Numerical Models of Waste Glass Models Part I Lumped Parameter Modeling of DWPF

Defense Waste Processing Facility melter production data from three waste batches were analyzed using a lumped parameter approach which separates effects of melter feed, heater temperature, and power on melt rate under various modes of operation. A detailed distribution of power inputs and heat consumption pathways, as provided by the lumped parameter model, evaluated possible causes of melt rate reduction and other operational data. Theoretical aspects of the steady state analysis, as well as transient analysis, are presented.The lumped model complements the more detailed multi-dimensional computational models by providing boundary conditions for such models, and is the only practical way of predicting transients