Open AccessThe efficiency analysis of a 300 MW steam turbine unit after the through-flow transformation of based on thermal performance test method
Author(s) -
B. Wang,
Yuanyuan Zhao
Publication year - 2018
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/188/1/012092
Subject(s) - turbine , steam turbine , thermal , feedwater heater , thermal efficiency , flow (mathematics) , surface condenser , heat recovery steam generator , nuclear engineering , steam electric power station , mechanical engineering , thermal power station , engineering , process engineering , materials science , environmental science , superheated steam , mechanics , combined cycle , waste management , thermodynamics , chemistry , physics , organic chemistry , combustion
In this paper, the thermal performance of a 300 MW subcritical steam turbine is studied. The influence of the flow remoulding technology on the heat dissipation rate is analyzed by comparing the thermal performance test data before and after the transformation and after the completion of the operation. It focuses on the reasons for the decline in thermal performance after four-year operation. Through the transformation of the flow remoulding can greatly enhance the efficiency of the steam turbine, the gap between the steam seal and cylinder defect are the main reasons for the decrease of the thermal performance of the steam turbine after four years of operation. After four years of operation, the efficiency of the steam turbine is still superior to that before the flow.