Water and steam injection in micro gas turbine supplied by hydrogen enriched fuels: Numerical investigation and performance analysis

摘要: Abstract This paper investigates the energetic and environmental performance of micro gas turbine plant with two proposed concurrent improvements: methane-based fuel enriched by hydrogen humidification cycle. The benefits both features are well-know, aim this work is analysis their combined impact on operation. Despite enhancing H2 involves significant advantages like greenhouse emission reduction a better combustion in case low LHV fuels, most commercial combustors not able to burn fuels high content unless structurally modified. On contrary, has been demonstrated that humidified turbines (i.e., water injection, humid air (HAT) steam injection (STIG) cycles) improve stability as well electric power delivered efficiency. Hence, order investigate feasibility features, first step was thermodynamic supplied up 20%vol, considering dry cycles. Since anomaly detected, i.e., flashback, CFD study chamber, combustor added layout overcoming anomaly, its effect process analyzed also raising 30%vol. main outcome assessment supplying HGT-STIG enrichment 30%vol, achieving safe regular mainly owing mass flow equal 125% flow.