Comparative Performance Analysis of Gas Turbine with and without Intercooler using Natural Gas and Hydrogen Fuels
Received: 27 August 2024 | Revised: 15 September 2024 | Accepted: 19 September 2024 | Online: 26 October 2024
Corresponding author: Asad Ali Sodhro
Abstract
The Gas Turbine (GT) represents one of the most significant technological advancements of the early 20th century. A limited number of studies have explored the significance of intercooling in improving GT efficiency. Specifically, the comparative performance of GT utilizing Natural Gas (NG) and hydrogen fuel, with and without intercoolers, remains largely unexplored. In this study, design point and off-design performance models for a three-shaft GT were developed using commercial software. During the model development process, the intercooler was considered, as the GT was originally designed with an intercooler. The intercooler was subsequently deactivated to simulate the GT's performance with NG and without an intercooler. Following this analysis, the fuel type was switched to hydrogen to investigate the performance of the GT with and without an intercooler. The results indicate that the inclusion of an intercooler increases the power output from 75,176.8 kW to 99,000.2 kW for NG and from 75,012.2 kW to 99,001.6 kW for hydrogen. However, the thermal efficiency marginally decreases from 45.5% to 45.14% for NG and from 45.9% to 45.52% for hydrogen. These findings demonstrate that the intercooler enhances power output but results in a minor drop in efficiency. Furthermore, hydrogen consistently exhibits superior thermal efficiency and fuel consumption compared to NG in both scenarios.
Keywords:
GT, intercooler, hydrogen fuel, NGDownloads
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Copyright (c) 2024 Asad Ali Sodhro, Tamiru Alemu Lemma, Syed Ihtsham Ul-Haq Gilani, Waleligne Molla Salilew
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