600 MW Direct Air-Cooling Unit Back-Pressure Optimization and Theoretical Analysis

Hong Bin Zhao; Yong Hui Yan; Meng Li

doi:10.4028/www.scientific.net/AMR.875-877.1739

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 875-877600 MW Direct Air-Cooling Unit Back-Pressure...

600 MW Direct Air-Cooling Unit Back-Pressure Optimization and Theoretical Analysis

Abstract:

In recent years, direct air cooling units have developed rapidly in China, but in the actual operation, the back-pressure often deviate from the optimal back-pressure, which affect the economy of the unit. The paper has figured out the optimum back-pressure, fan speed and power gain with the method of equivalent enthalpy drop; the paper also worked out the exergy loss of each device before and after the optimization. Through the exergy efficiency analysis of the devices before and after the optimization, we find out that after optimization, exergy loss of the turbine reduces by 0.954MW and the net amount of the generated power increases 130.5kW, the net exergy efficiency of units improves about 0.018 percent points.

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Periodical:

Advanced Materials Research (Volumes 875-877)

Pages:

1739-1743

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.875-877.1739

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Online since:

February 2014

Authors:

Hong Bin Zhao, Yong Hui Yan, Meng Li

Keywords:

Equivalent Enthalpy Drop, Exergy Efficiency, Optimum Back-Pressure, Power Gain

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