Fourier transform method for sensitivity analysis in coal fired power plant

Bresolin, Cirilo S., Diniz Da Costa, Joao C., Rudolph, Victor and Schneider, Paulo S. (2007) Fourier transform method for sensitivity analysis in coal fired power plant. Energy Conversion and Management, 48 10: 2699-2707. doi:10.1016/j.enconman.2007.04.024


Author Bresolin, Cirilo S.
Diniz Da Costa, Joao C.
Rudolph, Victor
Schneider, Paulo S.
Title Fourier transform method for sensitivity analysis in coal fired power plant
Journal name Energy Conversion and Management   Check publisher's open access policy
ISSN 0196-8904
Publication date 2007
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.enconman.2007.04.024
Volume 48
Issue 10
Start page 2699
End page 2707
Total pages 8
Editor N. Lior
J. C. Denton
Place of publication United Kingdom
Publisher Pergamon-elsevier Science Ltd
Collection year 2008
Language eng
Subject 291899 Interdisciplinary Engineering not elsewhere classified
660101 Coal-electricity
C1
Abstract This work proposes a Fourier transform method to determine the sensitivities associated with a real coal power plant using a Rankine cycle. Power demand determines the plant revenue and is supposed to be the most important parameter to be accurately measured, and this hypothesis is at the center of this study. The results confirm that under full design load, variables such as steam pressure, temperature and mass flow rate are closely dependent on power demand, though overall thermal efficiency is more sensitive to boiler efficiency. Partial load simulation shows that the overall thermal efficiency remains strongly dependent on the boiler parameters, but other operational variables such as steam temperature at the turbine outlet changes its sensitivity according to the load. The results from the Fourier transform method are in good agreement with those determined by classical differential and Monte Carlo methods. However, the Fourier transform method requires only a single run, providing major savings in computational time as compared to the Monte Carlo method, a major advantage for analysis of power systems whether operating under full or partial load.
Keyword Thermodynamics
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Fri, 11 Apr 2008, 10:44:03 EST by Gail Smith on behalf of School of Chemical Engineering