Browse Publications Technical Papers 2010-01-0581
2010-04-12

Study of High Efficiency Zero-Emission Argon Circulated Hydrogen Engine 2010-01-0581

The potential of high efficiency zero-emission engines fueled by hydrogen, which is regarded as a promising form of energy for the future, is being researched. The argon circulated hydrogen engine [ 1 ] is one system theoretically capable of achieving both high efficiency and zero emissions, and its feasibility for use in vehicles has been studied. Specifically, tests were performed to verify the following issues. It was examined whether stable hydrogen combustion could be achieved under an atmosphere of argon and oxygen, which has a high specific heat ratio, and whether the substantial thermal efficiency improvement effect of the argon working gas could be achieved. An argon circulation system was also studied whereby steam, which is the combustion product of the hydrogen and oxygen emitted from the engine, is separated by condensation to enable the remaining argon to be re-used. In addition, the study also examined whether gas impurities accumulated in the circulation gas during continuous operation of the engine. The study demonstrated the feasibility of a high efficiency zero-emission automotive argon circulated hydrogen engine.

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