Groups > sci.physics.relativity > #425776

Re: Question about power capacity of electrical motors.

From	rickman <gnuarm@gmail.com>
Newsgroups	sci.physics.relativity, sci.physics, sci.physics.electromag, sci.electronics.design
Subject	Re: Question about power capacity of electrical motors.
Date	2017-07-21 15:10 -0400
Organization	A noiseless patient Spider
Message-ID	<oktjbb$b76$2@dont-email.me> (permalink)
References	(7 earlier) <m2j94e-1on.ln1@mail.specsol.com> <oktar5$f06$1@dont-email.me> <p4p94e-ebo.ln1@mail.specsol.com> <okte8q$qqu$2@dont-email.me> <cgs94e-6oo.ln1@mail.specsol.com>

Cross-posted to 4 groups.

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jimp@specsol.spam.sux.com wrote on 7/21/2017 2:07 PM:
> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>> jimp@specsol.spam.sux.com wrote on 7/21/2017 1:10 PM:
>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 11:26 AM:
>>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>>>> jimp@specsol.spam.sux.com wrote on 7/15/2017 10:13 PM:
>>>>>>> In sci.physics.electromag Robert Clark <rgregoryclark@gmspambloackail.com> wrote:
>>>>>>>> In sci.physics Garfield Dieter <igdle@rdlge.rf> wrote:
>>>>>>>>>> jimp wrote:
>>>>>>>>>>
>>>>>>>>>>> In sci.physics.electromag Robert Clark
>>>>>>>>>>> <rgregoryclark@gmspambloackail.com>
>>>>>>>>>>> wrote:
>>>>>>>>>>>> I read that the Tesla electric motor is able to achieve its remarkable
>>>>>>>>>>>> power to weight ratio of 8.5 kW/kg, about 10 times better than a
>>>>>>>>>>>> typical gasoline engine, because it tightly winds its copper wires in
>>>>>>>>>>>> its coils therefore being able to carry more current in the same space.
>>>>>>>>>>>> If so, then we should be able to produce more power if we have a
>>>>>>>>>>>> material that can carry more current.
>>>>>>>>>>>
>>>>>>>>>>> We have such a material and it is called silver.
>>>>>>>>>>
>>>>>>>>>> Gold is much better, something you don't know.
>>>>>>>>>
>>>>>>>>> Nope.
>>>>>>>>>
>>>>>>>>> Resistivity at 20 C in Ohm meter
>>>>>>>>>
>>>>>>>>> Silver 1.59 X 10-8
>>>>>>>>> Copper 1.68 X 10-8
>>>>>>>>> Gold   2.44 X 10-8
>>>>>>>>>
>>>>>>>>> https://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity
>>>>>>>>>
>>>>>>>>> Gold is only used in electrical applications because of it's corrosion
>>>>>>>>> resistance.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>> I was current density I was most interested in.
>>>>>>>
>>>>>>> Yes, because you are clueless about the real world and don't understand
>>>>>>> the limits of electrical motors is heat rise due to resistive losses.
>>>>>>
>>>>>> And what are the resistive losses in nanotube composites compared to copper?
>>>>>
>>>>> All the references I have say they are higher, do you have somthing that
>>>>> says otherwise?
>>>>
>>>> How about the original article?
>>>
>>> What about it?
>>>
>>>> Importantly, the researchers were able to achieve this high current density
>>>> tolerance without sacrificing the electrical conductivity of the material,
>>>> which is similar to that of pure copper.
>>>
>>> So what?
>>>
>>>> "This is the first such material, to the best of my knowledge, that can have
>>>> high electrical conductivity and high current density tolerance,"
>>>> Subramaniam points out.
>>>
>>> So what?
>>>
>>>> Then there is this publication.
>>>>
>>>> https://www.ifam.fraunhofer.de/content/dam/ifam/en/documents/dd/Infobl%C3%A4tter/metal-carbon_nanotube_composites_fraunhofer_ifam_dresden.pdf
>>>
>>> So what?
>>>
>>>> You understand this is a *new* material they are talking about, no?  The
>>>> focus of the research seems to be on uses for conductors in integrated
>>>> circuits where other aspects than conductivity are limiting.
>>>
>>> So what?
>>>
>>> The issue is temperature rise due to resistive losses, not anything else.
>>
>> You said the resistivity of the CU-CNT material is worse than copper.  Just
>> setting the record straight.
>
> Where?

See above.

