1. Introduction
Advanced energy recovery heat pump for the Engineering Science and Research Building (ESRB).
ESRB uses 54,000 CFM of 100% make-up air 24 hours a day 7 days a week.
This amount of ventilation air is required by OSHA.
No energy recovery system is presently installed.

2. What is a Heat Pump and How Does it Work?
A basic heat pump consists of 4 components.
Compressor
Condenser Coil
Evaporator Coil
Expansion Valve
Used to transfer energy from the exhaust air to the make-up air.
Our system will use a DX heat pump system.

3. What Makes This System Advanced?
The compressor in this system will be a Turbocor TT400.
The TT400 is a centrifugal compressor capable of 160 tons of cooling.
Utilizes magnetic bearings which eliminates the need for oil.
Capable of high COP’s which leads to higher efficiency and cheap operation.
Maintains high efficiency even at low loads.

5. Water-Glycol Heat Recovery System
Plans for a water-glycol heat recovery system were made but the system was never installed.
Exhaust ducts were designed to accept heat recovery coils.
Exhaust Air Duct

6. Why a DX System?
Latent heat of vaporization

8. 24,000 dollars/year

9. 30,000 gallons/year