New electric motor reduces energy consumption up to 80%

[markdansie]

This should be a real hoot fro QmoGen experimentors and Keppe motor fans


http://revolution-green.com/new-electric-motor-reduces-energy-consumption-up-to-80/


Kind Regards
Mark

[tinman]

This should be a real hoot fro QmoGen experimentors and Keppe motor fans


http://revolution-green.com/new-electric-motor-reduces-energy-consumption-up-to-80/


Kind Regards
Mark

OK,i dont get it
We already have electric motors with efficiencies of 97%.
So what is so good about an efficiency of between 75 and 80%?

Ok,so there motors use-Quote: Piper said: "Our motor uses 50 to 80 percent less energy than current motors,

So if current motors are say 60% efficient,and 50% of that is 30,then there motors are 80% efficient?.

Hey,maybe there onto something,as Jerard Morins waste water pump from a washing machine uses a PM rotor that runs on an AC current-->and he has OU

[lancaIV]

                            "..... up to 80%..." related to "fix-speed-electric motors ?"
https://web.archive.org/web/20040809192036/http://www.flynnresearch.net/Page_4.htm
Behind QMpower is the Parallel-Path-Technology developed by the Flynn brothers !

"Joe Flynn and his two dozen co-workers at QM Power in suburban Kansas City think about motors every day – and now they have one for sale that federal researchers say could save half a billion dollars in energy costs every year.
It's called the Q-Sync Smart Synchronous Motor, and Flynn says it is "one of the coolest things" he's ever invented."

1/3,47 ~ -70% less electric power for energizing the electric magnets !
                          + variable speed controller savings

Also positive : no RE-magnets application but ferrite C5/C8 magnets.

https://web.archive.org/web/20040804000511/http://www.flynnresearch.net/Table_of_Contents.htm

about savings between fix and variable speed motors :
http://energy.gov/eere/amo/variable-speed-low-cost-motor-residential-hvac-systems
Existing HVAC systems use low-cost, low-efficiency, single-speed permanent split capacitor induction motors. These motors are cycled on and off as required by a thermostat. A variable-speed motor running continuously at a half speed uses 25% of the power to move the same amount of air.
                                                           = less 75% !

[MileHigh]

This thing doesn't smell right to me at all.  So they are comparing their motor to an ancient and inefficient shaded pole motor.  In today's day and age I seriously doubt that is a fair comparison when you talk about buying modern building HVAC equipment.  The energy costs for the fan ventilation for a big refrigerator is (my guess) perhaps only 5% of the total cost.  It's the big motors that run the compressors that consume the vast majority of the energy.  Therefore, any alleged improvements in fan motor efficiency are only going to take a small bite out of refrigeration energy costs.

I am going to issue the caveat that I am not going to do any research on this stuff.  Nonetheless, can anybody understand the attached  performance graph?  I can't make head or tail of it.  I am willing to bet you that you won't find similar graphs for established suppliers of fan motors.

The "green building" trend is at least 15 years old.  So for the last 15 years building designers and the associated building industry has been looking at all angles for improving building energy efficiency.  Do you think the people in the HVAC industry have been asleep at the wheel?

Also, going into buildings and ripping out old fan motors and replacing them with new fan motors is simply not a practical proposition.  I am just not feeling it.

The grandiose claims don't feel right to me and I bet you that the fan motor efficiency issue has already been dealt with by the industry.  These guys are just trying to over-promote themselves with marketing hype because getting even a tiny tiny sliver of the building construction industry is big money.  I really doubt that they have a better mousetrap and the other players in the multi-billion dollar electrical motor industry servicing the multi-billion dollar HVAC industry have been standing idly by.

I am not going to spend a few hours doing research to back up any of my statements but I feel if the research was done my statements would be vindicated.

[allcanadian]

@Milehigh

This thing doesn't smell right to me at all.  So they are comparing their motor
to an ancient and inefficient shaded pole motor.  In today's day and age I
seriously doubt that is a fair comparison when you talk about buying modern
building HVAC equipment.  The energy costs for the fan ventilation for a big
refrigerator is (my guess) perhaps only 5% of the total cost.  It's the big
motors that run the compressors that consume the vast majority of the energy. 
Therefore, any alleged improvements in fan motor efficiency are only going to
take a small bite out of refrigeration energy costs.

It sounds fairly straightforward I think. We all know the industry standard induction motor uses conductive bars in the rotor shorted on the ends while the motors in question use permanent magnets in the rotor. What does this tell you?, the standard induction motor rotor bars always need "slip" to induce large currents in them which allows the rotor field to follow or synch with the AC stator field. With a PM rotor the rotor field still locks onto the stator field once up to speed however obviously there is no slip or large currents induced in the rotor thus greatly reduced losses. I imagine this new technology uses electronics to limit current on startup and probably some kind of device to ramp up the stator drive frequency slowly until the rotor can synch up with the stator field.

Modern HVAC units have VFD's which use expensive electronics to vary the frequency of a standard induction motor. They still have induction motor rotor losses as well as losses in the VFD electronics. To my knowledge there is nothing more efficient than a PM rotor synched (no slip) with the AC stator field and no electronics. The only issue is that it is not self-starting which is why the start up electronics are needed. So what have they actually done?, they invented a dirt cheap VFD only required on startup for an AC permanent magnet motor. It's a brilliant idea in my opinion and no other AC motor system could possibly be more efficient because of all there inherent design flaws.
Conclusion... it's game changer if the price is comparable.

AC