9/7/2023 0 Comments Steam account generator 2017![]() HRSG components that are most affected by fatigue are thick wall components such as high-pressure steam drums, superheater and reheater headers, manifolds, piping, and headers with flow divider plates. Schroeder, in Heat Recovery Steam Generator Technology, 2017 11.2 Components most affected Design for cycling has become commonplace. Emission regulations have had a great impact on the HRSG design and cost, both operating and installed. Saturated steam from other boilers may also be superheated in the HRSG. ![]() Small cogeneration plants may look at the option of heating thermal fluids such as glycol or therminol in the HRSG or generate low pressure deaeration steam to improve the HRSG efficiency as well as increase the steam turbine power output. Also advances in gas turbine technology, with higher exhaust gas temperature and large mass flows, warrants the use of reheaters, steam generation at very high pressure and temperature, and the use of condensate preheaters to improve the efficiency. With multiple pressure level steam generation and multiple modules, the need to optimize the gas/steam temperature profile is obvious. HRSG designs have come a long way, particularly for large gas turbines. Ganapathy, in Power Plant Life Management and Performance Improvement, 2011 16.6 Conclusion
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