Re: Interessant maar ook ontstellend
Sien
ook? ?
? Enkele wetenskaplikes soos Fred Singer en Fred
Seitz het ook meegedoen aan die leuens oor tabak en
klimaatsverandering.
On 2025/01/09 09:20, Wolhuter, Riaan,
Dr [ wolhuter@...] via groups.io wrote:
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Ongelukkig
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En na
aan die kol.
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Prof
Riaan Wolhuter?
|? PhD Pr Eng SMIEEE SMSAIEE
Associate
Professor Extraordinary:
DSP-Telecommunications
Electrical-
& Electronic Eng?
Stellenbosch
University
e:
wolhuter@...?
| ?t: +27 83?444 5220? |? Dept E &
E Eng,
?
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and confidentiality of this email are governed
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Re: Interessant maar ook ontstellend
Gevolgtrekking: Propaganda - dus meesal geld(belange) - maak dat mense politici glo van wie hulle weet dat hulle lieg.
dieterholm@...Tel ? 012 371 3389 Cell 083 287 3220 PO Box 58, Hartbeespoort 0216 South Africa
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Ongelukkig ? ? CAUTION: This email originated from outside the Stellenbosch University network. Do not click links or open attachments unless you recognize the sender and know the content is safe. ? En na aan die kol.
? ? Prof Riaan Wolhuter? |? PhD Pr Eng SMIEEE SMSAIEE?
Associate Professor Extraordinary: DSP-Telecommunications Electrical- & Electronic Eng? Stellenbosch University ? The and confidentiality of this email are governed by these terms.?
Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bere?l.? ?
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Re: Interessant maar ook ontstellend
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From: [email protected] <[email protected]>
On Behalf Of Pieter Van der Walt via groups.io
Sent: Thursday, 09 January 2025 09:13
To: ZA_energie <[email protected]>
Subject: Re: [ZA-energie] Interessant maar ook ontstellend
?
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En na aan die kol.
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Prof Riaan Wolhuter? |? PhD Pr Eng SMIEEE SMSAIEE
Associate Professor Extraordinary: DSP-Telecommunications
Electrical- & Electronic Eng?
Stellenbosch University
e:
wolhuter@...? | ?t: +27 83?444 5220? |? Dept E &
E Eng,
?
The and confidentiality of this email are governed by these terms.
Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bere?l.
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Re: Interessant maar ook ontstellend
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Prof Riaan Wolhuter?
|? PhD Pr Eng SMIEEE SMSAIEE
Associate Professor Extraordinary: DSP-Telecommunications
Electrical- & Electronic Eng?
Stellenbosch University
e:
wolhuter@...? | ?t:
+27 83?444 5220? |? Dept E & E Eng,
?
The and confidentiality of this email are governed by these terms.
Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bere?l.
?
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Interessant maar ook ontstellend
?
?
Prof Riaan Wolhuter?
|? PhD Pr Eng SMIEEE SMSAIEE
Associate Professor Extraordinary: DSP-Telecommunications
Electrical- & Electronic Eng?
Stellenbosch University
e:
wolhuter@...? | ?t:
+27 83?444 5220? |? Dept E & E Eng, Banghoek Rd, Stellenbosch, South Africa
?
The and confidentiality of this email are governed by these terms.
Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bere?l.
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Re: Suid- en Wes Australie se sonpanele op dakke
Die skade is onberekenbaar
?
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From: [email protected] <[email protected]>
On Behalf Of Pieter Van der Walt via groups.io
Sent: Tuesday, 07 January 2025 14:13
To: ZA_energie <[email protected]>
Subject: Re: [ZA-energie] Suid- en Wes Australie se sonpanele op dakke
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Ons kon baie nader daaraan gewees het. Dankie Gwede.
?
Portugal sowel as Spanje kry elk sowat 40% van al hulle elektrisiteit uit son- en windkrag.? En Denemarke sowat 65%.? En (waarskynlik a g v hul konneksie met die wyer Europese kragnet, en
ten spyte van doemprofete) lyk dit nie asof dit lei tot onstabiliteit in hulle kragnetwerke nie.
