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Now showing items 21-30 of 44
Fracture mechanics analysis of slow crack growth in polyethylene
(Texas A&M University, 1997)
Slow crack growth in polyethylene is often the limiting factor in long-term service of plastic pipe or other structural applications. A new test method and analysis method was developed to study slow crack growth in ...
Comparison of heat transfer characteristics of axisymmetric and two dimensional reattachment jet nozzles to conventional jet impingement nozzles
(Texas A&M University, 1997)
The Radial Jet Reattachment (RJR) nozzle was developed over the past decade as a modification of the In-Line Jet (ILJ) nozzle in order to enhance the heat and mass transfer characteristics of the ILJ nozzle. This research ...
The Effect of Fan and Heat Sink Design on Heat Removal from Microprocessor Chips
(Texas A&M University, 1997)
Air flow and heat removal characteristics for fan/heat sink designs used to cool Pentium class processors were analyzed. Five designs were tested for fan speed, differential and static nozzle pressure, static fan pressure, ...
The Effect of Roughness on Aerosol Deposition in Tubes
(Texas A&M University, 1997)
Experimental measurements of simulated roughness within tubes and the subsequent aerosol penetration performance through these tubes were conducted for a aerosol particle size range of 5 nm to 20 nm and a flow rate range ...
The effects of spark ignition parameters on the lean burn limit of natural gas combustion in an internal combustion engine
(Texas A&M University, 1997)
A full factorial experiment was conducted to determine the effects of internal combustion engine ignition parameters on the air-fuel ratio (A/F) lean limit of combustion with compressed natural gas (CNG). Spark electrical ...
Development of a Simplified Model for Cooling and Dehumidifying Coils
(Texas A&M University, 1997)
Precise understanding of the cooling coil in air handler units is vital to assure the proper temperature and humidity in conditioned space while minimizing the associated costs of operating the air conditioning system. ...
Effects of electrode compression on the performance of a solid polymer electrolyte fuel cell
(Texas A&M University, 1997)
The effects of electrode compression on the performance of a polymer electrolyte fuel cell (PEFC) were investigated. Preliminary testing showed that considerable compression of the carbon cloth electrodes was provided by ...
Experimental verification of bifurcation in fluid bearings
(Texas A&M University, 1997)
The thesis presents the results of the experiments that were conducted on short and long fluid film bearings with a simple single disk rotor. The behavior of the journal was analyzed as function of the rotor system parameters ...
A Methodology for In-Situ Calibration of Steam Boiler Instrumentation
(Texas A&M University, 1997)
This thesis presents a broadly useful diagnostic methodology to engineers and plant managers for finding the in-situ operating characteristics of power plant boilers when metered data is either missing or obviously erroneous. ...
Development of Empirical Temperature and Humidity-Based Degraded-Condition Indicators for Low-Tonnage Air Conditioners
(Texas A&M University, 1997)
A split-system direct-expansion air conditioner was used to empirically determine temperature and return-air humidity indicators that could detect performance degradation resulting from degraded conditions. The air conditioner ...