Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #633240

Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done??

Show all headers | View raw

Dne 14/05/2017 v 09:31 Archimedes Plutonium napsal(a):
> Well, this has momentarily set me back. To think that radioactivity of electrons cannot be harnessed directly as electricity but has to be converted to heat then electricity.
> 
Direct conversion of beta particles to electric current
would be extremely lossy process.

It is like if you would power your device
from 1 megavolt DC source,
using a resistor to waste 999 991 Volts,
to get just 9 volts the device requires.

Thermocouples are several orders more efficient.

There are attempts
to use Stirling heat engine with the closed cycle,
together with a generator, that would be more efficient
than thermocouples.

But this has reliability disadvantage of moving parts.

https://en.wikipedia.org/wiki/Stirling_engine

-- 
Poutnik ( The Pilgrim, Der Wanderer )

A wise man guards words he says,
as they say about him more,
than he says about the subject.

Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-12 23:36 -0700
  gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-13 02:01 -0700
    gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-13 02:52 -0700
      ArchiePoo's speed of light means an upper bound of photon wavelength "hanson" <hanson@quick.net> - 2017-05-13 07:35 -0700
      Unification of Weak Nuclear with EM// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-13 16:37 -0700
        trying to get a sense of engineering a given amount of radioactive substance to run electrical equipment-- say a heater Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-13 23:08 -0700
          Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-13 23:18 -0700
            Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-14 00:31 -0700
              Seebeck effect//Radioisotope Thermoelectric Generator Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-14 01:29 -0700
                Re: Seebeck effect//Radioisotope Thermoelectric Generator Poutnik <poutnik4nntp@gmail.com> - 2017-05-14 14:52 +0200
              Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Poutnik <poutnik4nntp@gmail.com> - 2017-05-14 15:03 +0200
                got to start over with Weak unification to EM Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-05-14 11:29 -0700
                Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Lofty Goat <rlwatkins@gmail.com> - 2017-05-15 21:17 -0500
                Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-05-16 05:20 +0000
                Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Poutnik <poutnik4nntp@gmail.com> - 2017-05-16 07:50 +0200
                Re: Sr-90;; engineering Beta rays directly into electricity-- can it be done?? Poutnik <poutnik4nntp@gmail.com> - 2017-05-16 08:36 +0200
  Re: gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray poraty350@gmail.com - 2017-05-13 05:00 -0700
    Re: gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray poraty350@gmail.com - 2017-05-13 05:14 -0700
  Re: gamma rays are not photons at all but a combo of mass particles// the upper bound of speed of light means an upper bound of photon wavelength = some X-ray "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-05-13 11:39 -0700

csiph-web