Engineering Commons^™

The Kinetics Of Volatile Lead Compound Formation During Simulated Hazardous Waste Incineration, Joel Thomas Shor

Doctoral Dissertations

Air pollution from fine metal-containing particles (and vapors) formed during hazardous waste incineration has attracted less attention than other incinerator emissions. Recently, however, metal pollution has become subject to more stringent regulations. The U.S. Environmental Protection Agency has announced limitations on the emissions of ten toxic metals. Pollution control systems that will effectively remove fine (submicron) metal-containing particles from flue gases are difficult to construct. Incinerators have not been designed or operated to minimize the formation of such particles. Industrial-scale incineration testing has produced anomalous results for air emissions of lead and other metals.

To gain a better fundamental understanding …

A Pc-Based Signal Validation System For Nuclear Power Plants, Ali Seyfettin Erbay

Masters Theses

The safe operation and efficient control of a nuclear power plant requires reliable information about the state of the process. Therefore the validity of sensors which measure the process variables is of great importance. Signal validation is the detection, isolation and characterization of faulty signals. Properly validated process signals are also beneficial from the standpoint of increased plant availability and reliability of operator actions.

In recent years, several methods have been developed for signal validation (SV). Some of these methods include generalized consistency checking (GCC) , process empirical modeling (PEM) for prediction, multi-dimensional process hypercube (PHC), univariate and multivariate autoregression …

Mechanical Impedance Methods For Vibration Simulation, Jeffrey Allen Gatscher

Masters Theses

Realistic laboratory simulation of a system's field vibration environment has been of major concern to design and test engineers for many years. The usual practice of basing vibration design and test specifications on an envelope of the equipment base acceleration levels experienced in the field environment has often resulted in excessive levels of overtesting. This results from the large differences between the mechanical impedance of the vehicle structure and that of a fully equalized vibration shaker. Mechanical impedance effects occur naturally in a field environment. Including such effects in a laboratory vibration environment achieves more realistic conditions of similitude. A …

Application Of A Generalized Quartic Equation Of State To Pure Polar Fluids, Yen-Liang Lin

Masters Theses

A generalized four-parameter quartic equation of state proposed by Shah (1992) has been extended to polar fluids. For the use the new generalized quartic equation of state for polar fluids, only four characteristic properties of the pure compound are required, critical temperature, critical volume, acentric factor, and dipole moment. For nonpolar fluids, the previous equation (Shah, 1992) is recovered and its superior performance with nonpolar fluids is retained.

A new set of coefficients for polar fluids in the quartic equation of state has been obtained from multiproperty regressions using various physical and thermodynamic experimental literature data for 30 pure compounds. …