Abstract
This experimental study is performed to investigate heat transfer performance of a new self-oscillating heat pipe in the condition of different fill charge ratios and different heat fluxes. In this experiment, pure water is employed as the working fluid. The heat pipe is composed of a heating section, a cooling section and an adiabatic section. The heating and cooling sections have the same size and are connected by four circular parallel tubes. The corresponding external dimensions are 45mm in length, 45mm in width and 8mm in thickness, and the internal dimensions are 42mm, 42mm and 5mm, respectively. The adiabatic section is consisted of four parallel circular tubes whose dimension is φ6 (external diameter) x φ5 (internal diameter) x 45 (length) mm. A series of experiments with different fill charge ratios and heat fluxes were carried out to measure temperature of the heat pipe. It is found that heat transfer performance as well as effective thermal conductivity of the heat pipe affected by various operating conditions.
