Title :
Study on Thermodynamic System of Thermal Power Plant Based on Absorption Heat Pump
Author :
He Yongbing ; Wu Shijing ; Wang Jixuan
Author_Institution :
Sch. of Power & Mech. Eng., Wuhan Univ., Wuhan, China
Abstract :
The regenerative cycle system based on absorption heat pump heats feed water through steam driving absorption heat pump by absorbing the low temperature waste heat of circulating cooling water, the system can reduce the circulating water temperature and low pressure heater extraction, and further to improve the thermal efficiency of unit. By studying on supercritical 600MW unit according to equivalent enthalpy drop method, the influence of steam turbine efficiency and unit economical efficiency were analyzed. The analyses show that it is feasible to use the regenerator cycle system based on absorption heat pump in thermodynamic system of thermal power plant.
Keywords :
absorption; heat pumps; steam turbines; thermal power stations; thermodynamics; waste heat; circulating cooling water; circulating water temperature; equivalent enthalpy drop method; feed water; heater extraction; low temperature waste heat; power 600 MW; regenerative cycle system; steam driving absorption heat pump; steam turbine efficiency; thermal efficiency; thermal power plant; thermodynamic system; unit economical efficiency; Absorption; Heat pumps; Power generation; Thermodynamics; Waste heat; Water heating;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0545-8
DOI :
10.1109/APPEEC.2012.6306880