DUC Energy Budget

Sarah Canniff, Brittany Huhmann, T. J. Pepping,

Elliot Rosenthal, and Dan ZernickowEECE 449, Spring 2010

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

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

Results: Natural Gas

Results: Electricity

Results: Hot Water

Results: Chilled Water

Results: Four-Streams

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

References