ATTN: ALL MAJOR POWERHEAD MANUFACTURERS

[siggy]

their is a loss on the output side. I installed a 150 KVA iso-trans last year and the loss is now under 3% in the 80's i think 15%. remember you are still creating electricity on the other side then need the motor

 

[redfishbluefish]

I just skimmed this post and didn't look at the video, but I believe what is being proposed is not passing electricity through the glass/water (that won't work), but an oscillating magnetic field. On the wet side you would now have a "generator" that utilizes that changing magnetic field to create electricity.....that would then run the motor for the powerhead. I think size is going to be the issue, having to have a generator and motor on the wet side for this thing to work.

 

[Dburr1014]

Power lost, sure, but how much? Is it significant? I think it's worth ($$$) investigating.

Like 50% View attachment 10.1.1.878.9179.pdf

 

[mta_morrow]

Well Somebody would like to know the why behind the answer of "no can do"

I want to learn something new today. ;Smuggrin

@Brew12 could probably give a good theoretical answer, better than me. I know the answer because its the stuff I worked on and repaired / installed for about 25 years., but explaining theory is not my strong suit at all...………..but I will try.

the "no can do", is something like this...….take a transformer for example, its comprised of 2 "coils" with an airgap in between. You have the high voltage on one side, inducing a voltage through the airgap to the coil on the other side. This can be done to step up, or step down the voltage.

now, if you were to surround one of those coils with water, the electricity traveling through the water to the other coil would dissipate in the water......especially salt water. Theoretically pure water with 0 TDS could conduct electricity very well, buy you cant direct which way it travels through water.

Again...…….I am NOT a theory guy, I am a "fix it and make it work" guy.

I hope this helps a bit, if not, let's get @Brew12 involved.

 

[LowLi]

def would be allot of money rip

 

[tsav87]

@Brew12 could probably give a good theoretical answer, better than me. I know the answer because its the stuff I worked on and repaired / installed for about 25 years., but explaining theory is not my strong suit at all...………..but I will try.

the "no can do", is something like this...….take a transformer for example, its comprised of 2 "coils" with an airgap in between. You have the high voltage on one side, inducing a voltage through the airgap to the coil on the other side. This can be done to step up, or step down the voltage.

now, if you were to surround one of those coils with water, the electricity traveling through the water to the other coil would dissipate in the water......especially salt water. Theoretically pure water with 0 TDS could conduct electricity very well, buy you cant direct which way it travels through water.

Again...…….I am NOT a theory guy, I am a "fix it and make it work" guy.

I hope this helps a bit, if not, let's get @Brew12 involved.

Thanks. Is it a magnetic field connecting the two coils?

Edit, maybe I should have worded it this way: Is the transfer of energy between the coils done through a magnetic field?

 

[tsav87]

def would be allot of money rip

Have you seen the cost of aquarium products in general? lol, esp name brand products.

 

[mta_morrow]

is Bill Nye the science guy on R2R?

 

[tsav87]

is Bill Nye the science guy on R2R?

;Hilarious

 

[siggy]

 

[tsav87]

You're gonna have to explain that....lol

 

[Crabs McJones]

is Bill Nye the science guy on R2R?

 

[mta_morrow]

Thanks. Is it a magnetic field connecting the two coils?

Edit, maybe I should have worded it this way: Is the transfer of energy between the coils done through a magnetic field?

When electricity (current) is applied to the primary coil, it creates a magnetic field, or technically "magnetic flux" This magnetic flux induces a current into the second coil. This is all called electro-magnetic induction. Both of these coils are wrapped around a core, usually a soft metal like iron.

 

[siggy]

When electricity (current) is applied to the primary coil, it creates a magnetic field, or technically "magnetic flux" This magnetic flux induces a current into the second coil. This is all called electro-magnetic induction. Both of these coils are wrapped around a core, usually a soft metal like iron.

In most app they share a iron core but not always, Induction heat treating, foundry and hot plates use induction to transfer energy at high Frequencies to heat or power

 

[Brew12]

@Brew12 could probably give a good theoretical answer,

Thanks for the invite!

It is not only possible for this concept to be done with a powerhead, but it isn't even technically challenging. I'm confident I could build one in my garage (if I were to violate some patents, of course!).

