Thermal Transport Properties of Multiple Oscillating Heat Pipes under Simultaneous Operation

Abstract

In this paper, it is shown that the results of experiments on which four oscillating heat pipes (OHP) were simultaneously operated. The OHP is formed into board shape and the four OHPs were put radially. Two FRP disks as dummy winding held the OHPs. Stainless steel sheet heaters were inserted between OHPs and FRP disks, to simulate heat generation in the winding. This equipment was cooled by circulation helium gas. The helium gas flowed in the copper pipe. The copper pipe was soldered to copper plates mounted to cooling edge of the OHPs. Four buffer tanks were connected to each OHP to control the pressure of each OHP individually. The working fluid of the OHPs was Neon. It was demonstrated that all OHPs were simultaneously operated.