08-01-2024, 04:21 AM
Hey guys,
I'm Jack, a retired engineer living on a homestead.
In my search to create our own electricity on-site I've always looked at our wood fired stove and wanted to do something with that lost heat.
This lead me through a whole maze of things on the internet and in my head. My ideas and designs changed many times. All in the search for efficiency.
It started with stirling engines, then rotary heat engines to eventually the tesla turbine as prime mover.
I would like to log my progress and share the process with anyone who's interested.
Because this might eventually lead to, what I think is, Tesla's ambient heat engine this is not something most forums will allow to be posted. It's seen as a perpetuum mobile, breaking some laws here and there.
I'll be posting as I go along. At the moment I've thought out the concept and am finalizing the last drawings of parts for my first test setup.
Initially I'm going to build a version for our stove, to both test the concept and solve our electricity "problem".
Later I'll try to develop further for the ambient air engine.
When everything works I will make the CAD drawings available to everyone.
The idea is to make a sand battery that can store heat from the stove (it's our cooking stove in the tropics, so not always on). The turbine will draw heat from this battery.
It will be a closed loop vacuum steam system, hopefully.
The turbine will be dual stage, so a turbine and pump on one shaft.
The idea is that the pump will be powered by the turbine directly and will pump the fluid through a cd-nozzle aimed at the turbine.
Under the right conditions this should turn the heat from the battery into kinetic energy and create supersonic speeds in the fluid. These will be captured by the turbine.
The turbine and pump
The above video shows better than I can explain in words. The fluid takes a spiral path from outside to inside the turbine radius. On the inside there is a passage directly connected to the pump. (This is what I think is the "Tesla cold hole") The pump pumps out the fluid by centrifugal forces, evacuating the passage.
If someone wants or needs more info on this I can elaborate on my theories, hopefully I can start testing the theories soon.
This is the initial test setup I have planned. Two shafts, one for the pump and one for the turbine. The red thing is a 3d printed nozzle I can quickly change to test different sizes/designs.
With this setup I plan to test different disc spacings (0,1 to 0,7mm possible), different pump:turbine size ratios and initial load tests. I should be able to measure input and output quite precisely.
The idea is to play around with as many options as I can to get a feeling for its behavior.
I have some standard parts already, like bearings, shims and bushings. The machined parts will have to wait until September.
I'm Jack, a retired engineer living on a homestead.
In my search to create our own electricity on-site I've always looked at our wood fired stove and wanted to do something with that lost heat.
This lead me through a whole maze of things on the internet and in my head. My ideas and designs changed many times. All in the search for efficiency.
It started with stirling engines, then rotary heat engines to eventually the tesla turbine as prime mover.
I would like to log my progress and share the process with anyone who's interested.
Because this might eventually lead to, what I think is, Tesla's ambient heat engine this is not something most forums will allow to be posted. It's seen as a perpetuum mobile, breaking some laws here and there.
I'll be posting as I go along. At the moment I've thought out the concept and am finalizing the last drawings of parts for my first test setup.
Initially I'm going to build a version for our stove, to both test the concept and solve our electricity "problem".
Later I'll try to develop further for the ambient air engine.
When everything works I will make the CAD drawings available to everyone.
The idea is to make a sand battery that can store heat from the stove (it's our cooking stove in the tropics, so not always on). The turbine will draw heat from this battery.
It will be a closed loop vacuum steam system, hopefully.
The turbine will be dual stage, so a turbine and pump on one shaft.
The idea is that the pump will be powered by the turbine directly and will pump the fluid through a cd-nozzle aimed at the turbine.
Under the right conditions this should turn the heat from the battery into kinetic energy and create supersonic speeds in the fluid. These will be captured by the turbine.
The turbine and pump
The above video shows better than I can explain in words. The fluid takes a spiral path from outside to inside the turbine radius. On the inside there is a passage directly connected to the pump. (This is what I think is the "Tesla cold hole") The pump pumps out the fluid by centrifugal forces, evacuating the passage.
If someone wants or needs more info on this I can elaborate on my theories, hopefully I can start testing the theories soon.
This is the initial test setup I have planned. Two shafts, one for the pump and one for the turbine. The red thing is a 3d printed nozzle I can quickly change to test different sizes/designs.
With this setup I plan to test different disc spacings (0,1 to 0,7mm possible), different pump:turbine size ratios and initial load tests. I should be able to measure input and output quite precisely.
The idea is to play around with as many options as I can to get a feeling for its behavior.
I have some standard parts already, like bearings, shims and bushings. The machined parts will have to wait until September.
