The best use I see for this device is when you want to convert a mechanical source directly into heat without going through many energy conversion. Example: Windmill. Instead take mechanical energy of your windmill , convert it into electricity with a generator and from this electricty to heat with a heating element. You can just convert it from mechanical energy to heat directly with this friction heat device ( frenette heater ). I don't know if the practical ( not theorical ) effiency is better. Somebody know ?
Ive always thought these were cool motors and even tried to build one years ago, but couldnt find a cheap way to power one. I thought a small one in every room would be a great way to zone heat my house. Any thoughts?
+Robert Murray-Smith - that was years ago when I had the time and space to tinker around. I still have ideas about this now and again. When I buy another house I will have the space to work on projects again.
If you had electricity, you would just use a resistive heater, but what can you do without any power? I've looked at several frenette designs, and some used many discs on a shaft turning in a pail of oil. Perhaps you could try that as well.
I got another idea , like how car turbo generate heat , or air pump generate heat after using it extensively, instead of disk, use air , friction in air molecule genrate heat.
Folks could fit exercise bikes with something like this, rather than a back wheel. Would be handy for your new place abroad. Spin up a beer keg sized version and heat a room.
Hey Rob, did you hear about a Cavitation heater? They seem to be more powerful then internal friction. Could you do a video about that or did you already did a video about Cavitation heater🤔?
thats what i thought but because its graphene it may work especially if you think of graphenes unique qualities, tipped onto a copper can in a bowl of water its worth a try in my opinion aslong as you can dissipate the heat quick enough.
Imagine having big stirling engines on your roof that power friction water heaters, that heats the building, so the building is hot and the outside is cold, so a stirling engine would work!
I accidentally boiled water in a centrifugal water pump when it got switched on while the outlet valve was closed. The water around the impellor got so hot it melted the plastic components of the pump. Try it with your pool pump! Any fluid will get hot if it has something agitating it violently in a confined space. For example, auto transmissions get very hot without consuming the transmission oil. I don’t think it is mysterious - it's friction between the impeller and the fluid. Unless you have a free, or very cheap, source of energy to drive the electric motor that spins the rotor inside oil (or other fluid) confined in a small space, then you might want to use that energy to produce heat by way of an electric heater. For example, if you had a waterwheel driving the impeller to make the fluid confined inside this unit hot, that would be cheap heat. But using an electric motor to drive the impeller to produce heat by friction would use more electrical energy than heat produced. Solar power would not be much use as you likely wouldn’t need the heat on bright sunny days and storage batteries are too expensive in the capacity needed to drive a powerful enough electric motor long enough to produce useful heat. Every time you change energy from one form to another, there is a loss of energy. So converting electrical energy into heat using friction to produce that heat, seems to be inefficient.
Can't understand him! Bah! He's mumbling, the audio is terrible & he's speaking like he's trying to break a world record as the fastest talker. Talk slower, clearer, & have better audio. The info was actually really cool, but I only heard & understood a quarter of what he said.
The best use I see for this device is when you want to convert a mechanical source directly into heat without going through many energy conversion. Example: Windmill. Instead take mechanical energy of your windmill , convert it into electricity with a generator and from this electricty to heat with a heating element. You can just convert it from mechanical energy to heat directly with this friction heat device ( frenette heater ). I don't know if the practical ( not theorical ) effiency is better. Somebody know ?
I think the motor in your drill press probably produced more heat than your heater.
I found this video while trying to find a solution to heat a tent
Heating without combustion ... you could power this by wind or hydro.
Ive always thought these were cool motors and even tried to build one years ago, but couldnt find a cheap way to power one. I thought a small one in every room would be a great way to zone heat my house. Any thoughts?
+C Hoskins personally - i love them and i like the sound of your plan - can you keep me in touch with how the project goes? - maybe a vid or two?
