However there are a lot of grades of 'bunker fuel' or whatever it is.
From something resembling central heating oil or kerosene, down to
'nearly but not quite tar'.
Some of these are 'marine diesel fuel'
So lines it seems are blurred.
In terms of generation, the oil burning steam plant is all gone now.
What the new STOR diesels burn I do not know. I would assume that it's
not heavy oil, but stock red diesel.
“Some people like to travel by train because it combines the slowness of
a car with the cramped public exposure of an airplane.”
On Tuesday, 8 November 2016 22:49:55 UTC, Dave Liquorice wrote:
The correct term is "Residual fuel oil".
It's all the shit left over after refining to get the lighter fractions out of the crude oil.
Full of all sorts of nasty pollutants ranging from sulphur to heavy metals.
All of which gets into the atmosphere when it's burned.
Oil on the generation totals is oil and nothing but heavy fuel oil.
Diesels will not show because they are all connected beyond the bulk supply
point on the grid system, all you will see is suppressed demand
Quite a few of the lower output (up to 35MW) OCGT's mainly based at large coal &
nuclear sites exclusively use oil distallate and not gas but will always show on
the OCGT totals.
On Tue, 08 Nov 2016 16:30:24 +0000 (GMT), "Dave Liquorice"
We looked at some low pressure gas turbines with heat regeneration
which achieved about 16% conversion to motive power, the aero derived
ones which ran higher pressures were rated at ~33% and at the time
big diesel could do 40%, what are the comparable figures now?
IIRC a traditional steam turbine was turning a similar 33% into
A colleague went on to work on solid oxide fuel cells in co cycle with
a gas turbine and it was expected to achieve 70% conversion heat to
electrical power but has remained vapourware for more than a decade
Oh, if you ant a good larf. just read the Grauniad!
A thinly disguised puff piece for a crappy Danepak company that has
pushed itself up a blind alley.
All political activity makes complete sense once the proposition that
all government is basically a self-legalising protection racket, is
On Tue, 8 Nov 2016 21:29:49 +0000, The Natural Philosopher
It amuses me the way Poulsen (Dong's CEO) expects to produce 5GW. I
bet that doesn't take into account the capacity factor, but is just
peak output. Also, the way he thinks that batteries are going to be
able to store masses of surplus wind energy in the not-too-distant
future, when the link-out to battery storage technology is decidedly
down-beat and pessimistic.
From that link: 'The biggest problem is energy density' and
'researchers have struggled to increase energy density and meet strict
safety requirements', 'The more energy you put into a box, the more
dangerous it will be', ' thermal management is crucial. If a battery
heats up beyond 80C, the components start to decompose. Thats when it
can explode'. And all that negativity from the Grauniad, so in reality
things can't be looking good (but we knew that anyway).
I've not poked my nose outside today yet, ISTR they were forecasting
wind this week, this week it hasn't arrived and they're now forecasting
it for next week instead.
This afternoon, actual demand was ~1GW higher than predicted demand,
overcast so not much solar, hence them having to break out the big
carrots, looks like they'll need more for Thursday ...
On 08/11/2016 16:50, The Natural Philosopher wrote:
That's quite a big gap! I think I will go and check my generator set.
Today's load curve doesn't look all that different to yesterday's - why
are they struggling all of a sudden. Did winter come as a surprise?
On 08/11/2016 17:42, The Natural Philosopher wrote:
And predicted to get colder too.
Now that the peak has passed they had better start pumping the pumped
storage overnight if they expect to survive tomorrow's evening peak.
I presume the lack of spare French base nuclear capacity at the moment
plays a part in this situation. They satisfy their own demand first.
The Republic of Ireland has some Peat fueled power stations with
mechanical stripping of peat bogs on a large scale and around 500
hundred miles of a dedicated narrow gauge railway system to transport
it to the plants. Hardly any power is exported to the UK mainland
though with the flow over the connector being almost always being the
other way. But if we can't let them have any I suppose they will have
to run them harder. They were due to close around 2019 but the
operators now wish to keep them going for longer and various other
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