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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 ...
Reducing Energy Costs in the Texas State Agencies: Conservation and Policy Options: Volume II – Final Report
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University, 1984)
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 ...
Testing and Economic Evaluation of a High Efficiency 10-ton Rooftop Air Conditioner
(2006-11-09)
In 1993, the U.S. Environmental Protection Agency initiated a project to design, build and demonstrate a high efficiency commercial rooftop air conditioning unit. The unit was designed by Hibberd Consulting of Westminster, ...
Energy Analysis and Energy Conservation Options for the Addition to Records Storage Building
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1986)
The energy use and peak load requirements of the addition to
Records Storage Building in Austin, Texas were analyzed using the
DOE 2.1B building energy simulation program. An analysis was made
for the building as specified ...
An Analysis of Efficiency Improvements in Residential Sized Heat Pumps and Central Air Conditioners
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1986)
This report summarizes: (1) the performance improvements
possible for central air conditioners and heat pumps using
conventional design improvements, (2) the development of a
methodology for estimating the seasonal ...
Energy Analysis and Energy Conservation Option for the Warehouse Facility at the Human Services Center Complex
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1986)
The energy use of the warehouse facility at the Human
Services Center Complex in Austin, Texas was analyzed using the
DOE-2.1B building energy simulation program. An analysis was made
for each building as specified in ...
Proposed Metering and Instrumentation Monitoring and Analysis Plan and Budget: Alamo Community College District
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University, 2002)
The purpose of this overview is to outline the metering points that will be monitored by the Energy Systems Laboratory (ESL). At three of the campuses, Alamo Community College District (ACCD) has a central energy management ...
An Evaluation of Improper Refrigerant Charge on the Performance of a Split System Air Conditioner with a Thermal Expansion Valve
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1989)
The effect of the improper charging on steady state and
cyclic performance (capacity, EER, power consumption, SEER,
and coefficient of degradation) of a residential air
conditioner which utilized a thermal expansion ...
Determination of the Transient Response Characteristics of the Air-Source Heat Pump During the Reverse Cycle Defrost
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M UniversityDepartment of Mechanical Engineering, Texas A&M University, 1988)
The objectives of this research were to: (1)
characterize the reverse cycle defrost of the air-to-air
heat pump and (2) examine the effect of different expansion
devices on the performance of the heat pump during ...