Title :
Combined Performance Analysis of CHP System
Author :
Lin, Zhen-xian ; Yang, Yong-Ping
Author_Institution :
Sch. of Energy & Power Eng., North China Electr. Power Univ., Beijing, China
Abstract :
This paper studies the full conditions of CHP system under taking the heat-supply network, thermal-system heater and cogeneration steam turbine as a whole. The combined performance can be obtained according to the performance of heat-supply network, thermal-system heater and low pressure cylinder. Analyzed qualitative the combined performance, it can be accurately obtained that the variations of the extraction parameters for heating, the exhaust steam pressure of intermediate pressure cylinder last stage and the inlet steam pressure of low pressure cylinder are due to the variations of heat load under the all operating conditions of the CHP system; non-throttle operating point, which is proposed by this paper, is the best operating point of units, at the time, there are no throttle loss at the governing valve of low pressure cylinder and the control valve of heating extraction.
Keywords :
cogeneration; combined cycle power stations; CHP system; cogeneration steam turbine; combined performance analysis; control valve; exhaust steam pressure; extraction parameters; heat load; heat-supply network; heating extraction; inlet steam pressure; intermediate pressure cylinder; low pressure cylinder; nonthrottle operating point; thermal-system heater; throttle loss; Cogeneration; Electron tubes; Heat transfer; Turbines; Valves; Water heating; cogeneration system; combined performance; full condition; non-throttle operating point;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.152
