Flow‐controlled thermosyphon using multi‐stacked radiator cores

We have been developing a more compact cooling unit compared with the conventional, cooling aluminum fin and the heat pipe-type cooling unit. The aim of this paper is to examine the cooling performance of the cooling unit using multi-stacked radiator cores and a new flow controller. We propose a new simple structure for the refrigerant circulation flow using multi-stacked radiator cores with holes at both ends. Further we clarified that the cooling performance is greatly improved by the new refrigerant flow controller if the cooling unit is inclined.