Energy Systems Laboratory

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Texas A&M University's Energy Systems Laboratory (ESL), established in 1939, is a division of the Texas Engineering Experiment Station. Affiliated with the Department of Mechanical Engineering and the College of Architecture, ESL develops and transfers energy efficiency technology.

Metering and modeling energy use in buildings
Optimization of heating, ventilation, and cooling systems, known as Continuous Commissioning
Modeling and analysis of data collected, including calibrated simulation and measurement and verification of photovoltaic solar installations

To view a complete listing of ESL publications in the Catalog, click HERE. Some of these publications are not available at this site due to copyright restrictions.

For information on any publications, please contact the ESL Digital Library Manager, Sherrie Hughes, at sherriehughes@tees.tamus.edu.

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An Analysis of Low Cost, Energy Efficient, Housing for Low-income Residents of How and Humid Climates

Kootin-Sanwu, Victor (Energy Systems Laboratory, May 2004)

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Abstract:

The purpose of this research is to develop methods that will enable the reduction of owning and operating costs of low-income housing in the hot-humid climates of the U. S. The objectives include investigating various scenarios that will enable the implementation of cost-effective construction of low-income housing using volunteer labor. The research uses a case study approach where a base-line energy use is established using a comparative Princeton Score Keeping Method (PRISM) analysis and measurements from a case study house. A prototype house is then simulated with the DOE-2 building simulation program, and the energy savings calculated by comparing simulated energy and water conservation design measures (E&WCDMs) with the calibrated baseline energy simulation. The cost and maintenance of the house are analyzed with the real cost of construction of a case study house in Bryan/College Station, Texas.

URI:

http://handle.tamu.edu/1969.1/85753

Files in this item: 1

Energy Efficiency/Renewable Energy Impact in the Texas Emissions Reduction Plan (TERP), Preliminary Report: Integrated NOx Emissions Savings from EE/RE Programs Statewide

Degelman, L.; Mukhopadhyay, J.; McKelvey, K.; Montgomery, C.; Baltazar-Cervantes, J. C.; Liu, Z.; Gilman, D.; Culp, C.; Yazdani, B.; Haberl, J. S. (August 29, 2008)

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Abstract:

The Energy Systems Laboratory (ESL), at the Texas Engineering Experiment Station of the Texas A&M University System, in fulfillment of its responsibilities under Texas Health and Safety Code Ann. 388.003 (e), Vernon Supp. 2002, submits this sixth annual report, ‘Energy Efficiency/Renewable Energy (EE/RE) Impact in the Texas Emissions Reduction Plan (Preliminary Report)’ to the Texas Commission on Environmental Quality. In this preliminary report the NOx emissions savings from the energy-efficiency programs from multiple Texas State Agencies working under Senate Bill 5 and Senate Bill 7 in a uniform format to allow the TECQ to consider the combined savings for Texas’ State Implementation Plan (SIP) planning purposes. This required that the analysis should include the cumulative savings estimates from all projects projected through 2020 for both the annual and Ozone Season Day (OSD) NOx reductions. The NOx emissions reduction from all these programs were calculated using estimated emissions factors for 2007 from the US Environmental Protection Agency (US EPA) eGRID database, which had been specially prepared for this purpose. In 2007 the cumulative total annual electricity savings from all programs is 12,591,561 MWh/yr (8,326 tons-NOx/year). The total cumulative OSD electricity savings from all programs is 37,421 MWh/day, which would be a 1,559 MW average hourly load reduction during the OSD period (25.05 tons-NOx/day). By 2013 the total cumulative annual electricity savings from will be 28,802,074 MWh/year (18,723 tons-NOx/year). The total cumulative OSD electricity savings from all programs will be 88,560 MWh/day, which would be 3,690 MW average hourly load reduction during the OSD period (58.47 tons-NOx/day).

