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A Modified Analytical Method for Simulating Cyclic Operation of Vertical U-Tube Ground-Coupled Heat Pumps
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
A modified analytical model is presented which discretizes the ground-coupled heat exchanger of a ground-coupled heat pump and utilized a separate cylindrical source solution for each element. First law expressions are ...
Two-Phase Flow of Two HFC Refrigerant Mixtures Through Short Tube Orifices, Draft Final Report
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
The present study presents data for flow of two refrigerant mixtures through short tube orifices. The two mixtures were R3211251134a (23%/25%/52% on a mass percentage basis) and R321125 (50%/50%). The following presents ...
Predictive Maintenance Programs (PMP’s) in Small HVAC Applications: Analysis of Available Products and Technology
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
Maintenance of HVAC&R systems and scheduled replacement of components to avoid costly down time, degraded comfort conditions, or health hazards is not new. In fact, designs have not changed dramatically in many years. ...
Instructions for "The Great Energy Predictor Shootout II: Measuring Retrofit Energy Savings"
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
Based on the overwhelming response to the first Building Energy Predictor Shootout a second predictor Shootout has been developed to again compare how well different empirical models predict building energy data from several ...
Preliminary Study of O&M Opportunities at the University of Texas Medical Branch at Galveston, Submitted to The Energy Management and Operations Department at UTMB Galveston
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
At the request of the Energy Management and Operations Department at the University of Texas Medical Branch at Galveston, the Energy Systems Laboratory at the Texas A&M University performed the preliminary study of O&M ...
Cool Storage Applications in the Texas LoanSTAR Program: Overview and Preliminary Results
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
Cool Storage Systems (CSS) are becoming a popular demand side management tool for utilities because that helps them avoid costly plant expansions and reduces summer-time peak electricity demand. This paper presents an ...
Texas LoanSTAR Monitoring and Analysis Program: Monitoring Equipment Installation Manual (October 1994)
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
The Texas LoanSTAR (Loans to Save Taxes and Resources) Program is a $98.6 million revolving loan fund to finance energy conservation retrofits in Texas government buildings. The loans are repaid through energy cost savings ...
Thermal Energy Measurement with Tangential Paddlewheel Flow Meters: Summary of Experimental Results and in-situ Diagnostics
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
Recently third-party financing has become a popular mechanism for funding energy conservation retrofits in commercial/institutional buildings. Although many successful projects have been heralded by the press quite a few ...
An Overview of Measured Energy Retrofit Savings Methodologies Developed in the Texas LoanSTAR Program
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
Development of methodologies to determine energy retrofit savings in commercial buildings (institutional buildings, schools, hospitals, offices, county and state buildings,...) has been the object of active research during ...
Bias in Predicting Annual Energy Use in Commercial Buildings with Regression Models Developed from Short Data Sets
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1994)
An empirical or regression modeling approach is simple to develop and easy to use compared to use of detailed hourly simulations. Therefore, regression analysis has become a widely used tool in the determination of annual ...