending metal..... they are very handy if you want to put a bend in metal and not heat up the entire bar.Induction heater has lower efficiency (~80%) compared to resistive heater. There are even OOB MPPT devices for resistive loads like water tank heaters. I don't see benefits in considering inductive heating here.
Do you really not get that he is talking about the source of power being DC? Of course the induction side is AC. I haven't been following along that closely and immediately understood that "DC induction heater" meant "induction heater powered by DC".You know how induction work ? There is nothing like DC induction, induction imply changing magnetic field => AC current. Well of course you can create AC from DC .. but this is in no way DC induction, appart if i missed something .. :D