- #1
GiZeHy
- 15
- 0
Hi there,
i have a specific question concerning power consumption in a rotating system and hope that somebody out there can help me out.
Lets say we have a wheel, powered by an e-motor, that is surrounded by magnets that are attached to the edge of the wheel ( like a cog wheel but magnets instead of the cogs ). Now i place an identical wheel aside so that it is brought to movement by the first one (by the magnets). My question is: How much more power do i have to put into the e-motor that is making the first wheel spin, to make a second, third and so on.. wheel spin at the same rotation speed, that are aside the first one? Is there any other power stopping the additional wheels instead of the friction of air and the attachment? Important: i mean the additional power that is consumed when the system is already running!
Any help would be really nice ;)
ty
i have a specific question concerning power consumption in a rotating system and hope that somebody out there can help me out.
Lets say we have a wheel, powered by an e-motor, that is surrounded by magnets that are attached to the edge of the wheel ( like a cog wheel but magnets instead of the cogs ). Now i place an identical wheel aside so that it is brought to movement by the first one (by the magnets). My question is: How much more power do i have to put into the e-motor that is making the first wheel spin, to make a second, third and so on.. wheel spin at the same rotation speed, that are aside the first one? Is there any other power stopping the additional wheels instead of the friction of air and the attachment? Important: i mean the additional power that is consumed when the system is already running!
Any help would be really nice ;)
ty
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