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The Coal Research Establishment lies at the
heart of the sleepy Gloucestershire village of Stoke Orchard. Surrounded
by pretty country cottages the brutal industrial architecture of
the research sheds and towering chimneys could seem very out of
place
in its rural setting, but set back from the main street behind
some landscaped gardens and non descript office block the remains
of
the Coal Research establishment are relatively unnoticed. The establishment
was set up in 1950 by British Coal's director of research Jacob
Bronowski to investigate alternative technologies to improve the
value of the energy produced from burning coal along with completely
new methods of using the coal won from the countries coalfields.
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One of the CRE's most notable breakthroughs
was a coal Liquefaction process which produced a
synthetic oil which could be used to power motor engines. During the
1970's the
CRE was home to a Ford Torino fitted with a experimental
engine capable of using this oil as a demonstration vehicle. However
despite
rising oil prices's during the 1970's. Coal liquefaction
was expensive process which proved to be uneconomic, it never progressed
beyond the research stage and no trace of the mythical
coal powered
car could be found during the visit. The coal liquefaction
facilities are still present at the CRE today, perhaps to the very
end of
its research days the scientists at the CRE hoped their
liquefaction process may become an economic prospect as oil reserves
ran low.
In fact today a number of international research organisations
are pursuing new research projects into Coal Liquefaction.
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One of the process required to convert solid coal
into a liquid fuel is conversion into a gas through a chemical
process called gasification. Once the coal has been converted into
a gaseous state it can be further processed into liquids but the
gas itself can also have its own uses. burning this gas can be
more efficient than burning the solid coal releasing more of the
energy
contained within the coal, Gasified coal is commonly used in power
generation. The CRE was a pioneer in coal gasification initial
studies were successfully concluded in the 1950's using coal seams
at Newman
Spinney, but the the project was abandoned by the NCB for economic
reasons. Improved gas control systems and processes developed
for the North sea oil
and gas fields lead to a further round of research which proved
the thin deep coal seams found in Britain could be economically
exploited for coal gasification. Gasified coal is also the key
to clean coal technologies where the carbon emissions generated
as
coal burns could be neutralised or trapped. One of the CRE's major
projects in its later years was the pursuit of clean coal which
would trap the carbon in a usable form that could be exploited
in other chemical processes ore as a fuel itself.
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When the government decided to privatise the
coal producing divisions of British Coal in 1994 the CRE was left
in a difficult position the newly privatised and in many cases
cashed strapped operators, were unable to fund the CRE's research
work
and the government was unwilling
to
spend
public money on supporting the coal industry so less than a year
later the research operations at Stoke Orchard ceased.
I first read about the CRE in a book about the 1984/85
miners strike and finding a planning application which showed the
site still existed I knew I would have to go and visit. The site
today
is still remarkably complete the front part of the site is used
today as a trading estate with the former office building in use
by new occupants but at the back of the site the research buildings
have been left untouched some parts are just as they would have
been left thirteen years ago. I met up with Immortal Owl who secretly
was hoping to find the Ford Torino unfortunately he would be disappointed.
It didn't take long to find a way onto the site, as it was Sunday
the trading estate was deserted and we were left to our devices
looking round.
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Despite the CRE's interest in large high profile
projects like coal gasification and Liquefaction much of its day
to day work was far humbler, our first stop after crossing the
large overgrown car park was a set of semi detached houses at the
back of the site. Built to
test
prototype domestic
coal fired boilers and fires, the houses
themselves looked just like normal set of 70's Semi's until you
realise they have far
more chimneys
than is really needed. Each room was equipped with a fireplace
and flu even the garages sadly neither of which hid a coal powered
car.
The site is split into by a small stream so we left
the experimental houses behind us and made our way over a metal
bridge towards the large scale test buildings. Initially we were
quite disappointed all the buildings were locked tight and it took
quite some time to find an open door which didn't lead to empty
storerooms. The first bit of proper coal technology we came across
was an experimental Hartley and Sugden sectional boiler, the boiler
its self was a standard small scale boiler but it had been linked
up with a range of heat exchangers and gas filters to remove sulphur
and nitrous oxide from the exhaust gasses allowing poor grade coals
to be burned efficiently smokelessly.
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From boiler test rooms we headed off past the liquefaction
facilities which proved to be inaccessible and then on to the Power
Generation branch. Inside this separate test facility was a small
power station test rig for burning gasified coal. Reports we found
inside showed that the rig was used for testing experimental
blends of coal produced buy combining the coal from different
colliery's to see what effect they would have in power station
boilers.
These reports also highlighted another of the CRE's
roles, trouble shooting for British coal. It seams the coals produced
at Mayport in Cumbria were causing magor slagging problems in
the boilers at Fiddlers ferry power station which was causing so
many
problems for the national grid that future supplies from Mayport
were being refused. As series of confidential reports outlined
the CRE's work in determining why this problem was occurring and
discovering
which colliery's coal could be blended with the mayport coal to
make it burn acceptably.
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After leaving the power generation branch we headed
up on to the roof the boiler test house using one of the few ladders
which was still intact to ground level. from here we found our
selves at the base of the three tall chimneys which dominate the
site and were rewarded with fantastic views over the entire site.
Our final stop before leaving was a pair of modest nissen huts
at the back of the site labeled as workshops they didn't seem to
be particularly impressive but contained one of the highlights
for me. At the back hidden amongst the shadows were a series of
storage racks labeled with the name of the colliery's that remained
open at the time of privatisation including a few which disappeared
shortly after. Names like Ellington, Markham Main, Ollarton, Deep
Navigation, Seaham and perhaps most poignant for me Annesley-Bentinck
whose derelict remains I had visited a few months before.
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