Because of the fuel crisis and problems associated with thermal
pollution there is new impetus and urgency for developing more
efficient energy conversion systems for power generation. A preliminary
analysis was undertaken to determine the potential of staged
Rankine cycle systems for substantially higher efficiency. It was
necessary to optimize...
A simulation method using a hybrid computer is developed in
this dissertation to enhance the study of wind-driven ocean circulation.
The simulation is based on the mathematical model developed by
Ekman. Pure digital simulation is not economical due to excessive
computer time required for the solution of the partial differential...
Flat, laminar, premixed hydrocarbon-air flames were stabilized
on a porous-plate burner. In addition to temperature profiles,
concentration profiles were measured for methane, ethane, ethylene,
propane, acetylene, propylene, carbon monoxide, carbon dioxide and
oxides of nitrogen. Dead space thickness, luminous flame zone
thickness and hydrocarbon disappearance point responses were also
This research involves a numerical study of the
hydrodynamics of gas fluidized beds. We use the continuum
model, treating both gas and particles as
interpenetrating continua. The motion of gas and
particles is strongly coupled by the interactions between
them. For simplicity, we only consider drag forces.
We use MacCormack's...
This study evaluates the feasibility of retrofitting a rotary
dryer to a hog fuel boiler, using the boiler exhaust gases as the
Two simulation models were developed. As substantiated by experimental
measurement of existing boiler/dryer systems, each model
accurately predicts system performance given site-specific parameters
such as boiler...
This thesis describes the analysis and comparison of Folded Source-Coupled
Logic (FSCL) with standard static CMOS, cascode voltage-switch logic and differential
split-level logic gates. The advantages of FSCL are low switching noise and
high operating speed. The effect of voltage and device scaling on these topologies is
evaluated in terms...
The objective of this thesis is to design a high speed digital FIR filter. The inputs of the
system come from a Delta-Sigma modulator. This FIR filter takes 1024 inputs,
multiplies them with their coefficients and adds the results. The main design task is to
take the input data, which...
This experiment is concerned with sampling submicrometer
particles in near sonic and supersonic flows.
The study employed a high volume condensation aerosol
generator to produce stearic acid particles having a
geometric mean diameter of 0.8 μm and a geometric
standard deviation of 1.28. The aerosol was diluted
with dry air...
Coal continues to be burned by direct combustion in packed or moving bed in
small size domestic furnaces, medium size industrial furnaces, as well as small power
stations. Recent stringent restrictions on exhaust emissions call for a better
understanding of the process of combustion of coal in beds.