410
L. Paj˛ ak et al.
flow of 7 m
3 /s from 28.6 to 24 °C (see Fig. 20.3). The investment outlay required
for a fan cooler is estimated at approx. EUR 57/kW c = PLN 241/kW c . In the light
of the above data, the total capital expenditure for the implementation of the cooling
system described above may be estimated at approximately PLN 28 million/EUR
6.4 million. It is assumed that the cooler will operate for 15 years and the costs of its
integration with the power plant will amount to 30% of the investment outlay related
to the construction of the cooler itself (i.e. PLN 8.4 million/EUR 1.9 million).
The total capital expenditure related to the implementation of the project under
Option 1 can be estimated at approximately PLN 40.8 million/EUR 9.3 million
(PLN 28 million/EUR 6.4 million for the cooling system + PLN 8.4 million/EUR
1.9 million for integrating the cooler into the system + PLN 4.4 million/EUR
1 million for the pipeline connecting the condenser collecting pipe to the Ł˛ aczanySkawina Canal). The annual cost incurred under this option can be estimated at PLN
3.7 million/EUR 0.84 million (depreciation of fixed assets, operation, repairs and
maintenance, additional fuel purchase cost). Given the gross amount of electricity
produced (1375 GWh/year as stated in Fig. 20.3), the operation of the system would
increase the price of electricity generation by PLN 3.93/MWh (EUR 0.89/MWh).
M
~G
working power 220 MWel.
Efficiency of thermal energy conversion into electricity*:
- winter half-year 41,18%,
- summer half-year 35,01%,
- annual average 38,09%.
Gross electricity production*:
- 753 GWh/winter half-year (average power 172 MWel),
- 622 GWh/summer half-year (average power 142 MWel),
- 1375 GWh/year (average power 157 MWel).
Power of condensers
(cooling)
@ :
- winter half-year 178 MW,
- summer half-year 179 MW,
- annual average 179 MW.
Power of boilers delivered in
fuel
@ :
- winter half-year 418 MW,
- summer half-year 511 MW
- annual average 412 MW
Stream and average annual temperature of
cooling water, before the power plant*:
- winter half-year 8,0 m
3
/s; 6,5°C,
- summer half-year 6,9 m
3 /s; 17,1°C,
- annual average 7,4 m
3
/s; 11,8°C.
Stream and average annual
temperature od cooling water, behind
the power plant*:
- winter half-year 8,0 m
3
/s; 11,8°C,
- summer half-year 6,9 m
3
/s; 23,3°C,
- annual average 7,4 m
3
/s; 17,6°C.
technological steam*: 535°C; 9,0 MPa
Energetic canal
1
2
3
4
Data sources:
* - from power plant's monitoring database,
@ - values determined by calculation on the basis of archived data from power plan
Project parameters of cold stores:
increasing water temperature
from 28,6°C to 24°C, with flow
7 m
3
/s (summer average).
Cooling power 116 MW.
Fig. 20.3 Technological diagram of the power plant after modifications consisting in the installation
of an open fan cooler which cools water after the condenser before it is discharged into the power
plant canal
L. Paj˛ ak et al.
flow of 7 m
3 /s from 28.6 to 24 °C (see Fig. 20.3). The investment outlay required
for a fan cooler is estimated at approx. EUR 57/kW c = PLN 241/kW c . In the light
of the above data, the total capital expenditure for the implementation of the cooling
system described above may be estimated at approximately PLN 28 million/EUR
6.4 million. It is assumed that the cooler will operate for 15 years and the costs of its
integration with the power plant will amount to 30% of the investment outlay related
to the construction of the cooler itself (i.e. PLN 8.4 million/EUR 1.9 million).
The total capital expenditure related to the implementation of the project under
Option 1 can be estimated at approximately PLN 40.8 million/EUR 9.3 million
(PLN 28 million/EUR 6.4 million for the cooling system + PLN 8.4 million/EUR
1.9 million for integrating the cooler into the system + PLN 4.4 million/EUR
1 million for the pipeline connecting the condenser collecting pipe to the Ł˛ aczanySkawina Canal). The annual cost incurred under this option can be estimated at PLN
3.7 million/EUR 0.84 million (depreciation of fixed assets, operation, repairs and
maintenance, additional fuel purchase cost). Given the gross amount of electricity
produced (1375 GWh/year as stated in Fig. 20.3), the operation of the system would
increase the price of electricity generation by PLN 3.93/MWh (EUR 0.89/MWh).
M
~G
working power 220 MWel.
Efficiency of thermal energy conversion into electricity*:
- winter half-year 41,18%,
- summer half-year 35,01%,
- annual average 38,09%.
Gross electricity production*:
- 753 GWh/winter half-year (average power 172 MWel),
- 622 GWh/summer half-year (average power 142 MWel),
- 1375 GWh/year (average power 157 MWel).
Power of condensers
(cooling)
@ :
- winter half-year 178 MW,
- summer half-year 179 MW,
- annual average 179 MW.
Power of boilers delivered in
fuel
@ :
- winter half-year 418 MW,
- summer half-year 511 MW
- annual average 412 MW
Stream and average annual temperature of
cooling water, before the power plant*:
- winter half-year 8,0 m
3
/s; 6,5°C,
- summer half-year 6,9 m
3 /s; 17,1°C,
- annual average 7,4 m
3
/s; 11,8°C.
Stream and average annual
temperature od cooling water, behind
the power plant*:
- winter half-year 8,0 m
3
/s; 11,8°C,
- summer half-year 6,9 m
3
/s; 23,3°C,
- annual average 7,4 m
3
/s; 17,6°C.
technological steam*: 535°C; 9,0 MPa
Energetic canal
1
2
3
4
Data sources:
* - from power plant's monitoring database,
@ - values determined by calculation on the basis of archived data from power plan
Project parameters of cold stores:
increasing water temperature
from 28,6°C to 24°C, with flow
7 m
3
/s (summer average).
Cooling power 116 MW.
Fig. 20.3 Technological diagram of the power plant after modifications consisting in the installation
of an open fan cooler which cools water after the condenser before it is discharged into the power
plant canal