In this paper, a novel method for enhancing the heat transfer performance of TPCT is proposed. And this novel method is to build a novel thermosyphon by introducing fluidized bed heat transfer technology into TPCT. The heat transfer performance of the novel thermosyphon is experimentally investigated. Results show that the heat transfer performance of the novel thermosyphon is significantly improved compared with the TPCT with pure water. In the domain of the filling volumes considered in the experimental work, the maximum heat transfer performance is obtained with filling volume phi = 40%, the amount of added particles epsilon(s) = 10% and heating power Q(H) 1000 W, and the overall thermal resistance is reduced by 8.3%. The evaporation and condensation heat transfer coefficients arc improved by up to 8.9% and 50.9%, and the corresponding optimal filling volume is 40% and 60% at epsilon(s) = 10%, Q(H) = 1000 W and epsilon(s) = 5%, Q(H) = 500 W. respectively. (C) 2020 Elsevier B.V. All rights reserved.