Abstract
Time-averaged porosity profiles were measured in a two-dimensional bed with a circular jet and with a rectangular jet by use of a y-ray densitometer. A reglon of maximum porosity was found to exist at a finite length above the jet inlet in the case of the circular jet. This maximum moved up the bed with increasing jet velocity. For the rectangular jet the porosity profiles showed a behavior consistent with two-dimensional calculations. For example, near the jet inlet the concentration profiles were close to elliptical. This geometry can be considered as an idealized cross section of a gasifier. A detailed comparison to numerical solutions of hydrodynamic equations of change will be made in part 2. Jet penetrations for both jets were close to each other.
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