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8/4/2019 Energy Efficient Food Service 2011
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Summer 2011
Sustainability in Practice
Presentation by:
Richard YoungSenior Engineer and Director of Education
The Food Service Technology Center (FSTC) programis funded by California utility customers with public
purpose program (PPP) funds and administered by thePacific Gas and Electric Company under the auspices of
the California Public Utilities Commission.
Promoting:
Energy Efficiency in Commercial Food Service
Save Energy
Our Goal Today:
Make More
Be Greener
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Food Service Technology Center:Who? What? Why?
Who?
Specializing in commercial food service.
Promoting energy efficiency and performance
Celebrating 24 years of hard work!
The Food Service Technology Center (FSTC) is an
unbiased energy-efficiency research programfunded by California utility customers.
What?
Appliance Testing Lab
What?
On-site Energy Monitoring
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What?
Energy Surveys
What?
Information Sharing
Why? Food Service is Energy Intensive!
Source: www.energy.ca.gov/2006publications/CEC-400-2006-005/CEC-400-2006-005.PDF
7 times more 5 times more
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FSTC studies all the ways you useenergy and water
An example of the total energy breakdown (BTU) in a full service restaurant.
Saving energy and water is asuccessful business strategy!
the place to start:
Scrutinize operationsFind and Fix Energy Leaks
Lighting
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Efficient Lighting is a
75%-OFF Sale
Lighting
Replace incandescent lamps in back ofhouse and exterior fixtures with compact
fluorescent lamps (CFLs)
Install ENERGY STAR QualifiedCompact Fluorescent Lamps (CFL)
14 Watt globe vs. 60 Watt A lamp
capital cost $4
energy cost $11*
install cost $3**
total = $18
capital cost $3
energy cost $48*
install cost $20**
total = $71
Savings = $53*8,000 hours @ $0.10/kWh
**15 min @ $10.00/hr
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Right Idea - Wrong Application Use CFL flood lamps for menu boards
Aluminum Reflector CFLPAR lamps
www.westinghouselightbulbs.com/aluminumpar
Control Outdoor LightingTurn off parking lot lights, soffit lights,
menu boards, decorative lights, etc.
whenever possible.
Never leave lights on during the daytime!
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Lighting control with anastronomic clock.
Seasonal adjustment without the photocell.
Linear Fluorescent Lamps
Replace T12 lamps with magnetic ballasts withT8 lamps with electronic ballasts:
30% less energy use
better light quality
delamping use fewer lamps
Exit signsAll EXIT signs must be 5 watts per sign.
Appropriate technologies include Light Emitting Diode (LED),Electroluminescent, or Photoluminescent.
Front of House LightingShould Look Great!
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Dont make this mistake.Spring lamps are not decorative!
Match the Lamp to the Fixture:
Decorative CFLs are acost effective solution
decorative CFLs are readily available
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Cold Cathode CFLs:Small, Dimmable, Long Life
Cold Cathode Torpedo and Flame Tip
Bottom line...
CFLs are still the mostcost effective solution forbasic workhorse lighting
LED Lamps are very promising!
Good color rendering (80+ CRI) Dimming Long life/durability Efficiency (getting better every day)
...and they look cool!www.eco-story.com
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14W LED vs. 50W Halogen R38
capital cost $99
energy cost $70*
install cost $3**
total = $172
capital cost $112
energy cost $250*
install cost $40**
total = $402
Savings = $230
*50,000 hours @ $0.10/kWh
**15 min @ $10.00/hr
Sanitation
Every Drop of Hot WaterCost You Three times:
HeatingEnergy
SewerWater
The pre-rinse station in yourdishroom is an energy hog...
Install a low flow pre-rinse spray valve ( 1.6 gpm)at the dish station.
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$0
$400
$800
$1,200
$1,600
4.5 gpm 1.6 gpm 1.4 gpm 1.15 gpm 0.64 gpm
Example: Annual Cost to Operate
$1,200 a year savings
Replace Hand Sink Aerators
Fix those leaks!
Even a small drip adds up:
50,000 gallons/yr
$350 for water
$500 for water heating
1.00/therm gas & $5.00 per unit water/sewer
One final tip:
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Fix those sprinkler heads!Water Heating
4 Hot Water Heater Must-Dos
activate
allocateinsulate
regulate
Insulate Hot Water Lines
Keep the hot water
you paid to heat!
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Insulate the water lines.Saves about $4 to $5/year/foot*
*based on horizontal 1.5 inch pipe, 70 F ambient, indoor installation, 80% efficiency
Bare Hot Water Line
Allocate the recirc pump operation:use a timer to turn it off at night.
Example savings: $300 a year*
*includes $100 in electric pump energy savings
Distribution System Cost ComparisonFSR with 80%TE tank is modeled with 220 feet of recirculation
piping to investigate the operating costs of the recirc system
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Regulate the tank temperatureby properly setting the thermostat.
Example savings: $600 a year
Activate the automaticflue-damper control: turn it on!
Example savings: $300 a year
www.fishnick.com/publications/waterheating
Standard Efficiency Tank-TypeFlue Damper
Burner
Water Inlet
Water Outlet
Gas Inlet
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High Efficiency (Condensing) Tank-Type
Exhaust
Air Inlet
Blower
Burner
Water
Outlet
Water
Inlet
Annual Water Heating Cost
Full-service @ 2500 gallons/day
Refrigeration
What is Refrigeration?It is removing heat from the air in a box
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A leaky refrigerator door wastesexpensive electricity
24 hours a day - 7 days a week
Keep the Heat out!
