technical NOTES

(Project Pridr) #1

Control Philosophy:



  • Injection steam line is provided with basket strainer, quick closing valve, and
    pressure control valve.

  • Injection line and turbine mid stage section is provided with pressure and
    temperature transmitters.

  • Turbine is operated in load control mode and / or flow control mode.

  • During injection cycle, line pressure control valve is governed by target pressure
    generated by external controller which in turn is linked to mid stage pressure.

  • In the event of grid outage, turbine trip valve and injection line trip valve is closed.
    Process Mechanical Design:

  • Dual Injection (HP 14 kg/cm2 (a) & LP 2.5 kg/cm3 (a) Turbine

  • Steam temp. at the inlet of turbine ESV. HP -460 Dec C & LP -185 Deg C

  • Margin on TG Capacity (10%)

  • Minimum expected load at which TG is expected to operate 30% MCR

  • Top exhaust Turbine to reduce Civil cost & reduce construction time for Turbine
    is planned

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