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Park Potomac Place is an elegant, ten-story condominium tower with 80 high-end residences and a total space of 250,000 square feet. It includes two levels of below-grade parking, a clubhouse with a clubroom, two fireplaces, a fitness center, guest suites, a circular pool, and a landscaped plaza area. It was developed by Foulger-Pratts.
The Project:
14 traditional single speed fans operated at full speed 24/7 and provided ventilation for the 87 kitchen hoods connected to 14 shafts.
Residents complained about a constant noise from the kitchen hoods and ducts caused by turbulence and vibration
The ductwork amplified the noise generated by the fans themselves.
Large amounts of conditioned air was exhausted to the outdoors as the exhaust fans were constantly running at full speed.
ENERVEX Solution:
A technical team decide to upgrade fan system with an ENERVEX MBES, Demand Controlled Ventilation system.
Fans are now operating at high speed less than 60 minutes per day as kitchen hoods operate a very short period of time.
Exhaust rate has reduced dramatically 23 hours per day.
Fan upgrade eliminated noise problem.
Fan upgrade saved $77,000 annually just from reducing the exhaust rate and the loss of conditioned air.
Energy savings from using a variable speed fan over a single speed fan amount to $10,000 annually or $1,000 per kitchen hood
The total project cost to upgrade to an ENERVEX MBES, Demand Controlled Ventilation system amounted to $60,000.
Payback: 8 months. 5-year ROI of 632%.
Demand Controlled Ventilation systems added comfort by dramatically reducing noise levels and provided a truly “green” and sustainable ventilation solution
