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Graphene synthesis on ultrathin metal catalyst films

Graphene synthesis on ultra-thin catalysts can allow the use of graphene-coated metal films in electronic applications. Graphene coated thin films are expected to offer superior mechanical performance owing to the strength of graphene. However, …

Impact of cross-sectional area ratio on time-averaged pressure drop induced by jet pump for thermoacoustic engine

Gedeon streaming, a time-averaged mass flow circulating throughout the loop configuration in the oscillating flow, can considerably deteriorate the thermal efficiency of traveling-wave thermoacoustic engine. Jet pump is characterized by a tapered …

Theoretical analysis and experimental validation of a pulse tube with a cold reservoir

In order to improve the cooling performance of pulse tube cryocoolers (PTC), a novel configuration is proposed where a reservoir is added through an orifice valve to the cold end of pulse tube. The additional resistant element to the cold end helps …