Dual-Cycle Gas Turbines: Higher Efficiency, Lower Emissions<br />By: Eng. Abdullah Marza Hamza<br /><br />Sustainable Development Goals:<br /> Goal 7: Affordable and Clean Energy<br /> Goal 9: Industry, Innovation, and Infrastructure<br /> Goal 13: Climate Action<br /><br />Dual-cycle gas turbines combine features of both the Brayton and Rankine cycles to achieve improved efficiency and reduced emissions in power generation. By integrating a steam bottoming cycle with the gas turbine, these systems recover waste heat, increasing overall energy conversion.<br /><br />This combined cycle approach enables higher power output from the same amount of fuel and lowers carbon dioxide emissions compared to simple-cycle turbines. It also allows greater flexibility in fuel types, including natural gas, biogas, and synthetic fuels.<br /><br />Advances in materials, turbine blade design, and combustion technologies have further enhanced the performance and durability of dual-cycle turbines. Their deployment in power plants contributes significantly to meeting stringent environmental regulations and sustainability targets.<br /><br />The dual-cycle turbine concept exemplifies innovation in thermal power technology, balancing economic viability with environmental responsibility. It supports the global transition toward cleaner and more efficient energy systems.<br /><br />Al-Mustaqbal University – The No. 1 Private University in Iraq