DOBIE TWENTY 21
Student Living Spaces UT Campus, Austin.
Control Upgrade and HVAC Optimization Case Study
• Electricity savings: 900,600 kWh/yr
• Gas savings: 2,745 MMBtu/yr
PROJECT FACTS AND STATS
•247,372 square feet
•27-story student living units with retail spaces on lower floors
•2 chillers and 2 steam boilers
•Pneumatic controls
•24 AHUs (SDCV)
•EUI: 145 kBtu/sqft-yr
​
SCOPE OF WORK
•Complete control upgrade for central plant and AHUs from pneumatic to DDC
•Installed VFDs for all AHUs (224 hp), chilled water, and condenser water pumps (90 hp)
•Optimize staging sequence for chillers, chilled water pumps, and cooling tower fans
•Optimize hot water temperature setpoint based on weather and load conditions
•AHU commissioning and functional tests
•AHU control optimization such as night setback, single-zone units fan speed optimization, supply air temperature optimization, etc.
•Implement/optimize equipment run schedules