[TEMPLATE]Renewable Energy[/TEMPLATE]
[TEMPLATE]Equipment & Tools[/TEMPLATE]
[TEMPLATE]home improvement store[/TEMPLATE]
Permanent Magnet Generator
Author: Gallen Ho
Experts in the fields of electricity and energy have devoted countless hours into creating a system which can live up to what people expect. Wind turbines and solar panels are familiar objects to many, but the permanent magnet generator isn't an item that is quite as well known.
Using solar panels to produce energy is typically the first choice for those who want to provide free energy to their house. Solar panels will not benefit you very much if you do not have adequate space on your roof, or enough space within the confines of your backyard.
Space is not a concern when you're using a permanent magnet generator. Because these generators are small in size, they won't take up much space. They can typically be kept within your house. Many people choose to keep their in the garage.
While wind turbines and solar panels require an outdoor setup, permanent magnet generators are not susceptible to adverse weather or other environmental conditions. Because of this, is costs very little to maintain this type of generator.
Should you decide to construct and install a generator of your own, it's completely capable of providing power for your entire home. A permanent magnetic generator operates by manipulating the movement of magnets using other magnets, creating perpetual motion within the motor. After this movement has started, it will not stop.
Due to this motion, your generator will create an increasing quantity of energy which can provide energy for your house. A generator can even produce more power than your whole household typically uses, also. This is because your permanent magnet generator never stops moving, and therefore never stops producing power.
So, if the question is 'Can a permanent magnet generator actually provide energy for my entire house?", the answer is yes. Just about anyone who can read a set of instructions is capable of assembling their own magnetic generator at home, also.
Article Source: http://www.articlesbase.com/diy-articles/permanent-magnet-generator-1761488.html
About the Author
Explore more about the new energy focus, the Zero Point Energy. Acquire wealth of information on how magnetic generators work, benefits and many other informative tips on saving electricity. Learn how to build a magnetic generator today; Master the true knowledge of generating free energy.
[TEMPLATE]amazon search[/TEMPLATE]
How do you build an electric motor without using permanent magnets?
I need to build an electric motor without any permanent magnets with a power source no greater than 9V any help including diagrams would be greatly appreciated. Thankyou
What are permanent magnets used for and what are electromagnets used for?
also if you can will you tell me what is more commonly used electomagnets or permanent magnets and why.
Permanent magnets?
How abundant are permanent magnets on earth? How powerful are they? Else, whats the best way of making permanent magnets? How much energy would be required to make a permanent magnet of say 5 Gauss (i hope i got the units right) out of a piece of Iron? How long will it last?
Is there a mathematical explanation as to why a motor cannot be made of only permanent magnets?
Only permanent magnets as in, it is powered by permanent magnets and not electro-magnets.
Will this set up with permanent magnets create heat through induction?
Suppose I have two permanent magnets at opposite sides of an imaginary circle, and in the middle of the circle, between the magnets, is a piece of iron attached to a stick attached to a motor. When the motor starts spinning the iron, will it heat up at all like in a typical induction heater with alternating current? Will I get any heat at all? Would it be more likely to work with 4 magnets around the perimeter instead of 2?
A very strong permanent magnet has more then 10,000 gauss so 5 gauss is not really much. The earth’s magnetic field is about 0.5 gauss. Refrigerator magnets have a few hundred gauss.
Pure iron is not good for making permanent magnets because it will not stay magnitized. Steel is better. You can turn a piece of steel – like a nail – into a magnet by stroking it with another magnet or by wrapping a wire a few times around the nail and then connect it very briefly to a car battery. Afterwards the nail will have become a permanent magnet. Unfortunatelly a car battery is so powerful that it will make the wire melt or explode if it’s too short. So if you don’t want to permanently fuse your hands with a piece of wire you better use a weaker battery. AA rechargeable batteries are best.
Permanent magnets have two weaknesses: 1- they cannot be modulated easily (i.e. have their magnetic field changed or turned off) and 2- they can loose their magnetism over time.
So, permanent magnets are not in as much use as electromagnets; but will still be used in the following items:
- small electric motor stator
- fridge magnet
- toys and novelty items
- compass
Electromagnets will then be used each time magnetic field of varying strength is required; for instance
- magnetic crane (picks up and dumps scrap iron in recycling metal porcessing, or manipulates fresh steel ingots at a steel mill)
- electric motor — including the high power ones that drive electric locomotives, for instance
- generator that produce electricity at power stations
- magnetic resonnance medical sensors
- any relay or selenoid (like the ones that lock and unlock a car doors remotely)
Basically, nearly every time there is motion and electricity is involved, there is an electromagnet in a form or another.
It’s more of a physics question. It is conservation of energy. Spinning a motor shaft requires energy. With no electrical input no energy is supplied to the system.
To be an electric motor, you must have magnets pushing against each other. If you don’t want to use permanent magnets then you need to use electro magnets. This is a very common kind of motor and is called a universal motor. It can be wired as series or parallel – this describes how the electro magnets on the stator (the ones that dont move) and the communatator (the ones that do move) are wired together.
A squirrel cage motor has no permanent magnets but a field is induced in the squirrel cage (hence its also called an induction motor) by the stator windings. This creates a magnetic field to push against i.e. bocomes an electromagnet.
You can build a very simple motor using a compass (ok that is a permanent magnet) and winding some coils of wire around the casing and then connecting it to an ac field. This has only 1 moving part – the compass
Yes it will heat up because of hysteresis losses. Actually steel will heat up a lot more than pure iron, because it has a wider B-H curve i.e. more hysteresis loss. More magnets around the perimeter will increase the effect, but it is ultimately limited by power from the motor.