Energy, Exergy-Based and Emergy-Based Analysis of Integrated Solar PTC with a Combined Cycle Power Plant

Abstract

Solar energy is one of the most promising strategies to reduce energy consumption and emissions pollutions. In this paper, integrating a combined cycle power plant with a Solar Parabolic Trough Collector (PTC) is evaluated and investigated. In this regard, Qom Combined Cycle Power Plant is considered a real case study in Qom city. Energy, Exergy, Exergoeconomic, Exergoenvironment, Emergoeconomic, and Emergoenvironemntal Analysis as (6E) Analysis have been performed to understand the base plant's integration better. Environmental impacts have been calculated by Life Cycle Assessment (LCA) in Sima Pro Software. Also, computer code has been developed for 6E analysis of base and integrated power plants. Validation of thermodynamic simulation has been examined with Thermoflex Software and plant data. Energy analysis results show the power output of the steam plant and overall energy efficiency is increased to 7.14% and 4.44 % rather than the base case without adding additional fossil fuel. It shows the power generation and energy efficiency are increased significantly by adding PTC. Also, the overall exergy destruction and the total exergy cost rates are raised to 7 % and 11.27 %. In addition, overall environmental impacts, overall emergoeconomic, and overall emergoenvironmental values are increased to 1.67%, 6.2%, and 15.4%, respectively. However, the overall environmental impacts per net power are decreased.