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| Supply and Installation of Gas Turbine Inlet Air Cooling System for 10 GE type 7001EA gas turbine generating sets at Riyadh – PP8. The scope of work includes the design, engineering, manufacturing, supply, construction, erection, testing and commissioning.
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Project Goals
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| To improve the output power of 10 GE type 7001EA gas turbine generating sets by 30%. Total improvement is 177MW at 50°C ambient.
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Project Data
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| Starting Date : 07/07/2003
Technical Completion Date : 07/05/2005
Preliminary Acceptance : 22/06/2005
Final Acceptance : 25/09/2005
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Project Description
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- The system is a full storage thermal energy system designed to have two main cycles of operation during a 24 hour period.
- Build cycle, 18 hours at 48°C
- Burn cycle, 6 hours at 50°C
- TIAC system; simulates turbine winter operating conditions (higher power output) by lowering the temperature of the air entering the turbine.
- TES System; allows owner to “build” energy storage during off-peak periods and “burn” this stored energy during peak periods.
- The system is designed to cool the inlet air for 10 turbines from 50°C ambient and 10%RH to 13°C entering the turbine, TIAC System improves thermal efficiency.
- The generator inlet air will be cooled to 30°C in order to cater for the excess load generating at 50°C ambient.
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Electrical Services
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- Carrying out double banking modification of two existing feeders from substation 8061 and 8072 which will feed two 3 winding 30MVA transformers 132/4.16/4.16
- Supplying 2 x 30MVA 132/4.16kV power transformers.
- Supplying medium voltage system consisting of 20 breakers, including all protection relays.
- Supplying 4 x 2MVA 4.16/0.48kV station transformers.
- Supplying low voltage MCCs including variable speed drives.
- All needed controls including DCS.
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