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

Project Objectives Find total energy use, CO 2 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 Begin to understand the influence of outdoor temperatures and student use of the DUC on these daily, weekly, and seasonal trends

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 MMBTUs for comparative purposes Assumption: Zeros are real and included; “no data” was not included

Results: Natural Gas

Results: Electricity

Results: Hot Water

Results: Chilled Water

Results: Four-Streams

Summary and Conclusions Total energy (17,300 MMBTU), CO 2 (2,140,000 kg), and cost ($126,000) for one year Electricity is biggest source of energy consumed (36%), CO 2 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

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