Title :
Optimum design of combined cycle plant for electrical, heating and cooling energy supplies
Author :
Nagafuchi, N. ; Yamada, A. ; Matsumoto, H.
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
fDate :
28 Oct-1 Nov 1991
Abstract :
A combined cycle plant for electrical, heating, and cooling energy supplies which has a double-pressure-type condenser and a water heater is proposed. Using the complex method of M. J. Box (1965), design parameters of the proposed plant are optimized. The evaluation function consists of four design parameters: the flow ratio of low-pressure exhaust steam to total exhaust steam, the pressure of low-pressure steam to the turbine, the outlet water temperature of the water heater, and the flow rate of condenser cooling water. Simulation studies for a plant with an absorption refrigerator prove that its overall heat utilization factor is improved by 3.2% compared with a plant which has a single-pressure-type condenser and no water heaters
Keywords :
combined cycle power stations; condensers (steam plant); steam turbines; absorption refrigerator; combined cycle plant; cooling energy supplies; double-pressure-type condenser; electrical energy supplies; exhaust steam; heating energy supplies; optimum design; outlet water temperature; steam pressure; turbine; water heater; Absorption; Cooling; Heat recovery; Refrigeration; Resistance heating; Temperature; Turbines; Waste heat; Water heating; Water resources;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239184
