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APCS of CCGT-410 MW of Krasnodar CHPP
“Modular Tornado Systems” company has successfully implemented the APCS of 410 MW power-generating unit of Krasnodar CHPP. The automation object is CCGT-410, which is composed of the following components:
- The “Mitsubishi Heavy Industries” (M701F4) gas-turbine unit with 303,94 MW nominal rating power (when using natural gas with the combustion heat of 48175 kJ/kg) with a hydrogen-cooling generator.
- The waste heat boiler (Ep 307/350/47 13.0 / 3.1 / 0.5 565/560/247) without autonomous firing produced by OJSC “EMAlliance”.
- The steam-turbine plant (T-113 / 145-12,4) supplied by JSC “The Ural Turbine Works”, including the electrical part of control system (EPCS) and system of vibration control and diagnostics.
- The turbine generator (TF-160P-2UZ) of 200 MVA (160 MW) nominal rating power complete with air-cooling supplied by JSC “ELSIB RMA1”.
And additional service equipment, including the auxiliary supporting systems of power-generating unit.
The characteristics of gas turbine powered by the natural gas with composition accepted in the project are given in the Table.
# Number |
Parameter name |
Unit of measure |
Value |
1 |
Electrical power at the generator terminals |
MW |
303.4 |
2 |
Effective electrical efficiency |
% |
39.0 |
3 |
Exhaust gases temperature |
°С |
602 |
4 |
Exhaust gases consumption |
t/h |
2572 |
5 |
Compressor’s pressure ratio |
- |
18 |
6 |
Rotation speed of generator |
rpm |
3000 |
The waste-heat recovery boiler (WHRB) (Ep 307/350/47 13.0/3.1/0.5 565/560/247) and auxiliary equipment supplied by OJSC “EMAlliance” (Russian Federation) together with “AE&E CZ s.r.o.” (Czech Republic).
The main calculation parameters of the WHRB during nominal load of the GTU are given in the Table.
Outside air temperature. °C |
-20 |
-10 |
-1.7 |
+15 |
|
High pressure steam – output* |
|
||||
Steam consumption, kg / f |
83.21 |
86.22 |
87.96 |
85.38 |
|
Pressure of steam at the output of WHRB***. bar |
129.64 |
129.64 |
129.64 |
129.64 |
|
Pressure of steam at the input of steam turbine, bar |
123.47 |
123.47 |
123.47 |
123.47 |
|
Steam temperature. °C |
547.0 |
550.0 |
560.0 |
565.0 |
|
Reheat steam – input |
|
||||
Pressure of steam at the output of steam turbine, bar |
30.41 |
31.35 |
32.71 |
32.18 |
|
Pressure of steam at the input of WHRB***, bar |
29.55 |
30.46 |
32.13 |
31.22 |
|
Temperature**. °C |
361.2 |
364.0 |
373.3 |
378.4 |
|
Consumption in accordance with WHRB calculations, kg / f |
80.58 |
83.58 |
85.32 |
82.746 |
|
Reheat steam – output* |
|
|
|
|
|
Steam consumption, kg / f |
99.94 |
101.95 |
100.58 |
97.40 |
|
Pressure of steam at the output of WHRB***, bar |
28.27 |
29.14 |
30.85 |
29.95 |
|
Pressure of steam at the input of steam turbine, bar |
27.40 |
28.24 |
30.26 |
28.99 |
|
Steam temperature, °C |
540.5 |
544.0 |
554.0 |
560.0 |
|
Low pressure steam – output*** |
|
||||
Steam consumption, kg / f |
13.37 |
13.87 |
13.95 |
12.53 |
|
Pressure of steam**, bar |
5.0 |
5.0 |
5.0 |
5.0 |
|
Steam temperature**, °C |
249.0 |
248.5 |
248.0 |
248.7 |
|
Exhaust gases |
|
||||
Temperature at the input of the chimney, °C |
116.9 |
108.2 |
100.7 |
81.4 |
|
Air pressure*, mbar |
39.6 |
42.2 |
42.2 |
39.7 |
|
Condensate temperature before recirculation enabling, °C |
75.0 |
64.9 |
52.9 |
25.5 |
Notes:
* At the boundary points
** Uncontrolled temperature
*** Pressure in steam drum of WHRB
The steam turbine plant (STP) with a T-113 / 145-12.4 turbine with capacity of 113 MW and auxiliary equipment supplied by CJSC “Ural Turbine Works” (Russian Federation), including the electrical part of the control system (EPCS) and the system of vibration control and vibration diagnostics.
The steam turbine characteristics are given in the Table.
Indicator name |
Operating mode |
|
|
Heat-extraction (nominal) |
Condensation |
||
Outside air temperature, °C |
-1.7 |
+15 |
|
Nominal capacity, MW |
113 |
145.7 |
|
Steam nominal parameters of high pressure circuit before the turbine: |
|
|
|
pressure, MPa (kgf / cm2) |
12.35 (125.9) |
|
|
temperature, °C |
557.5 |
562.6 |
|
consumption, t / h |
308.7 |
299.3 |
|
Steam nominal parameters of circuit of intermediate reheat before the turbine: |
|
|
|
pressure, MPa (kgf / cm2) |
2.95 (30.1) |
2.90 (29.6) |
|
temperature, °C |
553.0 |
559.0 |
|
consumption, t / h |
360.2 |
352.4 |
|
Medium pressure steam consumption (2nd circuit), t / h |
57.7 |
59.3 |
|
Steam nominal parameters of low pressure circuit before the turbine: |
|
|
|
pressure, MPa (kgf / cm2) |
0.475 (4 8) |
|
|
temperature, °C |
248.1 |
248.6 |
|
consumption, t / h |
49.8 |
46.4 |
|
Nominal (maximum) heating thermal load (summarized by both extractions), kJ / h (Gcal / h) |
921 (220) |
- |
|
Pressure in heating steam extractions, MPa (kgf / cm2): |
|
|
|
top (with a two-stage heating of the delivery water) |
0.059-0.245 (0.6-2.5) |
|
|
bottom (with a one-stage heating of the delivery water) |
0.049-0.196 (0.5-2.0) |
|
|
Cooling water passing through the condensers: |
|
|
|
minimum operational consumption, m3 / h |
18000 |
|
|
temperature at the input of the condensers. °C |
12 |
15 |
|
Pressure in the condensers during nominal consumption of the cooling water (clean pipes of heat-exchange surface, kPa (kgf / cm2) |
2.8 (0.029) |
3.3 (0.034) |
- The TF-160P-2UZ turbine generator with nominal capacity of 200 MVA (160 MW) and air-cooling supplied by OJSC “ELSIB RMA1” (Russian Federation);
- The equipment of CCGT-410 heat cycle arrangement (calorizator, pumps, ejectors, etc.);
- Gas receiving station with a booster compressor station (BCS) and a local control system (LCS);
- Liquid fuel storage facility with the LCS;
- Water treating plant with the LCS;
- Diesel power plant (DPP) with the LCS;
- Circulation and technical water supply with the LCS based on the DCS “TORNADO-N”;
- Electrical equipment of the unit consists of:
- generators;
- power transformers for power supply from the СCGT and STP generators;
- auxiliary power transformers;
- thyristor starting device;
- generator excitation systems;
- operating and reserve power inputs for 6 and 0.4 kV sections;
- 6 / 0.4 kV transformers;
- main 6 / 0.4 kV auxiliary devices.
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