Title :
Optimization of the heat recovery section in combined powerplants
Author :
Stecco, S.S. ; Desideri, U.
Author_Institution :
Dept. of Energy Eng., Firenze Univ., Italy
Abstract :
An optimization procedure is presented for combined power plant heat recovery boilers (HRBs), which are the components with the greatest single impact on plant cost and efficiency. A calculation code was developed to solve the thermodynamic balance and compute the exergetic losses in a single-pressure HRB. The code was tested on three working fluids (water, ammonia, and a mixture of both). Results show that maximum energetic efficiency and maximum output are achieved separately, using different design parameters
Keywords :
boilers; combined cycle power stations; optimisation; thermodynamics; combined power plant heat recovery boilers; efficiency; exergetic losses; maximum energetic efficiency; maximum output; optimization; single-pressure HRB; thermodynamic balance; Boilers; Cogeneration; Gases; Heat recovery; Heat transfer; Surface discharges; Temperature sensors; Thermodynamics; Trigeneration; Water heating;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74831
