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Case Study
ECOAZUR® System at Lahey Hospital & Medical Center

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At a Glance
Lahey Hospital & Medical Center
  • Case Study
  • Hospitals
  • February 2022
The Objective
Lahey Hospital & Medical Center in Burlington, Massachusetts worked with Kitchen Energy Solutions on their goal to increase energy savings in their cafeteria. The challenge presented for this location was due to their multiple large kitchen hoods and exhaust fans moving a high volume of air 24/7.

Medical centers and hospitals are a great opportunity for energy savings in their commercial kitchens due to the long run time hours and quantity of cooking activity taking place. Lahey Hospital was no exception with 4 large kitchen hoods and 4 exhaust fans to move a large quantity of air all day long.

Our team was tasked to determine how energy savings could be achieved with this multiple hood and exhaust fan arrangement.

Estimated Preliminary Analysis

Average New Fan Speed59%
Electrical Savings (Kilowatt-Hour/Year)170,774 kWhper Year
Electrical Savings ($/Year)$25,616.00per Year
Heating Savings ($/Year)$20,064.00per Year
Cooling Savings ($/Year)$710.00per Year

Values below are based on 24 hours of Runtime per Day with a Total Controlled CFM of 23,650 and Total Controlled HP of 39.

The Solution
The ECOAZUR® DCKV system was the perfect retrofit solution for the cafeteria at Lahey Hospital, ensuring the fans and makeup air units only turn on and adjust when needed, resulting in continuous energy savings.

The ECOAZUR® standard system utilizing temperature and optic sensors was a perfect retrofit solution for this facility to ensure the exhaust fans and associated makeup air units would be able to modulate based on the varying cooking activity and operate on an as needed basis.

With BACnet communication to the building automation system, bypass variable frequency drives, and a full turnkey installation, ECOAZUR® will be continuously saving energy at Lahey Hospital & Medical Center.

The Results

Post Installation Analysis

(Actual Results)(Difference from Estimated Analysis)
Average New Fan Speed55%- 4%
Electrical Savings (Kilowatt-Hour/Year)176,136 kWh+ 5,362 kWhper Year
Electrical Savings ($/Year)$26,420.00+ $804.00per Year
Heating Savings ($/Year)$22,022.00+ $1,958.00per Year
Cooling Savings ($/Year)$780.00+ $70.00per Year

Values below are based on 24 hours of Runtime per Day with a Total Controlled CFM of 23,650 and Total Controlled HP of 39.

Total Dollars Saved per Year
$0
Combined electrical, heating + cooling savings of $49,222 per year
Average New Fan Speed
0%
Average fan speed decreased from 100% to 55% with ECOAZUR®
CO2 Reduction per Year
0
Yearly carbon dioxide reduction of 418,768 lbs

Data Analysis
Discover Lahey Hospital’s kitchen fan speed percentage trend within one week’s time.

ECOAZUR® ensures the exhaust fans automatically shut off when not in use.
New average exhaust fan speed of 32%!