On 2025/01/07 07:45, bernhard wrote:
Panele op dakke lewer heelwat meer as 21.7% en 26% van kragnet se totaal.? Daardie persentasies is maar wat hulle aan die kragnet
teruglewer, en sluit nog gladnie krag in wat hulle aan die geboue lewer waarop hulle geinstalleer is nie.? Dit sluit ook nie sonplase of windkrag in nie.
On-roof solar panels feed back considerably more than 21.7% and 26% of the grid total in these huge provinces
of Australia.? Those percentages are merely what they feed back into the grid, and do not include power which they deliver to the building on whose roofs the are installed.? These also do not include solar farms or wind power.
The integrity and confidentiality of this email are governed by these terms.
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Re: Suid- en Wes Australie se sonpanele op dakke
Ons kon baie nader daaraan gewees het. Dankie Gwede.
Portugal
sowel as Spanje kry elk sowat 40% van al hulle elektrisiteit uit
son- en windkrag.? En Denemarke sowat 65%.? En (waarskynlik a g
v hul konneksie met die wyer Europese kragnet, en ten spyte van
doemprofete) lyk dit nie asof dit lei tot onstabiliteit in hulle
kragnetwerke nie.
On 2025/01/07 07:45, bernhard wrote:
Panele op
dakke lewer heelwat meer as 21.7% en 26% van kragnet se
totaal.? Daardie persentasies is maar wat hulle aan die
kragnet teruglewer, en sluit nog gladnie krag in wat
hulle aan die geboue lewer waarop hulle geinstalleer is nie.?
Dit sluit ook nie sonplase of windkrag in nie.
On-roof
solar panels feed back considerably more than 21.7% and 26% of
the grid total in these huge provinces of Australia.? Those
percentages are merely what they feed back into the grid, and
do not include power which they deliver to the building on
whose roofs the are installed.? These also do
not include solar farms or wind power.
|
Re: Suid- en Wes Australie se sonpanele op dakke
Portugal
sowel as Spanje kry elk sowat 40% van al hulle elektrisiteit uit
son- en windkrag.? En Denemarke sowat 65%.? En (waarskynlik a g
v hul konneksie met die wyer Europese kragnet, en ten spyte van
doemprofete) lyk dit nie asof dit lei tot onstabiliteit in hulle
kragnetwerke nie.
On 2025/01/07 07:45, bernhard wrote:
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Panele op
dakke lewer heelwat meer as 21.7% en 26% van kragnet se
totaal.? Daardie persentasies is maar wat hulle aan die
kragnet teruglewer, en sluit nog gladnie krag in wat
hulle aan die geboue lewer waarop hulle geinstalleer is nie.?
Dit sluit ook nie sonplase of windkrag in nie.
On-roof
solar panels feed back considerably more than 21.7% and 26% of
the grid total in these huge provinces of Australia.? Those
percentages are merely what they feed back into the grid, and
do not include power which they deliver to the building on
whose roofs the are installed.? These also do
not include solar farms or wind power.
|
Suid- en Wes Australie se sonpanele op dakke
Panele op
dakke lewer heelwat meer as 21.7% en 26% van kragnet se
totaal.? Daardie persentasies is maar wat hulle aan die kragnet
teruglewer, en sluit nog gladnie krag in wat hulle aan
die geboue lewer waarop hulle geinstalleer is nie.? Dit sluit
ook nie sonplase of windkrag in nie.
On-roof
solar panels feed back considerably more than 21.7% and 26% of
the grid total in these huge provinces of Australia.? Those
percentages are merely what they feed back into the grid, and do
not include power which they deliver to the building on whose
roofs the are installed.? These also do not
include solar farms or wind power.
|
|
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Re: Move to green energy was slowed down by government to protect coal mining
Wat verwag ons met iemand soos Mantashe aan die stuur? En dit wat hulle moet doen, gebeur nie. Oa, daardie area rondom Witbank is ¡®n ekologiese ramp
met suur- en ander minerale besoedeling van riviere en die omgewing. Daar is geen beheer hieroor deur sy Dept nie. Ek was al jare gelede daar op ¡®n plaas waardeur ¡®n lang stuk van die boloop van die Olifantsrivier vloei. Die pH van die water was 3. Biologies
steriel met nie eers ¡®n padda wat daarin kon leef nie. Dis nou veel erger.
Wat ¡®n klomp polities gedrewe super-onbevoegdes.
?