URI:

http://handle.tamu.edu/1969.1/85751

Files in this item: 1

Engineering Design, Construction, Operation and Analysis of the 2007 Texas A&M University Solar Decathlon House

Ramirez, E. J. (Energy Systems Laboratory, May 2008)

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Abstract:	This report presents the design, construction, and operation of a 100% solar-powered house from an engineering perspective. This includes energy simulation results, selection of systems, design of systems, assembly of systems, integration between architectural and engineering design, transportation of the house to Washington D.C., and a review of the actual performance of the house during the 2007 Solar Decathlon. The house was designed and constructed in Bryan-College Station, Texas, from January 2006 to September 2007. It was constructed at the Texas A&M University (TAMU) facilities and it was then transported to the National Mall in Washington, D.C. for the U.S. Department of Energy’s Solar Decathlon which took place from October 3 to October 23, 2007. A full-description of this project is presented along with the TAMU team’s strategy for the competition contests. Finally, an analysis of the final outcome is offered with recommendations for future events
Description:	A Final Examination Report by Eduardo J. Ramirez, submitted in partial fulfillment for the degree of Master of Engineering.
URI:	http://handle.tamu.edu1969.1/85723

Files in this item: 1

Analysis of Emissions Calculators for a National Center of Excellence on Displaced Emissions Reductions (CEDER)

Im, P.; Haberl, J. S.; Culp, C.; Yazdani, B. (July 18, 2008)

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Abstract:	In August 2004, the Environmental Protection Agency (EPA) issued guidance on quantifying the air emissions benefits from electric sector energy efficiency and renewable energy. Because there was no clear best strategy, the EPA’s guidance provided a framework and the basic requirements needed to demonstrate air quality improvements or emissions reductions with adequate certainty to be incorporated into a State Implementation Plan (SIP) for achieving or maintaining National ambient Air Quality Standards (NAAQS). The Energy Systems Laboratory, with guidance from both the US EPA and the Texas Commission on Environmental Quality (TCEQ), developed the first a comprehensive engineering toolkit and database that satisfies the EPA guidance. The value of this unique tool was demonstrated in 2005 when the ESL, at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies participating in the Texas Emissions Reduction Plan (TERP). Building on this expertise, the US EPA has established a National Center of Excellence on Displaced Emissions Reductions (CEDER) at the Energy Systems Laboratory to research and gather the state-of-the-art air pollution quantification techniques for Energy Efficiency / Renewable Energy (EE/RE) projects; provide technical support and customized analysis for state and local agencies seeking to estimate the environmental benefits from clean energy policies and programs; and document how a user-friendly tool, based on e2Calc, can be used by clients to fulfill their needs to quantify emissions reductions from energy efficiency and renewable energy measures.
Description:	The Energy Systems Laboratory, in fulfillment of its responsibilities, submits this annual report, “Analysis of Emissions Calculators for a National Center of Excellence on Displaced Emissions Reductions (CEDER),”to the United State Environmental Protection Agency.
URI:	http://handle.tamu.edu1969.1/85722

Files in this item: 1

Test for Modeling Windows in DOE 2.1E for Comparing the Window Library with the Shading Coefficient Method for a Single-Family Residence in Texas

Kim, S.; Haberl, J. S. (July 18, 2008)

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Abstract:

This study examines the difference of the window simulation test between the Shading Coefficient (SC) and the Window Library (WL) Methods on DOE 2.1E of the 2000 IECC (International Energy Conservation Code) for single-family residences in Texas. The window simulation tests are performed using single-pane, double-pane, and low-e glass on two standard DOE 2.1E single-family house models: 1) the model which has the R-value for wall, roof and floor according to 2000 IECC (Quick Wall), and 2) the model which has the real wood frame wall and has the same R-value as the first one (Thermal Wall). The analysis showed different results according to the types of the glass, simulation method (Shading Coefficient or Window Library), and types of wall (quick wall and thermal wall). The saving of daily peak heating (kBtu/day) from single-pane to low-e glass on thermal mass and quick wall shows the most variation.

URI:

http://handle.tamu.edu1969.1/85721

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