Geoscience Reference
In-Depth Information
H
(m)
2.7
270 m max. designed water elevation
max. water surface elevation including water
volume in the upper reservoir
max. daily water surface elevation
2
1
0.7
0.70 m min. designed water elevation
Q
(m/s)
min. water surface elevation taking
into account total volume of the upper
reservoir
min. daily water surface elevation
2
water surface elevations in Lake Zarnowiec
hydrological conditions 1966
nuclear power plant 4 x 465 MWe
outflow from the lake
1
min. biological discharge 0.40 m
3
/s
0
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
Fig. 4 Results of the calculations of lake water balance
its operation, which may bring considerable hazard. Special study was carried out
on the hydraulic model. The breach of the embankment in several places was
investigated. Measurements were carried out on the hydraulic model in the scale
1:250 without vertical scale distortion (Hydroproject Włocławek Section
1978
).
Various effects were investigated. The main result was the change of the previous
layout of cooling water system. Water intake was moved in the north direction and
designed as bottom intake. Discharge of cooling water was located near the area of
nuclear power plant. This new layout is shown in Fig.
5
11 State of the Lake After 10 Years Operation
of Pumped-Storage Power Plant
After 10 years of the operation of pumped-storage power plant, comprehensive
studies of the lake were carried out (Majewski
1996
,
2004
).
12 Conclusions
The idea of constructing two power plants, which will utilize Lake
˙
arnowiec as the
lower reservoir for pumped-storage power plant and as cooling water reservoir for
nuclear power plant, required numerous data for the design and future operation of
both power plants. The source of information included:
l
Information from previous measurements and records.
l
Stationary measurements carried out as standard data.
