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Case Study
ECOAZUR® System at Full Service Hotel Salt Lake City

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At a Glance
Full Service Hotel Salt Lake City
  • Case Study
  • Hotels, Resorts & Casinos
  • March 2022
The Objective
This full service hotel in Salt Lake City, Utah worked with Kitchen Energy Solutions on their goal to increase energy savings at their main kitchen. The challenge presented for this kitchen was due to their multiple kitchen areas and endless hours of operation.

This full service hotel features three separate kitchen areas as part of their main kitchen: the Main Kitchen Hood, Restaurant, and Service Kitchen. A total of 82 linear feet of hood is being served by four total exhaust fans and one air handling unit providing supply air to the kitchen spaces.

KES immediately recognized the tremendous opportunity for energy savings in these kitchens due to continuous runtime. Our team set out to design a system to modulate fan speeds based on varying levels of cooking activity.

Estimated Preliminary Analysis

Average New Fan Speed60%
Electrical Savings (Kilowatt-Hour/Year)165,501 kWhper Year
Electrical Savings ($/Year)$13,240.00per Year
Heating Savings ($/Year)$7,823.00per Year
Cooling Savings ($/Year)$1,050.00per Year

Values below are based on 24 hours of Runtime per Day with a Total Controlled CFM of 22,550 and Total Controlled HP of 37.5.

The Solution
ECOAZUR® was the perfect solution for these kitchens at this full service hotel, offering the ability to retrofit temperature and optic sensors on all commercial kitchen hoods, ultimately maximizing the energy savings in their kitchen.

An ECOAZUR® system was added with a single processor panel to take control of all exhaust fans and the air handling unit to modulate each fan based on temperature, smoke, steam, grease, and particulate changes in the space. Being mindful of existing standing pilots, the ECOAZUR® system maintains a minimum speed percentage during idle times to ensure there is sufficient exhaust airflow instead of needing to maintain a 100% constant speed.

These kitchen hoods can now operate independently and automatically to run the fans only on an as needed basis and for just the right amount of airflow needed for the cooking activity. KES also performed a full system balance inclusive of replacement sheaves, belts, etc. to ensure the fans are operating per original design.

The Results

Post Installation Analysis

(Actual Results)(Difference from Estimated Analysis)
Average New Fan Speed43%- 17%
Electrical Savings (Kilowatt-Hour/Year)203,577 kWh+ 38,076 kWhper Year
Electrical Savings ($/Year)$16,286.00+ $3,046.00per Year
Heating Savings ($/Year)$10,953.00+ $3,130.00per Year
Cooling Savings ($/Year)$1,470.00+ $420.00per Year

Values below are based on 24 hours of Runtime per Day with a Total Controlled CFM of 22,550 and Total Controlled HP of 37.5.

Total Dollars Saved per Year
$0
Combined electrical, heating + cooling savings of $28,709 per year
Average New Fan Speed
0%
Average fan speed decreased from 100% to 43% with ECOAZUR®
CO2 Reduction per Year
0 mil
Yearly carbon dioxide reduction of 1,651,036 lbs

Data Analysis
Discover this Full Service Hotel’s kitchen fan speed percentage trend within one week’s time.

Notice multiple days when the exhaust fan doesn't need to be in use!