Date of Award


Degree Name

Master of Science


Mechanical Engineering

First Advisor

Mathias, James


The energy consumption of the heating and cooling coils of the air handling units of an educational building with multiple laboratories has been evaluated and suitable energy recovery methods were assessed in an attempt to reuse the energy lost in the exhaust air stream and promote energy conservation while complying with the current building codes. HVAC system of Life Sciences II (LS II) building is a constant air volume (CAV), 100% outside air (OA) system. Hourly surface temperature data for southern Illinois was used to determine energy consumption from current system and glycol run-around loop heat recovery system was designed for air handling unit (AHU) 1 and annual energy savings of 17.8% were estimated with a payback period of 5.1 years. Return air heat recovery system was designed for AHU 3. Annual energy savings estimated for AHU 3 are 17.89% with a payback period of 6 months. Both Glycol run around loop heat recovery system and return air system exhibit significant energy saving potential with a quick payback, making them good choices for retrofitting the educational facility.




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