Microbubble emission boiling (MEB) is the regime that occurs in the transition process from nucleate boiling to film boiling under high liquid subcooling condition, and realizes extremely high heat flux beyond the critical heat flux without a marked increase in the wall superheat. MEB has unique aspects different from that of ordinary boiling, such as a profusion of microbubbles emitted from a heating surface and extraordinary loud boiling sound. Such high heat flux is supposed to be sustained by a strong liquid supply to the heated surface like a micro-jet associated with a rapid collapse of a coalescent vapor bubble where the bubble shrinks toward the heating surface.
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