A Technical and Economic Overview of the Benefits of Repowering

1975 ◽  
Author(s):  
R. A. Gerstin
Keyword(s):  
Heat Recovery ◽  
General Consideration ◽  
Economic Factors ◽  
Steam Turbines ◽  
Alternate Form ◽  
Recovery Boilers ◽  
Steam Plant

General consideration for matching combustion and steam turbines are discussed as a background for the typical Repowering study. Different arrangements of the combustion turbines and heat recovery boilers are presented, discussed, evaluated, and a comparison of the systems are made. To complete the investigation, a series of economic factors are considered for comparison between Repowering and an alternate form of generation. In conclusion, by incorporation of combustion turbines in Repowering of an old steam plant, the extended use of combustion turbines can be justified.

scholarly journals Calculation Code for Helically Coiled Heat Recovery Boilers

2014 ◽  
Vol 45 ◽  
pp. 492-501 ◽  
Author(s):  
Alberto Sogni ◽  
Paolo Chiesa
Keyword(s):  
Heat Recovery ◽  
Recovery Boilers ◽  
Calculation Code

Exergy Evaluation of Two Current Advanced Power Plants: Supercritical Steam Turbine and Combined Cycle

1997 ◽  
Vol 119 (4) ◽  
pp. 250-256 ◽  
Author(s):  
H. Jin ◽  
M. Ishida ◽  
M. Kobayashi ◽  
M. Nunokawa
Keyword(s):  
Steam Turbine ◽  
Thermal Efficiency ◽  
Heat Recovery ◽  
Power Plants ◽  
Exergy Analysis ◽  
Combined Cycle ◽  
Exergy Loss ◽  
Heat Recovery Steam Generator ◽  
Combined Cycle Plant ◽  
Steam Plant

Two operating advanced power plants, a supercritical steam plant and a gas-steam turbine combined cycle, have been analyzed using a methodology of graphical exergy analysis (EUDs). The comparison of two plants, which may provide the detailed information on internal phenomena, points out several inefficient segments in the combined cycle plant: higher exergy loss caused by mixing in the combustor, higher exergy waste from the heat recovery steam generator, and higher exergy loss by inefficiency in the power section, especially in the steam turbine. On the basis of these fundamental features of each plant, we recommend several schemes for improving the thermal efficiency of current advanced power plants.

A discrete and continuous mathematical model for the optimal synthesis and design of dual pressure heat recovery steam generators coupled to two steam turbines

Energy ◽  
2016 ◽  
Vol 103 ◽  
pp. 807-823 ◽  
Author(s):  
Juan I. Manassaldi ◽  
Ana M. Arias ◽  
Nicolás J. Scenna ◽  
Miguel C. Mussati ◽  
Sergio F. Mussati
Keyword(s):  
Mathematical Model ◽  
Heat Recovery ◽  
Optimal Synthesis ◽  
Steam Turbines ◽  
Steam Generators
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