Document Type

Thesis

Degree

Master of Science (MS)

Major/Program

Mechanical Engineering

First Advisor's Name

Yiding Cao

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Georgio Tachiev

Third Advisor's Name

Rajiv Srivastava

Date of Defense

11-15-2004

Abstract

The U.S. Department of Energy (DOE) needs a design basis to properly design a PJM and ventilation systems for the Waste Treatment Plant vessels. In order to meet DOE's needs for proper ventilation and PJM design technologies, Florida International University's Hemispheric Center for Environmental Technology (FIU-HCET) has studied the properties for gas holdup in selected non Newtonian fluids with physicochemical properties comparable to nuclear waste.

The primary purpose of this research was to study the holdup properties of selected non - Newtonian simulants and quantify the level of gas holdup in selected simulants using continuous argon injection in five gallons vessel. Gas holdup tests involved the injection of gas bubbles in simulant waste in scaled prototypic vessels. The holdup was measured as a function of injection rate in the vessel. Tests were performed with both Laponite, Clay 12%, Clay 27% and Qard 13.5. This work showed that the percentage of holdup was about 3% for all simulants despite the significant differences in rheology.

Identifier

Fl13101500

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