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Potential Operation and Maintenance (O&M) Savings in the Basic Science Building at UTMB
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This report presents the results of a study of the potential energy savings due to optimizing the Heating, Ventilation and Air Conditioning (HVAC) operation schedule in the Basic Science Building at University of Texas Medical Branch (UTMB), Galveston, Texas.
DescriptionAn optimized HVAC operation schedule has been developed using a simplified HVAC systems model analysis along with the LoanSTAR measured hourly energy use data and EMCS measured operating parameters at UTMB. An annual savings of $156,000 can be realized by implementing this optimized schedule in the EMCS control program. The majority of the energy savings are due to the reduction in chilled water consumption and a substantial reduction of reheat. Our analysis indicates that the indoor comfort level will not be degraded by this measure. These measures can reduce the building's current annual energy costs by $156,000, or 23%. Subsequently the suggested O&M measure, i.e. raising cold deck temperature from 59 °F to 54 °F was implemented on July 2,1993. A simple regression analysis of energy use data has confirmed that, as of October 25, 1993, Basic Science Building has saved $58,000 by way of reduced chilled water and steam consumption.
Liu, M.; Athar, A.; Claridge, D. E.; Reddy, T. A.; Haberl, J. S. (1993). Potential Operation and Maintenance (O&M) Savings in the Basic Science Building at UTMB. Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University; Department of Mechanical Engineering, Texas A&M University. Available electronically from