The importance of thermal entrance effects in gas-cooled beam windows for radioisotope production targets

  • Steyn G
  • Stevens C
  • 3


    Mendeley users who have this article in their library.
  • 3


    Citations of this article.


The applicability of the Dittus-Boelter and other duct equations in estimating convection heat-transfer coefficients for beam windows used in radioisotope production targetry was investigated. Calculated predictions were compared with experimental measurements for fully-developed flow of helium in a round-duct geometry. It was found that calculations by means of the duct equations are unrealistic unless thermal entrance effects are taken into account.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free