History development of the
renewable energy sources in
BULGARIA
Presentation
made by
Viktoriya Slaveva
Bulgaria
In the past, people
used wind, water
and sun energy,
but they were not
aware that there is
a notion like
“renewable energy
sources”.
Without scientific explanation people
were:
• Built houses of south - west, to "catch"
sunlight in the bigger part of the day
• Built windmills
• Built watermills
Water and wind energy is
transformed into
mechanical. For example
for grinding flour.
Propellers of the windmills
are set in motion by wind,
they are driven two large
stones, and rubbing to each
other they are grinding
the grain between them in
flour.
The structure of the watermills is like windmills’ structure.
But watermills are driven by water energy . They are built
on the river flow.
In Bulgaria, one of the
largest complexes where
multiple facilities were
built in the past , is
Etara. Architectural
ethnographic complex
"Etar" is the first one
of this type in Bulgaria.
It was found on the 7 of September 1964. The museum
is situated 8 km South of Gabrovo.
In AEC "Etar" is the only one and unique collection of
the old-times water-driven machinery in Bulgaria .
Nap-raising mills
In the nap-raising equipments are
washed woolen materials -blankets,
rugs, tufted rugs, fleecy rugs.
During the process the textile become
soft and mossy surfase.The duration to
the process depends of the materials
and temperature form 5 to 10 hours
without using of soap powder. From the
30th years of the 19 century the napraising equipments started to wash
carpets and coverings.
The washing is 20-30
minutes.
In Etara are exhibited
two nap-raising
equipments. One of
them was an
established state on
the place, and shows
the technical method
of build in Gabrovo,
the second one is from
village Stokite Sevlievo.
Water-mill "Karadzheika"
It is an original device that is about 200
years old. The name of the mill is
associated with the dark colour of the
flour coming out. It comes from the
Turkish word "kara" which means
black.
Water-mill "Dolapkinya"
Its name comes after the name of the water wheel,
called "Dolap", which puts it in motion. The
construction of the mill equipment is the same as
that of "Karadjeika" water mill.
Fulling mill
The fulling mill was built in the middle of the
19th century. It is primitive equipment for
mechanical processing of woolen home woven
textile. After fulling the textile become thicker.
Mechanical grind stone
The rapid development of cutlery calls for
grindstones. Grindstones of this type are
used for grinding axes, knives, claw
hammers, etc.
• wind mills have been replaced by wind
generators
• water mills by Water Electricity
• to “catch" the sunlight are used solar panels
In Sandanski, the Solar Energy Park
is already functioning
• January 7th 2009 was the day when
photovoltaic energy was introduced into the
network.
• Analysis indicates that the Park produces over
300 750 Megawatt-hours a year.
Renewable energy sources are used
for years, we use them now and
they will be used in the future!
Our aim is to save them for
the future
generations!
Sources:
www.en.wikipedia.org
www.etar.org
www.snimka.bg
THANK YOU FOR
ATTENTION!