Abstract
An exergo-economic analysis is carried out for a combined cycle power plant using the first law and the second law of thermodynamics, and the economic principles while incorporating GT PRO/PEACE Software Packages. An overall performance index (OPI) is defined to assess and analyze the optimum operational and design configurations of the power plant. Four performance indicators are considered for the analysis; namely, energy efficiency (ENE), exergy efficiency (EXE), levelized cost of electricity (COE), and the total investment (TI) cost. Three possible scenarios are considered in which different weight factor is assigned to the performance indicators when assessing the performance. These scenarios are: (i) the conventional case in which the levelized cost of electricity is given a high priority, (ii) environmental conscious case in which the exergy efficiency is given a high priority, and (iii) the economical case in which the total cost of investment is given a high priority. It is shown that the optimum size and the configuration of the power plant differ for each scenarios considered. The selection and optimization of the size and configuration of the power plant are found to be depending on the user priorities and the weight factors assigned to the performance indicators.
| Original language | English |
|---|---|
| Pages (from-to) | 91-100 |
| Number of pages | 10 |
| Journal | Energy Conversion and Management |
| Volume | 116 |
| DOIs | |
| Publication status | Published - 15 May 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Elsevier Ltd. All rights reserved.
Keywords
- Combined cycle power plant
- Exergo-economic analysis
- Overall performance index
- Performance analysis
- Performance optimization
