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DUC Energy Budget

This project analyzes total energy use, CO2 emissions, and costs associated with natural gas, electricity, hot water, and chilled water in the DUC over one year. Key objectives include understanding energy consumption by HVAC and non-HVAC systems, identifying trends in relation to outdoor temperatures, and evaluating daily, weekly, and seasonal patterns. Results indicate that total energy consumption reached 17,300 MMBTU, with electricity as the largest source. The study offers insights for energy reduction strategies and highlights the significant impact of peak usage during meal times.

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DUC Energy Budget

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  1. DUC Energy Budget Sarah Canniff, Brittany Huhmann, T. J. Pepping, Elliot Rosenthal, and Dan ZernickowEECE 449, Spring 2010

  2. Project Objectives • Find total energy use, CO2 emissions, and cost for natural gas, electricity, hot water, and chilled water in the DUC for one year • Identify the portion of the DUC’s total energy use that goes to individual components of the HVAC system and the portion that goes to non-HVAC uses • Identify daily, weekly, and seasonal trends in the above parameters • Identify trends between outdoor temperatures and student use of the DUC on these daily, weekly, and seasonal trends

  3. Approach and Methodology • Data from Metasys for 5:00 PM April 16, 2009 to 5:00 PM April 16, 2010 • electricity, natural gas, hot water, chilled water • supply fans, relief fans, and heat recovery fans for the 3 AHUs • pumps for hot and chilled water • outdoor air temperature • All energy data converted to MBTUs for comparative purposes • Assumption: Zeros are real and included; “no data” was not included

  4. Results: Natural Gas

  5. Results: Electricity

  6. Results: Hot Water

  7. Results: Chilled Water

  8. Results: Four-Streams

  9. Summary and Conclusions • Total energy (17,300 MMBTU), CO2 (2,140,000 kg), and cost ($126,000) for one year • Electricity is biggest source of energy consumed (36%), CO2 emitted (67%), and cost (52%) • HVAC electricity is 29% of total electricity consumption • Two peaks daily in energy consumption corresponding to lunch and dinner rush • Lower energy consumption on weekends vs. weekdays & during breaks (summer, Thanksgiving, winter, spring) • Recommendations for reductions

  10. References

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