Browsing ESL Theses and Dissertations by Issue Date
Now showing items 21-40 of 71
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(Texas A&M University, 1995-05)This dissertation develops Fourier series and Artificial Neural Network (ANN) approaches to model hourly energy use in commercial buildings and illustrates application to data-screening. The procedure for modeling hourly ...
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(Texas A&M University, 1995-08)The present work is concerned with developing a discretized analytical model to investigate the effect of a backfill on the performance of a vertical U-tube ground-coupled heat pump. This work involves the development ...
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(Texas A&M University, 1995-08)This report describes an investigation of energy use at various LoanSTAR sites. The effects of installing Energy Management Control Systems (EMCS) on electricity consumption was studied at four LoanSTAR sites: Stroman ...
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(Texas A&M University, 1995-12)The effects of hydrophobic coatings on the dropwise condensation process for a flat horizontal copper plate held at a temperature much lower than the surrounding air was investigated. Extensive qualitative and quantitative ...
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(Texas A&M University, 1995-12)Particle deposition in contraction fittings with half-angles of 12 degrees, 45 degrees, and 90 degrees; expansion fittings with half-angles of 3 degrees, 6 degrees, 12 degrees, 45 degrees, and 90 degrees; and ...
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(Texas A&M University, 1996-05)The heat transfer and the freezing process of condensate droplets resting on a cold metal plate have been studied both experimentally and numerically. The experimental part of the investigation dealt with the measurements ...
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(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 ...
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(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. ...
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(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 ...
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(1997-05)This thesis proposes and validates a simplified model appropriate for parameter identification and evaluates several different inverse parameter identification schemes suitable for use when heating and cooling data from a ...
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(Texas A&M University, 1998)Indices are an important tool used to increase the accuracy and efficiency of the energy audit process. This thesis describes methods for using annual, monthly, daily, and hourly indices to improve current energy auditing ...
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(Energy Systems Laboratory (http://esl.tamu.edu), 1998-12)The measured energy savings from retrofits in buildings in the Texas LoanSTAR program are determined as the difference between the energy consumption predicted by a baseline model and the measured energy consumption ...
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(Texas A&M University, 1999)The development of the energy services industry and the implementation of energy savings retrofits by energy services companies has increased the focus on the performance of energy saving retrofits. Energy savings measurement, ...
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(Texas A&M University, 1999-05)This dissertation provides a simple yet powerful approach, the fully layered inverse bin method, to baseline hourly energy use in commercial buildings and illustrates the application through carefully ...
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(Texas A&M University, 1999-08)Proportional and Integral (PI) controllers are used widely in HVAC applications. It is necessary to choose suitable values for PI gains for PI control of the heating and cooling coils in buildings. Consequently, suitable ...
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(Texas A&M University, 1999-12)Energy efficient glazing is necessary to reduce heat gains or losses that contribute to the high-energy use of buildings. However, high-rise commercial buildings that use energy efficient glazing are still consumptive. ...
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(Texas A&M University, 1999-12)This record of study takes a firsthand look at corporate research and development efforts to improve the damage tolerance of two unique composite materials used in high performance aerospace applications. The professional ...
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(Texas A&M University, 2000)To define a single technique that can be reliably used for evaluation of missing data in time series of weather and building energy use data is a complex task. This thesis evaluates the application of spline and Fourier ...
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(Texas A&M University, 2000-05)The goal of this study is to develop and validate a computerized model for an energy efficient fenestration system that can easily be incorporated into the architectural design process. This model is for the thermal ...
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(Energy Systems Laboratory, 2000-08)Single-phase flow of refrigerants R-22, R-13a, and R-41a through flexible short tube orifices with three different geometries and a range in upstream operating conditions was modeling using the finite element method, FEM. ...