Heat Transfer for Turbulent Flow of Helium or Hydrogen in a Tube at High Temperatures: Evaluation with the Method of Petukhov

摘要

Experimental heat transfer data of various authors for the turbulent flow of helium or hydrogen in circular tubes at very high wall temperatures (up to 2800 exp 0 C) have been reevaluated with the method of Petukhov. Of these data, the data for the tests with not constant heat flux distribution along the tube have been corrected with the superposition method. The Petukhov correlation method does not account completely for the increase of the heat transfer coefficient in the entrance region of the tube. However, for the downstream region the correlation is successful. The 1624 reevaluated experimental points are correlated with a standard deviation of 7.0% for 2 <= l/d <= 316. (ERA citation 09:018928)