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From: [email protected] <[email protected]>
On Behalf Of bernhard via groups.io
Sent: Monday, 06 January 2025 07:17
To: [email protected]
Subject: [ZA-energie] Move to green energy was slowed down by government to protect coal mining
?
CAUTION: This email originated from outside the Stellenbosch University network. Do not click links or open attachments
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"The department was involved in a conflict of interest. The move towards renewable energy was at odds with the department¡¯s support for the minerals
sector, including coal. The department was committed to continuing fossil fuel mining. For example, it took on the job of issuing environmental authorisations to companies applying for mines and waste management licences. This job was previously done by the?. Having Mineral Resources and Energy promoting fossil fuel mining and approving mining companies plans to protect the environment turned it into the ¡°¡±."
The integrity and confidentiality of this email are governed by these terms.
Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bere?l.
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Move to green energy was slowed down by government to protect coal mining
"The
department was involved in a conflict of interest. The move
towards renewable energy was at odds with the department¡¯s
support for the minerals sector, including coal. The
department was committed to continuing fossil fuel mining.
For example, it took on the job of issuing environmental
authorisations to companies applying for mines and waste
management licences. This job was previously done by the?.
Having Mineral Resources and Energy promoting fossil fuel
mining and approving mining companies plans to protect the
environment turned it into the ¡°¡±."
|
Move to green energy was slowed down by government to protect coal mining
|
Fissie
reaktore soos Koeberg se beton-omhulsel is ontwerp om die impak
van 'n Jumbo Jet
(soos in 9/11) te weerstaan.? Reeds die kleinste Tokamak
reaktor se wande is dubbeld
so dik.
On 2024/12/28 01:04, bernhard wrote:
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"Your
machine has to survive
the pummeling.
But it
also has to put the energy to work, producing electricity,
keeping the reaction going, all without disturbing your plasma,
which is as precarious as a toy top spinning on a
fingertip".
Van
CFS se SPARC (Smallest Possible ARC) word gese^: "Here,
in a room as airy and grand as a temple, a colossal machine
will soon be placed at the altar. In a circle around its
core will sit 18
giant magnets, each powerful enough to hoist an aircraft
carrier."?
Daardie kleinste reaktor het betonwande
8 voet dik
-- dubbeld so dik as Koeberg en soorgelyke fissie reaktore.?
Voorsorg teen disintegrasie a g v plasma-magneetveld
onstabiliteite.
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"Your
machine has to survive
the pummeling.
But it
also has to put the energy to work, producing electricity,
keeping the reaction going, all without disturbing your plasma,
which is as precarious as a toy top spinning on a fingertip".
Van
CFS se SPARC (Smallest Possible ARC) word gese^: "Here,
in a room as airy and grand as a temple, a colossal machine
will soon be placed at the altar. In a circle around its core
will sit 18
giant magnets, each powerful enough to hoist an aircraft
carrier."?
Daardie kleinste reaktor het betonwande
8 voet dik
-- dubbeld so dik as Koeberg en soorgelyke fissie reakktore.?
Voorsorg teen disintegrasie a g v plasma-magneetveld
onstabiliteite.
|
Fusie Wensdenkery Stellarator vs Tokamak
Die Stellarator
konfigurasie dateer reeds uit die 1950s of vroeer. ? Dis selfs
ouer as die Tokamak, wat (anders as die Stellarator) nie in
beskryf word nie.? Dit vereis baie spesifieke
vorms van die "coils". wat eers relatief onlangs met beter
rekenaartegnologie akkuraat ontwerp kon word. Daarom het dit
vroeer min aandag gekry.? Vandag fokus fusie navorsing in
Duitsland en in China op Stellarators eerder as Tokamaks.?
Die Wendelstein
is 'n moderne Stellarator, waarin die plasma veel langer
ge"confine" kan word as in 'n Tokamak.? Volgens .sciencedirect.com/science/article/pii/S2666675823001650 "the??has
many advantages. (1) The stellarator avoids??instabilities
and major??disruptions with
large??forces
in the structure of the device and??beams
of runaway electrons caused by the large? (mega-amperes)
of the tokamak".
