Jökull - 01.12.1961, Blaðsíða 52

by the Reykjavík Municipal District Heating
Service. In case of no extensions o£ the system
the expected total for 1970 will be 70,000 people
in houses heated by commercial fuel.
There appears to be little doubt that con-
siderable natural heat resources are at hand in
the vicinity of the Reykjavik area. Firstly, a
potential thermal area was recently discovered
within the city. Secondly, the thermal areas of
Krýsuvik and the Hengill, located respectively
30 km south and 45 east of the city, are very
The figures in TAliLE I indicate that the
natural lieat resources are a relatively import-
ant source of heat in Iceland.
3. PRODUCTION COST AND FIELD
OPERA TION.
(a) Production cost.
Drilling íor natural heat has been carried out
on a relatively large scale in three major therm-
al areas in Iceland, that is, in Reykjavík, at
TABLE I.
Annual saving of fuel oil by natural heat installation in Iceland.
(1) Domestic heating...........................
(2) Green-houses and swimming-pools ...........
(3) Power production ..........................
(4) Industrial heating ........................
Sunr.......................................
Per capita kg/year ........................
large sources (see FIGURE I). There is practic-
ally no doubt that these areas can provide
natural heat for domestic and industrial heating
in the Reykjavik area for tens of years to come.
A major plan for the extension of the present
system, to serve practically all inhabitants of
the Reykjavik area, is now under discussion and
is expected to be realized, at least partially,
within the coming ten years. As will be disc.uss-
ed below, this plan includes a special system for
the distribution of low-pressure stearn to small
industries in the area.
A natural steam power plant is expected to
be built in the Hengill area in 1964. The initial
capacity of the plant will be 15,000 kw and
by 1970 a capacity ol' 30,000 kw is expected.
Based on the realization of the above plans,
the total amount of fuel oil saved annually in
1970 by the natural heat installations is ex-
pected to be as shown in the second column in
TABLE I. The figure given for domestic heat-
ing is based on the assumption that by 1970 a
total of 100,000 people will be served. The
latter figure is again based on the assumption
that a total of 90,000 people will be served in
the Reykjavik area, or about 80% of the total
number of expected inhabitants in this area.
Type of oil. Metric tons per year.
1960 1970
Gas oil (80%) 45,000 90,000
Fuel oil 15,000 20,000
Fuel oil 30,000
Fuel oil 20,000
60,000 160,000
350 800
Reykir 16 km north-east of Reykjavik and in the
southern part of the Hengill area 45 km east
of Reykjavik. The location of these areas is
shown in FIGURE I.
The main clata on the results obtained in
these areas are given in TABLE II. As a matter
of main importance the table includes data on
the production cost per unit heat, based on
present drilling and building prices.
The natural lieat output referred to in item
(3) in TABLE II includes all the heat that escap-
es at the surface, that is, the output of natural
springs plus the heat escaping fronr hot ground.
The figures in item (3) and the total heat out-
put of boreholes referred to in item (8) are conr-
puted as sensible heat above 4° C, which is the
annual mean for southern Iceland.
On the other hand, the effective heat output
of boreholes given in item (9) is computed as
sensible heat above 40° C. This lower limit is
selected with regarcl to the utilization of the
water for space heating.
It is to be emphasizecl, however, that clistri-
bution losses are not taken into account. The
quantity of heat delivered to the consumers will
therefore be below the figures given in item
(9). The figures are given mainly for the purpose
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