Browsing ESL Theses and Dissertations by Title
Now showing items 51-70 of 72
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(Texas A&M University, 2004-09-30)Currently, four areas of Texas have been designated by the United States Environmental Protection Agency (EPA) as non-attainment areas because they exceeded the national one-hour ground-level ozone standard of 0.12 ...
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(2008-01-16)Measured energy savings promote and sustain energy conservation retrofits by verifying the success of retrofits, determining pay-back schedules, guiding the selection of future retrofits and identifying opportunities for ...
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(Texas A&M University, 2006-04-12)Typical energy audits are sufficiently expensive and time-consuming that many owners and managers of buildings are not willing to invest the time and money required for a full audit. This dissertation provides a methodology ...
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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. ...
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(1990-08)An experimental and analytical study concerned with the off-design refrigerant charging of air conditioners is presented. A series of experiments were conducted to characterize the effects of refrigerant charge and type ...
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(Texas A&M University, 1992-11)This report presents results from degraded performance measurements of a residential air conditioning system operating under reduced evaporator air flow. Experiments were conducted using a R-22 three-ton split-type cooling ...
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(1994-12)Non-linear finite element models were developed to simulate transient heat and mass transfer in the soil surrounding the ground heat exchangers of ground-coupled heat pumps (GCHPs) operating in the cooling mode. Parametric ...
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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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(2008-06-10)The objective of this study is to investigate the reasons why the performance of mechanical systems degrades over time after commissioning and to recommend intervals at which testing should be performed to maintain the ...
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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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(2007-12)A distributed parameter approach for dynamic modeling of heat exchangers and using it to obtain low order models have been presented in this report. The finite control volume (FCV) approach accurately captures the distributed ...
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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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(Energy Systems Laboratory, 2001-05)The Short-term Monitoring Long-term Prediction (SMLP) method is a new method for baselining, predicting and evaluating the energy performance of commercial and institutional buildings when only short-term data are available. ...
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(Energy Systems Lab, 2004-05)
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(1992-08)The influence of heat recovery on the energy impact of air infiltration, and the systematic error due to the steady-state method were studied both experimentally and theoretically. Two methodologies suitable for measurement ...
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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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(2020-12)Occupant behavior has a significant influence on energy consumption in buildings because HVAC, lighting, equipment, and ventilation operations are often tied to occupancy- based controls. However, currently, the traditional ...
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(1989-12)An experimental and analytical study concerned with the transient performance of heat pumps is presented. A series of tests were performed to study and characterize the transient sensible and dehumidification performance ...
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(2018-02-06)