Research on Heat Transfer Performance of Heat Pipe in Mobile Small Reactor

Abstract Mobile heat pipe small reactors, with their simple structure, high mobility and inherent safety features, is a hot frontier topic for research at present. Based on Fluent software, numerical simulations are used to study the changes in the steady-state operating parameters of a high-temperature potassium heat pipe, and to investigate the effects of the horizontal acceleration, inclination angle and saturation temperature of the mass inside the heat pipe on the overall heat transfer performance of the heat pipe. It is found that the heat transfer performance of the heat pipe increases as the saturation temperature of the mass inside the tube decreases; the overall thermal resistance of the heat pipe tends to decrease and then increase slightly with increasing horizontal acceleration; the overall thermal resistance of the heat pipe tends to decrease and then increase with increasing tilt angle.