Enhanced flow boiling in microchannels using auxiliary channels and multiple micronozzles (I): Characterizations of flow boiling heat transfer

•A four-nozzle microchannel configuration is developed to extend mixing effect.•The ONB temperature is considerably reduced by 14% owing to more nucleation sites.•The overall HTC and effective HTC are significantly enhanced on the present design.•The enhancements of overall HTC and effective HTC are...

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