This problem was corrected by modifying the finite difference equations, for this specific application, to use donored enthalpy in the convective energy terms. The user must specify on input the junctions where this model is to be used. The user must change an existing MOD3.1 input deck only to invoke this model. This effect becomes important in long transients. The G factor has now been implemented in the code.
New input is required.
The user must change an existing MOD3.1 input deck only to invoke this model. The user specifies the horizontal bundle geometry on the left and right boundary condition data cards. The user must change an existing MOD3.1 input deck only to invoke this model. A new model for predicting CHF in horizontal tube bundles has been added to the code. The Folkin-Goldberg correlation is used.