TY - JOUR ID - 158101 TI - Investigation of a Set of Novel Heat Exchanger Configurations of a Heat Recovery Steam Generator to Improve the Energy Efficiency of Combined Cycle Power Plant JO - Journal of Renewable Energy and Environment JA - JREE LA - en SN - 2423-5547 AU - Rasooli Mavini, Mohammad AU - Ozgoli, Hassan Ali AU - Safari, Sadegh AD - Department of Energy Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University (IAU), P. O. Box: 14515-775, Tehran, Tehran, Iran. AD - Department of Mechanical Engineering, Iranian Research Organization for Science and Technology (IROST), P. O. Box: 33535-111, Tehran, Tehran, Iran. Y1 - 2023 PY - 2023 VL - 10 IS - 1 SP - 68 EP - 82 KW - HRSG KW - CHP KW - Configuration Analysis KW - Energy efficiency KW - Environment analysis DO - 10.30501/jree.2022.326260.1317 N2 - In this study, various configurations design of a Heat Recovery Steam Generator (HRSG) are examined to enhance energy efficiency of a Combined Cycle Power Plant (CCPP). A novel approach is used to investigate ten applicable configurations of a dual pressure Heat Recovery Steam Generator HRSG thoroughly to explore the best practice models from the energy-conserving considerations. Further, a fuel consumption assessment has been conducted to identify the best performance of the cycle and investigate the minimum pollutants released of each Heat Recovery Steam Generator (HRSG) configuration. The results have revealed that four scenarios among ten, have expressed a considerably better performance regarding; fuel consumption, steam production, energy efficiency, and finally yet importantly environmental considerations. Further, it has been found that in comparison to the conventional configuration, not only the selected scenarios have proved almost four times improvement in the low-pressure steam generation, but also 30% fuel consumption saving in supplementary firing has been achieved which has both economic and environmental benefits. Moreover the carbon dioxide saving potential for the best scenario is 51.37 kgCO2 MWh-1 consequently the environmental benefit of it is calculated about 133,418 $ MWh-1. UR - https://www.jree.ir/article_158101.html L1 - https://www.jree.ir/article_158101_1416e4201c7cd5348d2a14b27c29cd86.pdf ER -