Abstract
The purpose of the thesis is to test the heat pipe maximum heat transfer rate (Qmax) of the electronics cooling system. Two test methods were compared with each other which were Traditional Standard Test Method and Dynamic-Temperature-Tracing Method (D.T.T.). A sensitivity study was also achieved by this thesis. In order to maintain axial temperature difference less than 10C and radial temperature difference less than 20C, a non-uniform power load was introduced into the evaporator. The non-uniform power load can let the heat homogeneously flow into the evaporator. The error of Qmax between Traditional Standard Test Method and Simulation result is under 10％, and the error of Qmax between D.T.T Method and Simulation is under 15％. The results of D.T.T. show that in the same test period, when the condenser length is decreasing, then reduce the cooling water temperature would increase the accuracy. The lower temperature of the cooling water was implied a lower adiabatic temperature, then the Qmax was decreasing too and result in the decreasing of the test period. In addition, the test time of D.T.T. method can only increase 5% error equally by 5 minutes reductions to 2 minutes. Therefore, under the maintenance experiment result accuracy, the test time could reduce to 2 minutes.