CS-22 Enhanced Methods in Xist 8 for Gravity-controlled Shellside Condensation

J. M. McNaught

This report documents the revised methods in Xist 8 for predicting the gravity-controlled condensate heat transfer coefficient on horizontal tube bundles. Reformulation of the relevant equations using the local condensate Reynolds number on an element of the tube bundle facilitates exploitation of the Xist 3D incremental structure more effectively than was previously possible, giving improved accuracy and reliability. Comparisons of Xist 7.3.2 and 8.0.1 with HTRI research data provide validation of the revised methods.