Mathematical Model of Cold Cap???Preliminary One-Dimensional Model Development

Pokorny, Richard ; Hrma, Pavel R.

关键词: GLASS;    HEAT FLUX;    MATHEMATICAL MODELS;    MELTING;    PROCESSING;    SENSITIVITY;    SIMULATION;    THICKNESS;    VELOCITY Mathematical Model;    Cold Cap;    melting;    waste glass;   

DOI  :  10.2172/1012879
RP-ID  :  PNNL-20278
PID  :  OSTI ID: 1012879
Others  :  Other: EY7144147
Others  :  TRN: US201111%%396

美国|英语

来源: SciTech Connect

【 摘 要 】

The ultimate goal of batch-melting studies, laboratory-scale, large-scale, or mathematical modeling is to increase the rate of glass processing in an energy-efficient manner. Mathematical models are not merely an intermediate step between laboratory-scale and large-scale studies, but are also an important tool for assessing the responses of melters to vast combinations of process parameters. In the simplest melting situation considered in this study, a cold cap of uniform thickness rests on a pool of molten glass from which it receives a steady uniform heat flux. Thus, as the feed-to-glass conversion proceeds, the temperature, velocity, and extent of feed reactions are functions of the position along the vertical coordinate, and these functions do not vary with time. This model is used for the sensitivity analyses on the effects of key parameters on the cold-cap behavior.