A Heat Balance Integral Method for Estimating Practical Solidification Parameters

A heat balance integral technique based on an enthalpy formulationof a metallurgical solidification problem is presented. Unlikethe majority of previous heat balance integral methods the newtechnique can analyse situations in which the phase change takesplace over a temperature range. This means that solidificationparameters of practical significance may be efficiently estimated.An application of the new technique is made to a problem ofbinary alloy solidification. The results obtained are comparedwith existing numerical models.