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Recent Developments in Reheat Rankine Cycle

Recent Developments in Reheat Rankine Cycle. BY P M V Subbarao Professor Mechanical Engineering Department I I T Delhi. New Efforts to Realize Isothermal Heat Addition…. Progress in Rankine Cycle. Reheating : A Means to implement High Live Steam Pressure. Supercritical. 593/621 0 C.

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Recent Developments in Reheat Rankine Cycle

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  1. Recent Developments in Reheat Rankine Cycle BY P M V Subbarao Professor Mechanical Engineering Department I I T Delhi New Efforts to Realize Isothermal Heat Addition…..

  2. Progress in Rankine Cycle

  3. Reheating : A Means to implement High Live Steam Pressure Supercritical 593/6210C 593/5930C 565/5930C 565/5650C 538/5650C Improvement in Efficiency, % 538/5380C

  4. Modular Construction of Steam Turbine

  5. Super Critical Cycle ~ 1990

  6. Single-Reheat Ultrasupercritical Product LineGE Power

  7. Modular High-Temperature Gas-Cooled Reactor

  8. Modular High-Temperature Gas-Cooled Reactor with Supercritical Rankine Cycle

  9. Model – 2 :MHTGR

  10. Special Features • SG for the Life Steam Supplier : For the selected turbine set, the feedwater temperature is 283°C, while the SC steam parameters at SG outlet are 25.4 MPa/571°C. • For the helium side of SG, the inlet temperature is kept at 750°C to maintain 179°C temperature difference between the helium and the SC steam for effective heat transfer. • The outlet helium temperature should be increased from 250°C for the standard MHTGR-250 design to 330°C to maintain effective heat transfer between the helium and the feedwater. • Although high steam pressure and temperature involves modifications of the once-through SG and relevant pipes, no additional difficulties in design and manufacture are expected.

  11. (Reheat Exchanger for Reheat Steam Supply • For the selected turbine set, the steam parameters at the inlet of the reheat exchanger are 4.38 MPa/311°C and 4.19 MPa/569°C at the outlet. • For the helium side of reheat exchanger, the helium temperature at both inlet and outlet should be 350°C/750°C.

  12. Deployment mode of MHTGR SC plant with life steam reheat cycle

  13. Double Reheat Ultra Super Critical Cycle 8

  14. Improvement in Efficiency, %

  15. Super Critical Cycle of Year 2005

  16. Double Reheat Super Critical Plants Net efficiency on natural gas is expected to reach 49%. Net efficiency on coal is expected to reach 47%.

  17. Super Critical Cycle of year 2010 > 50 %

  18. Double-Reheat Ultrasupercritical Product LineGE Power

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