3 ms·

I make high speed water pump from a microwave transformer

peter_d_sherman 4y ago
Here is the torsion field effect on water: https://youtu.be/WeVLT3i6aSA?t=449 https://youtu.be/WeVLT3i6aSA?t=449 Here is how the coils are wired (one coil is intentionally shorted): https://www.youtube.com/watch?v=WeVLT3i6aSA&t=394s https://www.youtube.com/watch?v=WeVLT3i6aSA&t=394s
- CamperBob2 4y ago
  Wow, that is the craziest thing. I've never heard of this effect. How is he priming it at 12:00? Seems like the water he's pouring in would just run right back down to the reservoir. Edit: never mind, sounds like there's a check valve.
mgsouth 4y ago
1. Why would spinning the water make it pump out? I didn't see any stator vanes inserted into the tube. 2. Why would the water spin? a. You would need a rotating magnetic field. For single-phase AC this means the equivalent to a shaded-pole motor [1] (which are inefficient). I haven't looked at what the second coil is supposed to be doing, so will give him a (very dubious) pass. b. How would a rotating magnetic field make the water spin? There is a magnetic moment to a water molecule, but its very, very weak [2]; an MRI needs superconducting magnets Teslas strong to see even microscopic effects. Magnetic stirrers are a thing [3], but they require a magnet or piece of metal in the medium which actually moves the water. 3. Claims 500m^3/hr, head (amount water is lifted) looks about a meter. Uh, no. That would be 8,300 liters (US: 2,200 gallons) per minute, 138 liters (36 gal) every second. Visually, looks more like 1/2 - 2 gallons/sec (30 - 120 gpm, 2 - 8 lps, 120 - 480 lpm, 7 - 30 m^3/hr) 4. Looking at pumps on Grainger: a. 115v, 0.10 hp, 855 gph @ 5 ft head. You'd need 150 of these to get the claimed flow. My estimated flow would need 2 - 8 of them. b. 115/230vac, 1/3 hp, 37 gpm @ 20 ft head. My estimated flow would require 1 - 4 of these. c. 115/230vac, 0.75 hp, 70 gpm @ 20 ft head. Claimed flow would require 30. My estimated flow would need between 0.5 to 2. So it looks like he's got about a 1/2 hp (0.35 kw) pump connected somewhere. While a microwave primary coil can handle 1 - 1.5 kw, there's no way he could get that kind of efficiency. [1] https://en.wikipedia.org/wiki/Shaded-pole_motor https://en.wikipedia.org/wiki/Shaded-pole_motor [2] https://lambdageeks.com/is-water-magnetic/ https://lambdageeks.com/is-water-magnetic/ [3] https://en.wikipedia.org/wiki/Magnetic_stirrer https://en.wikipedia.org/wiki/Magnetic_stirrer

Here is the torsion field effect on water: https://youtu.be/WeVLT3i6aSA?t=449 https://youtu.be/WeVLT3i6aSA?t=449 Here is how the coils are wired (one coil is intentionally shorted): https://www.youtube.com/watch?v=WeVLT3i6aSA&t=394s https://www.youtube.com/watch?v=WeVLT3i6aSA&t=394s

CamperBob2 4y ago
Wow, that is the craziest thing. I've never heard of this effect. How is he priming it at 12:00? Seems like the water he's pouring in would just run right back down to the reservoir. Edit: never mind, sounds like there's a check valve.

mgsouth 4y ago

1. Why would spinning the water make it pump out? I didn't see any stator vanes inserted into the tube. 2. Why would the water spin? a. You would need a rotating magnetic field. For single-phase AC this means the equivalent to a shaded-pole motor [1] (which are inefficient). I haven't looked at what the second coil is supposed to be doing, so will give him a (very dubious) pass. b. How would a rotating magnetic field make the water spin? There is a magnetic moment to a water molecule, but its very, very weak [2]; an MRI needs superconducting magnets Teslas strong to see even microscopic effects. Magnetic stirrers are a thing [3], but they require a magnet or piece of metal in the medium which actually moves the water. 3. Claims 500m^3/hr, head (amount water is lifted) looks about a meter. Uh, no. That would be 8,300 liters (US: 2,200 gallons) per minute, 138 liters (36 gal) every second. Visually, looks more like 1/2 - 2 gallons/sec (30 - 120 gpm, 2 - 8 lps, 120 - 480 lpm, 7 - 30 m^3/hr) 4. Looking at pumps on Grainger: a. 115v, 0.10 hp, 855 gph @ 5 ft head. You'd need 150 of these to get the claimed flow. My estimated flow would need 2 - 8 of them. b. 115/230vac, 1/3 hp, 37 gpm @ 20 ft head. My estimated flow would require 1 - 4 of these. c. 115/230vac, 0.75 hp, 70 gpm @ 20 ft head. Claimed flow would require 30. My estimated flow would need between 0.5 to 2. So it looks like he's got about a 1/2 hp (0.35 kw) pump connected somewhere. While a microwave primary coil can handle 1 - 1.5 kw, there's no way he could get that kind of efficiency. [1] https://en.wikipedia.org/wiki/Shaded-pole_motor https://en.wikipedia.org/wiki/Shaded-pole_motor [2] https://lambdageeks.com/is-water-magnetic/ https://lambdageeks.com/is-water-magnetic/ [3] https://en.wikipedia.org/wiki/Magnetic_stirrer https://en.wikipedia.org/wiki/Magnetic_stirrer