This paper explores the physical mechanisms responsible for experimental observations that led to the definition of ‘‘photo-induced hydrogen outgassing of glass’’. Doped borosilicate glass samples were placed inside an evacuated silica tube and heated in a furnace or by an incandescent lamp. It was observed that hydrogen release from the glass sample was faster and stronger when heated by an in...

This paper presents a computational model for predicting the location at which the glass fiber solidifies during a highspeed drawing process. Although modeling of the optic fiber drawing process has been of interest for the past two decades, traditional fiber drawing process uses small diameter preforms and low draw speeds, where the glass usually solidifies and turns into fiber inside the furn...

The glass melting process starts from a granular mixture of natural and synthetic raw materials (the so-called batch) and yields a thermally and chemically homogeneous melt made available at a well defined temperature level. The consecutive steps of glass fabrication (forming, annealing, etc.) are not within the scope of interest of this paper. Figure 1 illustrates how a continuously working gl...

Using wastes as starting raw materials is a common method to reduce the production costs and the environmental pollution problems arising from such wastes. In this study the production and crystallization behavior of an iron rich glass prepared by iron and steel making wastes has been investigated. The raw materials used, were the blast furnace slag, the blast furnace dust, converter slag and s...

We address the short-term production planning and scheduling problem coming from the glass container industry. A furnace melts the glass that is distributed to a set of parallel molding machines. Both furnace and machine idleness are not allowed. The resulting multi-machine multi-item continuous setup lotsizing problem with a common resource has sequence-dependent setup times and costs. Product...

Glassy materials simulating vitrified high-Na/Fe (Sludge Batch 2 – SB2) and high-Na/Fe/Al (Sludge Batch 4 – SB4) Savannah River Site high level wastes (HLW) were produced in a resistive furnace and 236 and 418 mm inner diameter cold crucibles. The effect of waste loading (WL) and glass structural factors (degree of connectedness of glass network, metal oxides to boron oxide ratios) on chemical ...

This paper describes a CBR application in manufacturing industry, a domain where CBR has by and large proved its applicability and success. The paper details a thorough understanding of the field of fused cast manufacturing basically seen from the perspective of glass furnace, where quality of glass produced is straightaway related to the refractory blocks used in furnace linings. The applicabi...

A new high-temperature XRD instrument, utilizing multilayer optics and a custom furnace, has been developed to maximize sensitivity and minimize problems associated with sample displacement. This paper will describe the technical specifications of the new instrument, and will present temperature calibration with standard reference materials and measurement of phase evolution in an industrial gl...

This paper presents a study of the flow and thermal structures in the molten glass bath of a typical glass melting furnace with a throat but without air bubblers or electric boosting. Different separate effects on the flow structure of the glass melt are simulated, but only the glass melt is considered. The net heat flux distribution is imposed at the combustion space/glass melt interface, and ...

This research has produced foamed glass-ceramics from coal fired power station furnace bottom ash (FBA) and soda-lime-silica glass. The as-received FBA was wet milled with different additions of resultant slurry dried formed into a powder. powder pressed sintered at range temperatures fluxing agent (sodium tetraborate decahydrate), bubble stabilising additive (tri-sodium phosphate) bloating (ca...