The Argon Power Cycle: Characterization of Hydrogen Injections

In order to solve the problem of intermittently available renewable energy sources in the future, the Argon Power Cycle is introduced. The Argon Power Cycle is expected to become an important enabler for the use of hydrogen as a chemical energy carrier in the future. The main drawbacks of using hydrogen in internal combustion engines, high NOx emissions and low thermal efficiency are solved with the use of the noble gas Argon as a working fluid in a closed cycle. To investigate different hydrogen and oxygen direct injection strategies, a new experimental setup has been developed. To investigate jet penetration and cone angle, Schlieren measurements are conducted, while the mass of injection and discharge coefficient are calculated with the use of pressure transducer measurements. The results clearly show which setup variables affect jet propagation, injected mass, and the discharge coefficient.