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New retrofit lets micro-turbines burn both hydrogen and natural gas
As a way to keep small natural gas power plants operating in anticipation of a hydrogen economy, the Deutsche Zentrum für Luft und Raumfahrt (German Aerospace Center, or DLR) and Power Service Consulting (PSC) have tested a way for micro-turbines to burn hydrogen, gas, or both.
As we aim to decarbonize energy production, green hydrogen has been suggested as a possible climate-friendly alternative to burning natural gas. Hydrogen burns much hotter than natural gas and has a much lower flash point, so it can easily wreck the combustion chamber of a micro-turbine with its heat and shockwave. Unlike the usual arrangement, the air and fuel injectors are set in a ring that generates a backflow in the chamber that pushes the exhaust gases back to mix with the new air/fuel mixture.
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