Geoscience Reference
In-Depth Information
Fig. 3 Layout of the
designed system of cooling
water
The operation of this system was investigated on the hydrothermal model, where
cooling water discharge and withdrawal was simulated. In the laboratory condi-
tions, it was not possible to simulate heat losses from water surface and this was
accomplished by means of calculations (Majewski and Widomski
1977
). Heat
exchange between water surface and atmosphere was determined for various
water temperatures and meteorological conditions. These calculations proved that
the designed cooling water system is working correctly from technical point of view
and also that permissible lake surface temperatures were not exceeded.
6 Changes of the Lake to Secure the Operation
Requirements of Both Power Plants
Future exploitation of the lake required introduction of several changes in the lake
layout. Daily changes of lake water level due to the operation of pumped-storage
power plant were estimated at 1.0 m. It was also expected that increase of maximum
