C
Commander Kinsey
Guest
On Thu, 30 Mar 2023 17:17:34 +0100, Ed Pawlowski <esp@snet.xxx> wrote:
Couldn\'t they have made cars which automated this process?
On 3/30/2023 11:43 AM, John Larkin wrote:
On Thu, 30 Mar 2023 15:04:38 +0100, \"Commander Kinsey\"
CK1@nospam.com> wrote:
On Mon, 20 Mar 2023 18:09:55 -0000, The Natural Philosopher <tnp@invalid.invalid> wrote:
On 18/03/2023 16:38, John Larkin wrote:
On Sat, 18 Mar 2023 11:29:24 +0000, SteveW <steve@walker-family.me..uk
wrote:
On 18/03/2023 11:17, Sylvia Else wrote:
On 18-Mar-23 8:39 pm, Commander Kinsey wrote:
An electrician (who I don\'t believe) told me if there\'s too much power
on the grid, they use wind turbines as fans to absorb extra power. Is
this really true? Aren\'t there plenty of power stations they can just
turn down a bit? Take your foot off the gas so to speak?
I was also disturbed to hear from him it costs £700 to install smart
meters into each home. And in the UK that comes from green tax..
Shouldn\'t that tax be being spent on making more green energy,
building new wind farms?
Coal fired power stations cannot change their output rapidly, and can be
willing to pay for the right to generate in preference to reducing output.
So the windfarm notion is not entirely implausible. However, wind
turbines use electronics to match the turbine output to the grid
frequency, and it seems unlikely that it\'s designed to operate in
reverse for the relatively rare occasions that that would be used.
On balance, then, I doubt that using wind turbines as fans is real.
That idea has probably come from the use of \"barring gear\". When not in
use, some wind turbines are electrically driven and turn slowly, to
prevent semi-permanent sagging of blades or shafts when left stationary
in one position.
Steam turbines on ships (now mostly diesels) engaged a \"turning gear\"
electric motor to slowly rotate things so a hot turbine shaft wouldn\'t
sag.
Steam ships used cheap fuel, basically street paving quality gunk, but
were so complex that it was hard to find crews to keep them running.
Diesels are much simpler.
And those also use street paving quality gunk, preheated to make it liquid.
Funny, I have some diesel in a gerry can here, it isn\'t gunk at room temperature.
Bunker C didn\'t flow at room temp.
Where I worked back in the 70s we used it for the steam boiler. Monday
morning the boiler was started on #2 oil and then a steam probe heated
the #6 to about 200 degree so it would flow.
The oil was delivered in insulated tankers and if not unloaded within
time it would gel and have to be heated.
The benefit to #6 was the price.
Couldn\'t they have made cars which automated this process?