etsu cafeteria · the sustainability department on campus at etsu has been interested in creating a...
TRANSCRIPT
Background:
The sustainability department on campus at ETSU has been interested in creating a working relationship with the Aramark cafeteria staff for some time. Aramark is a tenant in the kitchen space on campus. Because of this, both the cost of energy consumed as well as the maintenance and replacement of kitchen equipment are the responsibility of East Tennessee State University. Aramark has an interest in the quality and upkeep of the kitchen equipment, while ETSU has an interest in reducing the energy consumption as well as the maintenance costs on equipment. Working together to find a balance between these two viewpoints will help solidify this relationship and could be extremely beneficial to both parties. This cafeteria audit was chosen as a project in order to help facilitate that relationship.
Findings:
During our initial tour of the space, we were able to take a comprehensive inventory of the appliances in the kitchen which use electricity as their main source of power (ignoring gas and steam powered appliances). Steam generators were included because they use electricity to create the steam that is used by the steam appliances. The data collected is attached to this report as the "Cafeteria Energy Audit Spreadsheet." While walking through the space, we also had a chance to speak with some of the employees in the kitchen spaces. The information provided by the users of the space helps us identify issues that may not be noticed during a walkthrough or may be overlooked by someone who doesn't physically use the space on a regular basis. This information will be discussed in the issues section.
Source: K. Moore
Source: K. Moore
The exhaust air fans are located outside on the roof of the building. These exhaust fans were inspected during a separate investigation. There are three exhaust fans on the roof which ventilate the exhaust hoods in the kitchen space.
Exhaust Air Fan Starter Panels
Source: S.Finney
Exhaust Air Fan Unit #14
Source: S.Finney
Issues:
There were several issues which were brought to our attention during our interview and walkthrough process. This section will identify all of the more pertinent issues that were discovered.
The toaster used is a commercial conveyor style device which continually runs during the day. This toaster uses approximately 2.4kWh of energy per day. It would be beneficial to replace this piece of equipment with one that is not constantly running. A four slot commercial toaster oven should prove to provide an almost immediate decrease in energy consumption.
Commercial Conveyor Toaster in question Source: K. Moore
The Exhaust Air Fans all run 24 hours a day, 365 days per year. The cafeteria staff had an issue with the fans not wanting to come back on. They were told to leave the fans on and that the fans wouldn't turn back on if they were shut off. We made contact with the facilities management staff in the University Center. Facilities has created a repair ticket for this problem and is in the process of remedying this issue. Once the starter motors have been repaired, facilities will be in contact with the Aramark staff to make sure that they are aware that there is no longer an issue with turning off these fans. Along with the benefit of reduced energy consumption, the university should see a reduction in the amount of conditioned air that is removed from the space during the less busy times of year.
Once the switch for the exhaust air fans has been repaired, the fans can be turned off overnight and on breaks. Shutting the equipment down during these times will net approximately $2300 in energy savings for the university.
Date: Auditor: Location:
ETSU Energy Right Solutions for Higher Education
Energy Audit
Date of Energy Usage Avg Daily UseType Manufacturer Model Manufacture (Watts) (Hours)
Heated Cabinet TRUE TA1H-1-S 2000 Pizza 0 0 No Plug on Cord
Pizza Oven Hood Giles Enterprises PO-VH Jul-09 920 Pizza 13.5 12420
Pizza Oven Lincoln 1130-000-U-K1837 10000 Pizza 13.5 270000 Impinger
Heated Cabinet TRUE TA2H-2-S 4000 Pizza 13.5 54000
Fridge TRUE T-49 115 6.1 701.5 Pizza 24 16836
Heat Lamp Halo L-Series 250 Pizza 13.5 13500
Pizza Hot Plate Hatco Corp GRSR-17 350 Pizza 13.5 18900
Refrigerated Prep Table
Randell 9110AM 115 6.5 747.5 Pizza 24 17940
Coffee Maker Bunn CWTF-APS DV.5HL 1370 Beverage 1 24 32880
Cremer Dispenser Creamiser Products 225 Sep-13 110 2.8 308 Beverage 1 24 7392
Milk Dispenser Silver King SK15MAJ 115 1.6 184 Beverage 1 24 4416
Iced Tea Dispenser Curtis TCTS10067 1650 Beverage 1 24 39600
Soda Machine Lancer 4500 115 3.6 414 Beverage 2 24 9936
Soda Machine Cornelius Inc DF200BC Aug-04 115 3.5 402.5 Beverage 2 24 9660
Juice Dispenser Lancer 1500 115 7.8 897 Beverage 2 24 21528
Under Counter Fridge TRUE TUC-48-LP 115 6.4 736 Salad Bar 24 17664
Soup Dispenser 120 7.5 900 Salad Bar 13.5 24300 Power consumption is an educated guess to complete energy use data for the marketplace
Under Counter Fridge TRUE TUC-27-LP 115 3.9 448.5 Fajitas 24 10764
Warming Plate CookTek MCB-1800 1800 Fajitas 13.5 48600
Water Heater Listed EIF6US017B 1650 Fajitas 24 39600
Fridge TRUE T49 115 9.1 1046.5 Dessert 24 25116
Toast Master Nu-Vu OP-4/8A 208 25 5200 Dessert 13.5 70200 "Proofer" - Two ovens in one. Bottom one makes yeast rise. Top one Convection Oven
Condition/ProblemsLocation NotesVoltage Amperage Daily Power Consumption
Equipment
Fan ID Number
Unit Tag Model Horsepower Voltage Amperage Energy Use (Watts)
Average Daily Use
(Hours)
3 ESR-7 NCA24FA 5.000 460 6.4 2944 242 ESR-6 NCA24HPFA 3.000 460 4.7 2162 241 #14 NCA16FA 0.750 208 6.0 1248 24
152496 Wh152.496 kWh
55508.544 kWh
Fan ID Number
Unit Tag Model Horsepower Voltage Amperage Energy Use (Watts)
Average Daily Use
(Hours)
3 ESR-7 NCA24FA 5.000 460 6.4 2944 142 ESR-6 NCA24HPFA 3.000 460 4.7 2162 141 #14 NCA16FA 0.750 208 6.0 1248 14
88956 Wh88.956 kWh
32379.984 kWh
23128.56 kWh
Energy Cost - BEFORE Starter Motor Repair
Based on a 14 hour kitchen work day (5am - 7pm)
Based on the ventilation fans running 24 hours per day
41216
Total Daily Power Consumption
Total Yearly Power Consumption
Yearly Energy Cost (@$0.10/kWh)
3026817472
Yearly Energy Savings via Starter Motor Repair2,312.86$
Daily Power Consumption (Watt
Hours)
Daily Power Consumption (Watt
Hours)
3,238.00$
5,550.85$
299525188870656
Total Daily Power Consumption
Total Yearly Power Consumption
Yearly Energy Cost (@$0.10/kWh)
Energy Cost - AFTER Starter Motor Repair