رضا بابايي

Nowadays, the use of hybrid power generation cycles to increase the output power and efficiency of gas power plants or conventional combined cycles has received great attention due to the increase in population and the resulting increase in electricity demand. In this regard, in this study, a combined cycle power plant complex with parabolic trough collectors that play an auxiliary role in the heat recovery steam generator section of the Rankine cycle of this power plant and also an absorption chiller for cooling the air entering the gas turbine compressor, which is fed through the gases resulting from the combustion of the gas turbine output and after passing through the heat recovery steam generator, has been integrated. Four analyses of energy, exergy, exergoeconomic and exergoenvironmental have been carried out in the engineering equation solver software to observe the performance and review of the proposed system. The eva‎luation results indicate that the proposed integrated power plant complex is capable of producing a net output power of 159 MW with thermal and exergy efficiencies of 49.77% and 46.95%, respectively. The results also show that the combustor is the equipment with the highest exergy destruction rate and cost rate related to exergy analysis, as well as the highest environmental impact due to the occurrence of the chemical reaction of combustion. In addition, the proposed system has a cumulative cost rate of 10,459$/h, the levelized cost of electricity of 0.066$/kWh, and the Levelized environmental impact of electricity of 22.2 mPts/kWh. In addition, by examining other important economic parameters, it was determined that the simple payback period and the payback period for the power plant complex are 10.38 and 12.64 years, respectively. Also, the internal rate of return is 8.3 percent and the net present value for the life of the power plant, which is considered to be 25 years, is positive and over $30 million.

توربين گازي , نيروگاه سيكل تركيبي , كلكتورهاي خورشيدي سهموي , چيلر چذبي , حل معادلات مهندسي , تحليل اقتصادي و زيست محيطي

gas turbine , combined cycle power plant , Solar Parabolic Trough Collector , Absorption Chiller , Engineering Equation Solver , Economic and Environmental analysis

Reza Babaei

Dr. Abolfazl Ahmadi