Browsing by Author "Ferreira, Nuno Rodrigo da Silva"
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- Failure Modes and Effects Analysis of Hydrogen in Gas TurbinesPublication . Ferreira, Nuno Rodrigo da Silva; Brojo, Francisco Miguel Ribeiro ProençaIn 2020, gas turbines generated 22% of global electricity demand. As the world focuses on decarbonization for a sustainable future, hydrogen has emerged as a leading alternative to conventional fuels in gas turbines. Consequently, significant efforts are underway to adapt existing turbines or develop new ones capable of burning hydrogen, presenting new risks and safety concerns. Therefore, it is essential to evaluate and mitigate potential hazards associated with hydrogen combustion in turbines. Failure Modes and Effects Analysis (FMEA) is a proven risk assessment tool that identifies and evaluates potential failure modes based on their occurrence, detection, and severity. The FMEA process typically involves seven key steps, ranging from system analysis to failure analysis, risk mitigation, and communication. This dissertation applies FMEA to the use of hydrogen in gas turbines, aiming to ensure safe and efficient utilization of hydrogen as an energy source. The study identifies key risks related to hydrogen storage and combustion, including hydrogen leakage, malfunctions due to low temperatures, flame-out, and excessive temperatures in the turbine and compressor. It then proposes strategies to mitigate these risks. Future research will focus on validating these mitigation measures in operational turbines and refining the FMEA framework to accommodate advancements in hydrogen technology. This work aims to support the safe integration of hydrogen into gas turbine systems, contributing to a more sustainable and reliable energy future.Documento em Acesso Embargado até dia 23-05-2028. Tente solicitar cópia ao autor carregando no ficheiro.