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A numerical study of compressible flow in labyrinth seals with rub grooves
(Texas A&M University, 1997)
A labyrinth sea] uses a series of knife blades and cavities to create a high frictional flow path that turns a pressure potential into kinetic energy, which is then dissipated as heat. An existing numerical model is extended ...
An Improved Multipyranometer Array for the Measurement of Direct and Diffuse Solar Radiation
(Texas A&M University, 1997)
This thesis describes the development of an improved multipyranometer array (NDA) for the continuous remote measurement of direct and diff-use solar radiation. The NWA described in this thesis is an improvement over ...
Simplified Thermoeconomic Approach to Cost Allocation in Acombined Cycle Cogeneration and District Energy System
(Texas A&M University, 1997)
Not available
Adaptive optimization of a lead compensator based upon input command frequency during operations of X-Y positioning table
(Texas A&M University, 1997)
The premise for this research is a desire to improve the performance of systems that have complex command inputs. For such systems, a fixed controller may not provide the necessary means to optimize the system's performance. ...
Vapor Pressure measurements for dichlorosilane
(Texas A&M University, 1997)
In the processing of silicon-based materials, such as those used for electronic and photovoltaic materials, one of the key initial components is dichlorosilane. Dichlorosilane is often used in mixtures that include other ...
Rotordynamic evaluation of a roughened-land hybrid bearing
(Texas A&M University, 1997)
Hybrid bearings (combinations of hydrostatic and hydrodynamic bearings) represent an attractive alternative to ball bearings for use in high-speed cryogenic turbopumps. However, the internally-developed cross-coupled forces ...
Flow visualization and leakage measurements of worn labyrinth seals
(Texas A&M University, 1997)
A large-scale flow visualization test facility is used to conduct an experimental investigation into the leakage resistance and flow characteristics of worn labyrinth seals. Wear in labyrinth seals is a consequence of ...
Calculation of rotational power losses in eight pole radial magnetic bearings
(Texas A&M University, 1997)
The need for low-loss high speed bearings in rotating machinery invites the use of active control magnetic bearings. The present study investigates the theoretical power losses of these bearings associated with shaft ...
Three dimensional thermohydrodynamic analysis of multi-lobed bearings
(Texas A&M University, 1997)
An approach for three dimensional Therinohydrodyiiamic analysis of multi-lobed journal bearings is presented. The generalized Reynolds equation solution yields the Dressure distribution in the axial and circumferential ...
Design for manufacturability: quantitative measures for design evaluation
(Texas A&M University, 1997)
In a design for manufacturing (DFM) approach, the designer has to consider the interactions between the various parameters in the design and the ease with which it can be manufactured, very early in the design process. ...