Abstract
A Capillary Pumped Loop (CPL) is a two-phase heat transfer device with high efficiency. It does not need any external energy or other mechanical force such as pumping force. A CPL has been widely utilized to perform the thermal management for high power electronic components such as in spacecrafts, notebooks and computer servers. This research aimed to study the simulation method of the temperature distribution of the CPL with dual core evaporators. A steady-state axial heat transfer method was developed to predict the temperatures of the pipelines. The temperatures of the segments of the CPL could be reckoned from the theoretical model. A good agreement between the simulation results and experimental values was achieved. The Temperatures would increase with increment of the applied heat load. The maximum error between the experimental data and simulation results for evaporator temperatures of the CPL with dual core evaporators was within 10% at 190 watts heat input, but the error is lower within 5% with decreasing of the heat load, when it is less than 150 watts, namely 80 watts, 100 watts, 130 watts and 150 watts. In this study, the simulation results can be used for the new application of the design and simulation of Vapor Chambers (VCs) for the similar heat transfer mechanism with the heat transfer models to be more complex expanded as two dimensional or three dimensional models. In addition, the simulation results and experimental data are very good and consistent, and they would be very useful for further applications in the industries of green technology of solar cells, photovoltaic modules by solar energy, and solar thermal energy for electric power generation, LEDs, LED lighting and LED related industries.