Verder
"Enormous
external power is needed in tokamaks to maintain not
only the plasma current but also the profiles of pressure
and current for achieving a high bootstrap current fraction
and steady-state operation. In contrast, the stellarator??that
confines plasma and the rotational transform of the field
lines are mainly generated by external 3D coils, eliminating
the need for large toroidal current flowing in the plasma
and thus the need for external current drivers, which
greatly lowers recirculating power and cost".
On 2024/12/27 10:30, bernhard wrote:
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Verreweg
die mees koste-effektiewe maniere om fusie-energie na
elektrisiteit om te sit is via fotovoltaiese, wind- en
hidrokrag.? Met battery en gepompte hidro as stoor bygevoeg
waar nodig (buigsame hidro is meer energie-doeltreffend
as gepompte).? Die $2 miljard totaal wat CFS ingesamel het, is
waarskynlik minder as wat die Oekraiense, Gaza, Hezbollah,
Siriese, Houthi en ander oorloe per dag kos.? Dis nou
as die skade wat aangerig word by die militere koste getel
word.
Die
aankondiging van die "400 MWe fusie kragstasie" is maar net
nog 'n manier om hul stokperdjie te finansier!? Daar sal NIKS
wat ekonomies krag kan lewer van kom nie!? Nie in hierdie eeu
nie.? Ook nie in hierdie millenium nie.? Die wat dit
"betwyfel", het nie die fisika van hitte-oordrag,
plasma-stabiliteit en stralingskade ... behoorlik en eerlik
toegepas nie.? Tokamaks anders as sommige meer gekompliseerde
konfigurasies (bv Wendelstein) se plasmas is inherent
onstabiel en kan katastrofies "ontplof".? 'n
Magnetiese energie ontploffing van die soort wat keer dat die
nog veel duurder ITER masjien voltooi word!? Wee diegene wat
naby is wanneer dit gebeur!
On 2024/12/27 09:34, Wolhuter, Riaan,
Dr [ wolhuter@...]
via groups.io wrote:
Ek
is net verbaas dat daar soveel geld ingestort word.
?
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CAUTION:
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Dit
begin met "IF all goes to plan ...".? 'n Baie groot IF.?
AS die voorspellings van die fusie protagoniste
gerealiseer het, was die reuse ITER reeds sowat 'n
dekade gelede operasioneel, en teen 'n klein breukdeel
van sy koste tot dusver.? Maar nou word voorspel
dat dit in die 1930s sal begin werk as prototipe om te
wys dat fusie-krag dalk moontlik sal wees.
?
gee
meer besonderhede oor die beplande aanleg in Virginia.?
Dit se^ onder andere:
"
.. let¡¯s hold our nuclear horses for just a moment:
there are several steps that must be completed before
this fusion plant, named ARC (for ¡°affordable, robust,
compact¡±), could be plugged into Virginia¡¯s power grid.
For one, CFS has not finished its demonstration machine,
SPARC (¡°smallest possible ARC¡±). The company says it
expects the completed SPARC to show net energy
production in 2027. That alone would be a feat."
Voordat
daardie maatskappy (CFS) se SPARC werk, is dit blote
wensdenkery van hulle om so groot van hierdie beoogde
ARC te praat.? Soos male sonder tal met fusie in die
afgelope driekwart-eeu, sal daar niks meer as
grootpratery van kom nie.???
Ek
sien nerens dat hulle die wesentlike probleme van enorme
stralingskade a g v die ultrasnel (14.3 MeV) neutrone
bespreek nie.? Teen 400 MW kraglewering gaan daardie
supersnel neutrone hulle superduur kriogene
supergeleiers taamlik gou vernietig.??
Ek
sien ook nie hoe hulle genoeg tritium brandstof
(wat nie in naastenby genoegsame hoeveelhede in die
natuur voorkom nie, en wat tot nou toe uit Kanada se
CANDU reaktore verkry is) gaan kry nie.? Kanada het
intussen meeste van sy CANDU reaktore gesluit, en beplan
om ook die origes binnekort te sluit.? Tritium het 'n
halfleeftyd van sowat 12 jaar.?? M a w die bestaande
beskeie voorraad daarvan word elke 12 jaar met die
helfte verminder.? So wanneer hierdie beloofde reaktor
oor 12 of meer jare gereed sal wees sal daar maar min brandstof
beskikbaar wees.
?
On 2024/12/27 01:56, Van Niekerk,
Wikus, Prof [wikus@...]
via groups.io wrote:
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