Dual-flow state, under conditions not caused boiling heat transfer performance can be better than a single State because flowmeter-flow dual status, the value, the higher the Nu flow flowing form a single State.
The two-state flow conditions can not be boiling heat transfer efficiency, better flow status because of the two-state to a higher value Nu Flow Flow solo status.
Two-phase flow under conditions of no boiling heat transfer performance can be better than the flow status of single because of two-phase flow Nu value higher than the flow the flow status of single