 >>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 11:26 AM:
 >>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
 >>>>>>
 >>>>>> And what are the resistive losses in nanotube composites compared to 
copper?
 >>>>>
 >>>>> All the references I have say they are higher

-- 

Rick C

Thread

Re: Question about power capacity of electrical motors. Garfield Dieter <igdle@rdlge.rf> - 2017-07-15 18:57 +0000
  Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-15 19:36 +0000
    Re: Question about power capacity of electrical motors. Garfield Dieter <igdle@rdlge.rf> - 2017-07-15 19:52 +0000
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-15 20:11 +0000
        Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-16 00:49 -0400
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 18:25 +0000
          Re: Question about power capacity of electrical motors. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-07-17 22:34 +0200
        Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 14:53 +0000
          Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:49 -0500
            Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 16:05 +0000
      Re: Question about power capacity of electrical motors. Sylvia Else <sylvia@not.at.this.address> - 2017-07-16 12:24 +1000
        Re: Question about power capacity of electrical motors. Garfield Dieter <igdle@rdlge.rf> - 2017-07-16 11:14 +0000
          Re: Question about power capacity of electrical motors. Garfield Dieter <igdle@rdlge.rf> - 2017-07-16 11:18 +0000
          Re: Question about power capacity of electrical motors. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-16 12:35 +0000
            Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 10:07 -0500
              Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:09 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 13:24 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:36 +0000
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 19:22 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 18:47 -0500
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 00:48 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 14:56 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:50 -0500
                Re: Question about power capacity of electrical motors. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-07-17 22:37 +0200
            Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:08 +0000
              Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 13:26 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:36 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 16:55 -0500
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 01:09 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 14:59 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:51 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 16:01 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:59 -0500
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-17 16:52 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 14:33 -0500
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-17 20:05 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 18:10 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-17 23:59 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 22:33 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 04:03 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 18:23 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 00:00 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 22:33 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 04:04 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 20:03 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-20 01:14 +0000
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-18 17:08 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-18 12:38 -0500
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-18 17:44 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-18 12:47 -0500
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-18 17:54 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 20:25 -0400
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-19 21:19 -0500
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 20:22 -0400
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-20 16:55 +0000
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 17:36 +0000
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-18 17:55 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-18 15:36 -0500
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-18 21:36 +0000
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-19 20:21 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 20:32 -0400
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-20 16:52 +0000
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 14:58 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:52 -0500
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 18:40 +0000
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:49 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 19:13 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:03 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:53 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:53 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 16:56 -0500
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 00:57 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:11 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:55 -0500
            Re: Question about power capacity of electrical motors. "Paul B. Andersen" <relativity@paulba.no> - 2017-07-16 20:35 +0200
              Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:40 +0000
                Re: Question about power capacity of electrical motors. "Paul B. Andersen" <relativity@paulba.no> - 2017-07-16 21:19 +0200
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 19:30 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 16:59 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:14 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:56 -0500
                Re: Question about power capacity of electrical motors. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-17 02:02 +0000
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 02:02 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:21 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 10:59 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:17 +0000
                Re: Question about power capacity of electrical motors. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-17 15:55 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:01 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 16:09 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:58 -0500
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 01:01 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:22 +0000
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 01:45 -0400
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:33 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:04 -0500
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 19:25 +0000
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 20:11 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 17:01 -0500
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 22:19 +0000
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 01:10 -0400
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 08:41 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:34 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:05 -0500
                Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 16:07 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:56 -0500
                Re: Question about power capacity of electrical motors. Ustin Veterre <utve@nauoe.ct> - 2017-07-17 22:06 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 18:01 -0500
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 22:27 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-17 16:58 +0000
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 18:26 +0000
            Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-16 18:47 +0000
              Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-16 17:01 -0500
            Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 00:46 -0400
              Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 08:43 -0500
              Re: Question about power capacity of electrical motors. Winfred Plumer <lewru@pulwr.cn> - 2017-07-17 15:35 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 11:06 -0500
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-17 16:59 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 18:15 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 00:02 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-17 22:35 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-18 04:05 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 20:04 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-20 01:15 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-19 21:43 -0400
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-19 21:23 -0500
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-20 03:42 +0000
                Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-20 11:29 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-20 17:27 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-20 19:17 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 00:15 +0000
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-20 21:20 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 01:41 +0000
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-21 09:55 -0500
    Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-15 21:46 -0400
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 02:13 +0000
        Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 05:49 -0400
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 15:26 +0000
            Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 12:45 -0400
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 17:10 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:43 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 18:07 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 15:10 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 19:32 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 17:32 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 22:11 +0000
              Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-22 10:51 -0400
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-22 17:55 -0500
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-22 17:58 -0500

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