+Robert Murray-Smith - that was years ago when I had the time and space to tinker around. I still have ideas about this now and again. When I buy another house I will have the space to work on projects again.
+C Hoskins keep me up to date with it mate
If you had electricity, you would just use a resistive heater, but what can you do without any power?
I've looked at several frenette designs, and some used many discs on a shaft turning in a pail of oil. Perhaps you could try that as well.
Doesn't they will have short life span , after some time friction will cause material to end.
I got another idea , like how car turbo generate heat , or air pump generate heat after using it extensively, instead of disk, use air , friction in air molecule genrate heat.
a fun and great curiosity from such simple readily available resources .... 1 question pls what is the wattage of your drills motor?
350 watts mate
Folks could fit exercise bikes with something like this, rather than a back wheel. Would be handy for your new place abroad. Spin up a beer keg sized version and heat a room.
it's an idea lol
+Pumpkingilmour it's a nice idea mate - but i really think you should give it a go building it yourself - if you don't try yo will never learn
Would this work with vegetable oil?
you would have to add something to prevent emulsification
Okay thanks!
Hey Rob, did you hear about a Cavitation heater? They seem to be more powerful then internal friction. Could you do a video about that or did you already did a video about Cavitation heater🤔?
The heater is fuelled by electricity.
so is this is getting friction from boundry layer effect and centrifugals ? as apposed to the cavitated version which i presume runs on cavitation ?
Ashes Wake yeah it's a boundary layer effect - or so i believe
your fingerlike graphene may excell as a coating for the inner side of the outer can if its hardy enough :)
Ashes Wake it probably would - but they are pretty harsh conditions mate - not sure if it would stand up to that kind of punishment
thats what i thought but because its graphene it may work especially if you think of graphenes unique qualities, tipped onto a copper can in a bowl of water its worth a try in my opinion aslong as you can dissipate the heat quick enough.
Ashes Wake I agree - i'll give it a go
Why not fill the inner with small rocks this would hold the temperature for a longer period
Imagine having big stirling engines on your roof that power friction water heaters, that heats the building, so the building is hot and the outside is cold, so a stirling engine would work!
I accidentally boiled water in a centrifugal water pump when it got switched on while the outlet valve was closed. The water around the impellor got so hot it melted the plastic components of the pump. Try it with your pool pump!
Any fluid will get hot if it has something agitating it violently in a confined space.
For example, auto transmissions get very hot without consuming the transmission oil.
I don’t think it is mysterious - it's friction between the impeller and the fluid.
Unless you have a free, or very cheap, source of energy to drive the electric motor that spins the rotor inside oil (or other fluid) confined in a small space, then you might want to use that energy to produce heat by way of an electric heater.
For example, if you had a waterwheel driving the impeller to make the fluid confined inside this unit hot, that would be cheap heat. But using an electric motor to drive the impeller to produce heat by friction would use more electrical energy than heat produced.
Solar power would not be much use as you likely wouldn’t need the heat on bright sunny days and storage batteries are too expensive in the capacity needed to drive a powerful enough electric motor long enough to produce useful heat.
Every time you change energy from one form to another, there is a loss of energy. So converting electrical energy into heat using friction to produce that heat, seems to be inefficient.
I did the same and had no clue what happened until just now 😂 I didn't even know this was a thing.
I enjoyed watching your video. Maybe speak a little clearer would help other understand what you have to say Sir. Peace too.
just burn coal?
The audio is lousy, making it difficult to understand what the gentleman is saying. Phooey. Do it again. Use a personal mic.
The constant maintenance would be a real pain in the ass which is why this stupid idea never took off.
Really enjoy it. Let's check Avasva plans also
What a waste of time...could you demonstrate what your doing as far from the camera as possible
Can't understand him! Bah! He's mumbling, the audio is terrible & he's speaking like he's trying to break a world record as the fastest talker. Talk slower, clearer, & have better audio. The info was actually really cool, but I only heard & understood a quarter of what he said.