I just skimmed this post and didn't look at the video, but I believe what is being proposed is not passing electricity through the glass/water (that won't work), but an oscillating magnetic field. On the wet side you would now have a "generator" that utilizes that changing magnetic field to create electricity.....that would then run the motor for the powerhead. I think size is going to be the issue, having to have a generator and motor on the wet side for this thing to work.

This is the challenge. It's not a technical challenge, it is an aesthetic, cost, and practicallity challenge. On the inside of the tank you would need a power antenna, a control antenna, a solid state convertor/invertor combination with its control system, and the motor.

Think of the size of the typical DC motor controller. That would now have to be in your tank. Think of how much heat it gives off. This would now go into your aquarium water. If you want it to only run at a single speed like an AC pump, some of this could be reduced, but not much. If you want variable speed, that functionality needs to be carried out inside the tank. You would either need to go with something strictly pre-programmed or you would need a way to deliver and receive that control system underwater.

We also have to consider the impact of this rather strong magnetic field on our aquarium inhabitants. I have a feeling that our fish and coral would have a negative response to these relatively strong oscillating magnetic waves.

 

[themcfreak]

Thanks for the invite!

It is not only possible for this concept to be done with a powerhead, but it isn't even technically challenging. I'm confident I could build one in my garage (if I were to violate some patents, of course!).



This is the challenge. It's not a technical challenge, it is an aesthetic, cost, and practicallity challenge. On the inside of the tank you would need a power antenna, a control antenna, a solid state convertor/invertor combination with its control system, and the motor.

Think of the size of the typical DC motor controller. That would now have to be in your tank. Think of how much heat it gives off. This would now go into your aquarium water. If you want it to only run at a single speed like an AC pump, some of this could be reduced, but not much. If you want variable speed, that functionality needs to be carried out inside the tank. You would either need to go with something strictly pre-programmed or you would need a way to deliver and receive that control system underwater.

We also have to consider the impact of this rather strong magnetic field on our aquarium inhabitants. I have a feeling that our fish and coral would have a negative response to these relatively strong oscillating magnetic waves.

I hadn't even thought of the heat. Phones get very warm when charging, probably because of something similar to this. Exciting to know it could be done though. If it gets done once or twice, then refinements start coming.. that is how stuff gets better!

 

[Brew12]

I hadn't even thought of the heat. Phones get very warm when charging, probably because of something similar to this. Exciting to know it could be done though. If it gets done once or twice, then refinements start coming.. that is how stuff gets better!

It may happen in the future, but right now we aren't even close. It will take some breakthrough in material sciences to make it practical for home aquariums.

Think about this. The typical wireless phone charger generates around 5 watts. To generate 5 watts it takes around 7.5 watts. At full speed an MP40QD uses around 40watts. To do this wireless would take around 60watts. Almost all of these extra losses will be in the form of heat so each pump would act like a 30w heater that was always on (About 10w of the MP40QD is lost in the controller as heat, which will now be in the aquarium).

 

[siggy]

Ok don't let that take your wind, How many of you have motors running in your tank? that is already a constant. The challenge is to create a secondary that also rotates or spins .Iso-trans can be a 1 to 1 ratio meaning that 100 volts in is 100 volts out, so motor speed & rotation correlates with voltage % and polarity that is already how most run. The challenge is to create a secondary that also rotates or spins and is water proof

 

[themcfreak]

Here's an idea to any and all manufacturers of aquarium powerheads. Wireless Electricity.

Put the pump propeller and motor inside of the tank, on a swivel to make it directional, hold it with a magnet from the outside, have a power cord attached to the outside magnet and supply wireless electricity to the motor inside of the aquarium. Boom, no wires, and you could point it in any direction.

There, that's my idea. No idea if it's possible, but.....maybe...

Thoughts anyone?

Just to make sure I am reading your post, you are thinking of the Octopus Pulse and the Vortech having a baby, right? Move around/flexible, but with cord outside, right? haha

 

[siggy]

Just to make sure I am reading your post, you are thinking of the Octopus Pulse and the Vortech having a baby, right? Move around/flexible, but with cord outside, right? haha

the best of both worlds