Environmental assessment of the hydrogen combustion process in non-premixed gas turbines

Abstract

Using cleaner fuels, such as hydrogen and developing more efficient combustion technologies are crucial in reducing NOx and N2O emissions, contributing to environmental concerns like air pollution and global warming. However, studies focusing on gas turbines using H-2 as fuel often overlook the emissions resulting from H-2 combustion. Given that gas turbines play a significant role in electricity generation globally, even minor improvements in their efficiency can lead to substantial cumulative benefits. Therefore, this study aims to address this gap by conducting a comprehensive environmental assessment using the life cycle assessment (LCA) methodology. By evaluating the environmental impacts of emissions from the combustion process of a conventional gas turbine and comparing them with potential emissions from H(2)combustion, this research seeks to provide valuable insights into the overall environmental performance of these technologies and contribute to sustainable energy development efforts. There have already been several LCA studies on H-2 production. In this study, we have identified the potential emissions and environmental impacts of H-2 combustion in gas turbines and compared them with the impact values of H-2 production regarding reference studies. The result shows that emissions during combustion should be considered in the identified life cycle impact categories.