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Now showing items 51-60 of 147
The effect of preceding elbows on aerosol deposition in subsequent flow elements
(Texas A&M University, 2002)
The wall losses in tubing elements due to the secondary flows established in an elbow were experimentally determined. Monodisperse, liquid aerosol particles of sizes 5-20 []m were used to perform the tests. The tests were ...
A neuro-computational approach to chiller fault identification and isolation
(Texas A&M University, 2002)
This thesis develops a steady state model of a reciprocating, single-stage, vapor compression chiller, based on thermodynamic principles and the ASHRAE HVAC-1 primary toolkit model, to predict and diagnose the behavior of ...
A slit impactor utilizing a transpirated impaction surface for collection of bioaerosols
(Texas A&M University, 2001)
In recent years, there has been a growing concern of possible attacks against the United States by other countries using biological weapons. In response to this concern, the U.S. government has increased its defensive ...
Measurement and analysis of gas turbine blade endwall heat transfer
(Texas A&M University, 2001)
For many years it has been recognized that the design of an efficient high pressure turbine with adequate component life is crucial to the success of any gas turbine engine project. Inherent in the design process is the ...
Evaluation of Fin Staging Methods for Minimizing Coil Frost Accumulation
(Texas A&M University, 2001)
Frost formation on heat pump evaporators is a source of degradation in the performance of heat pumps during heating mode operation. This research sought to determine whether staged fins on outdoor evaporators could slow ...
A model for feed forward control of chatter in end milling
(Texas A&M University, 2002)
High productivity while maintaining the quality of products is one of the main goals of manufacturers. Even though the machining parameters such as spindle speed, feed rate and depth of cuts can be increased in order to ...
Recovery of signals measured by inaccurate sensors
(Texas A&M University, 2001)
The main problem investigated in this research is the recovery of signals measured by inaccurate sensors, which normally has a tendency of distorting signal information, both in the time domain and frequency domain. A ...
Design of an ambient aerosol sampling system for high and medium speed applications
(Texas A&M University, 2002)
Two ambient sampling systems were designed and tested for high speed sampling application for a wind speed range of 4.47 m/s to 26.82 m/s. These systems will be used as inlets for sampling of bioaerosol from air. These ...
Force characterization of flexible couplings for rotordynamic simulation
(Texas A&M University, 2002)
Couplings between rotating machines are typically divided into two categories: rigid and flexible. Flexible couplings allow misalignment of the two shafts but introduce potential rotordynamic instabilities to the system. ...
The development of a solid-state laser-based sensor for absorption detection of OH
(Texas A&M University, 2002)
A solid-state laser-based sensor for the detection of the OH molecule is described and demonstrated. Novel technology is implemented to produce a compact and portable solid-state sensor for OH absorption measurement. An ...