A Review of Working Fluids and Flow State Effects on Thermal Performance of Micro-Channel Oscillating Heat Pipe for Aerospace Heat Dissipation

A MCOHP (micro-channel oscillating heat pipe) can provide lightweight and efficient temperature control capabilities for aerospace spacecraft with a high power small size. The research about the flow effects on thermal performance of MCOHPs is both necessary essential dissipation. In this paper, are summarized studied. enhancement changes given, which caused by work fluids nano-fluids, gases, single liquids, mixed surfactants, self-humidifying fluids. use graphene nano-fluids as medium reduce resistance 83.6%, enhance maximum conductivity 105%. influences gravity characteristics also discussed. pattern stage, affects mode mass transfer efficiency OHP. effective varies from 4.8 kW/(m·K) to 70 when different gases selected working fluid in study conducive exploring in-depth applications.