THE FUEL PROBLEM IN SLOVENIA

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700030224-8
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: October 6, 2011
• Sequence Number: 224
• Publication Date: December 1, 1951
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/10/17: CIA-RDP80-00809A000700030224-8
CLASSIFICATION RESTRICTET~~^~~
CENTRAL INTELLIGENCErAGENCY 1l Y1 REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
SUBJECT
HOW
PUBLISHED
WHERE
PUBLISHED
DATE
PUBLISHED
LANGUAGE
Economic - Fuel
Monthly periodical
Ljubljana
Aug - Sep 1.`
DATE OF
INFORMATION 1950
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or TI1l oo1Tro rtmr ndn rot ^w111O or 101100*0a *cr oO
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Or 1? 00I17107* 1/ A11T 101111 ro Ol O4IRNOOITto POISON U rro-
^U110O O1 LOW. orrooollrnml Or VIII roll It MOOIOITro.
THIS IS UNEVALUATED INFORMATION
Industrijski Vestnik, Vol V, No 8-9, 1950.
M--L- EL PROBLE14 IN SLOVENIA
Stane Jesih
Slovenia has black and brown cal and lignite ulnes. The table below lists
the mines and the type of cr,al 1111_, lignite.
Av Low,,st
Caloric
Value
(cal per kF)
Percent of
Total
Deposits
by Mine
Timav
Black
7,000
0.06
Trbovlje-Hrastnik
Brown
3C0
9.12
Zagorje
1.300
5
38
Senovo
200
.
0.80
Zabukovca
4,500
0
17
Lasko
4,60o
.
0.31
Liboje
1+.000
0
07
Pecovnik
4,700
.
C.05
Sentjanz
3,500
o.63
Kanizarica
3,500
0.39
Kocevje
3,700
0.39
Velenje
Lignite
2,600
79.00
Ilirska Bistrica
11
1,700
0.55
Slovenian coal is
prom 620, 00,0 to
55 million years
old. Black coal
is the oldest
and lignite the
youngest
All known deposits of black and brown coal and lignite are included above,
including deposits not yet exploited.
Considering that Slovenian -oal deposits are not inexhaustible and that
coal has become a raw material, Slovenia, must aim to utilize the entire potential
heating capacity of the coal. If Slovenia continues to exploit coal at the same
rate as it is doing today, the black and brown coal deposits will last for only
two generations, whereas the lignite deposits will last some tens of generations.
STATE `~U1W
ARMY
16N-s-
3cl-B-1
RESTh C
Sanitized Copy Approved for Release 2011/10/17: CIA-RDP80-00809A000700030224-8
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RESTRICTED
ESTRIC i EJ
In 1938, Yugoslavia produced approximately 6 x 106 tons of coal, or 0.4 per-
?
rent of the coal produced in the xorld. It was.aatimated in 1939 that deposits
in Yugoslavia amounted to i8 x 10 tons or 1 1,400 of world deposits. Large depos-
its of lignite and brown cop' have been discovered since the liberation. With
the acquisition of the liberated districts, Yugoslavia acq?"ired the Rasa and
Ilirska Bistrica mires. The'coal deposits in Slovenia are 1/18 of the estimated
deposits in Yugoslavia.
The population. of Yugoslavia is 1/137 or 0.75 percent of the total world
,opulation (2.4 billion). World deposits amount to 2,900 tons of coal per capita;
deposits in Yugoslavia amount to ouly 300 tons per capita. This figure is much
lower for Slovenia. If lignite is ir:luded, however, the figure is 900 tons per
capita.
Much'of the heat potential of coal used in furnaces, stoves, and ranges is
wasted. Locomotives utilize only 7 percent of the total caloric potential of
coal; steam boilers, 65 percent; gas generators, 85 percent; and ranges and
stoves, 12 percent. These losses cannot be remedied very much, as steam boilers,
locomotives, ranges, and stoves would have to be redesigned to raise their effi-
ciency factor.
Coal deposits are dwindling daily., Coal has become a raw material whose
importance as a fuel is diminishing. Therefore, serious thought must be given
to i ?ise. It is high tics ti-a- Yugoslavia used coal as fuel only when it is
impossible to use other f.:el, Poorer grades of coal should be used for fuel,
and new heating installations snou:d to con, tructed to use poorer grades.
Much of the caloric ?._lutt of coal burned in furnaces and other heating
installations is lost on the surface of the boilers or steam pipes. Consequently,
all such surfaces not serving for heating should 7e can=fully insulated. Exper-
ience has shown that 1,200 :.glories/per kilogram per hour are lost on one square
meter of uninsulated surface where the temperature is 100 degrees centigrade
higher than the surrounding air, This loss increases as the temperature increases.
If the steam conductor is Nell in_ulated. the loss de-rear- to 350 calories per
kilogram per heir per square meter, by uscog insulating flanges and valves the
loss is further reduced to 220 calories per kilogram per hour per square motor.
Up to now Yugoslavia has planned the use of coal in accordance with so-
called..production and steam norms. Since every planner wants to be dependable
and fears inferior quality and irregular delivery, he requisitions larger quanti-
ties of coal from year to year even though production remains stationary. As a
result, mines produce coal in excess of current needs. It is stored in unsuit-
able warehouses, or even in the open, where it deteriorates in caloric value and
often even in appearance.
A second result is that too much coal is fed into the grate so that it falls
through unburned into the slag, Planning should take into account the maximum
capacity of the grate of each boiler, taking into account both the surface area
of the ;rate an, the heating surface .? the boiler. The equation B:k2H should
serve to determine the amount of coal to be used. B is the. amount of coal in
kilograms with regard to caloric value and quality which is stipulated for a
particular grate; k2 is the amount of coal in kilograms which burns in one hour
on one square meter, approximately 8.1 to 11 kilograms (an average of 9.5); and
H is the heating surface of the boiler in square meters.
FEST9IS r'^
Sanitized Copy Approved for Release 2011/10/17: CIA-RDP80-00809A000700030224-8