Title :
Influence of Cooling Circulating Water Flow on Back Pressure Variation of Thermal Power Plant
Author :
Nian Zhonghua ; Liu Jizhen ; Liu Guangjian
Author_Institution :
North China Electr. Power Univ., Beijing, China
Abstract :
Under certain conditions, condenser pressure can be considered as back pressure of the steam turbine, which has great influence on the unit power. Based on the back pressure calculation model, influence on back pressure variation by adjusting circulating water flow is discussed in this paper. The model is developed from mechanism analysis of the condenser and cooling tower. Results show that cooling water inlet temperature is an important parameter during the back pressure calculation. Changing the unit output by adjusting circulating cooling water flow of the cold-end system has different effects on the unit output increment and decrement.
Keywords :
cooling; pressure; steam turbines; temperature; thermal power stations; back pressure variation; cold-end system; condenser mechanism analysis; condenser pressure; cooling circulating water flow; cooling tower; cooling water inlet temperature; steam turbine; thermal power plant; unit output decrement; unit output increment; Atmospheric modeling; Cooling; Heating; Load modeling; Poles and towers; Turbines; Cold-end system; back pressure; cooling water flow; unit power;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2013 Fifth International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-5652-7
DOI :
10.1109/ICMTMA.2013.154
