Based on a simple model, an analytical solution was obtained to predict the heat transfer rate of a wickless heat pipe which is conical in shape and rotates about its longitudinal axis. The rotating heat pipe utilizes centrifugal force, instead of capillaries, for the return-pumping of the condensate. The heat transfer rate of the rotating heat pipe is then compared with the existing result of a conventional capillary heat pipe to demonstrate the merit of the former. © 1971.
Chan, S. H., Kanai, Z., & Yang, W. T. (1971). Theory of a rotating heat pipe. Journal of Nuclear Energy, 25(10), 479–487. https://doi.org/10.1016/0022-3107(71)90028-1