Keep the Heat Out
Maintain refrigerator doors by:
1. replacing worn gaskets,2. aligning doors,
3. enabling automatic door closers, and4. replacing worn or damaged strip curtains.
Door Gaskets and Closers
Make sure that the refrigerator doortotally seals off the opening to therefrigerated space.
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Typical Mistake
Not Shut = Bad
Auto-Closers For Coolers Or FreezersThe auto-closer should be able to firmly close adoor that is within one inch of full closure.
Enable the Auto-Door CloserClose the
Ice Machine
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Mis-aligned doors = infiltration andice on doors
InfiltrationLeads to Ice
Build-up
Install Strip Curtains on Walk-In Boxes
Insurance against propped-open doorsAn efficient door?
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3 out of 4... almost there! Keep it Calibrated
There are many ways to save energy in arefrigeration system, but properlysetting the temperature is the cheapestand easiest.
Check and properly set defrost time clocks
Dont defrost more often than necessary
Dont defrost during the peak energy-useperiodsNoon to 6pm
Keep the Heat Flowing
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Keep the Heat Flowing
Maintain refrigerator coils:1. Clean evaporator coils,2. Clean condenser coils,3. Remove obstructions,
4. Maintain the condensate drain lines
Clean Coils
Dirty coils = increased energy +early failure
Maintain the evaporatorcondensate drain line
keep line clear (at both ends)
make sure the line is not frozen
repair or install heater wire
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Replace and insulate faultycondensate drain line heater wire.
make sure the line is not frozen
Replace Inefficient Motors
The fan motors inside a walk-in spin24 hours a day. These motors are old
school workhorses - reliable but nottoo efficient.
Commercial Kitchen Ventilation
Kitchen Ventilation is measuredin CFM
Your hood eats a lot of basketballs!
CFM (cubic feet per minute)
A cubic foot is about the size of a basketball.
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The GoalReduce the CFM but still
capture and contain the smoke and heat.
reduced fan energy consumption
reduced fan kW (lower demand)
reduced heating and AC energy consumption
potential gas and electric impact
Resource: On-line Design Guides
February, 2007 Energy Auditing Techniques for Small Commercial Facilities 150
Two NuggetsHow to keep the smokeand heat in the hood.
Optimize the Kitchen Exhaust Hood
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Push Appliances Back
Add Side Panels
Problem: The kitchen exhausthood operates at 100%.
All day long.(And sometimes all night as well.)
Whether you are cooking or not!
Solution: Variable Speed ExhaustFan Control Demand Ventilation
Optical
Sensor
Temperature
Sensor
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Demand Ventilation Control Technology Assessment
Halton
Duct Temperature Sensor &
Infrared Sensors
Captive Aire
Duct Temperature Sensor
Melink Intellihood
Duct Temperature Sensor & Vapor Detection
Demand Ventilation Savings:
Exhaust and Makeup-Air Fan Energy
Makeup-Air Heating and Cooling
Bonus: Quiet Kitchen!
Cooking
Are your appliancesriding the clock...?
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Control Appliance On Time:1.Start Up and Shut Down schedule2. Use timed controls vs. manual3. maintain appliances
Turn off plug loads whenpossible!
Pay careful attention to kitchen "plug loads". Forinstance, turn off holding cabinets, coffee machines,
conveyor toasters, steam tables, plate and foodwarmers, and heat lamps when not needed.
Example: 3 coffee warmers = 270 watts
Maintain Your EquipmentIf it looks wasteful...
It is!
Cooking equipment is
Energy Intensive!
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Purchase Your Equipment Wisely!
Find efficient appliances withENERGY STAR
Californias Energy Wise program
is an Easy Way to find even moreefficient equipment!
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For example:How much money can you save
with a high efficiency steamer?
The Steamer Challenge:The open-system design sends a lotof energy and water down the drain.
Boiler Based Steamer (low efficiency)
Average Water Usage = 40 gph
The Steamer Challenge:The closed-system steamer is muchmore energy and water efficient
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8-Year Life-Cycle CostThree-pan Steamer Example
$17,500!
$950
Based on 10/kWh and $5 a unit for water
How much can you save with aHigh Efficiency Gas Fryer?
Standard Efficiency vs. High Efficiency
Gas Fryer Efficiency Life-Cycle Cost* vs. Purchase Cost
$0
$2,000
$4,000
$6,000
$8,000
$10,000
$12,000
$14,000
$16,000
$18,000
PresentValu
e
Purchase Maintenance Energy
*Based on $1.20/therm, 16-hr/day usage, 125 lb/day foodcooked, a 8-year life expectancy and a 3.1% discount rate
$3,195!
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The more efficiency fryer had a higherinitial cost but a lower cost to operate.
total energy savings paid for the entire
initial cost of the higher efficiency fryer.
After 20 years of site audits, theFood Service Technology Center
has a long list of
Green Recommendations!
Dilemma: How to share all thisinformation with everybody?
FSTC Partners with
the National Restaurant Association and
Kendall College
Education and Recognition Program
Online Resource:
Simple and StraightforwardGuide for education and
implementation of sustainability
http://www.restaurantsconserve.com
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www.restaurantsconserve.com
Energy = $$$ = CO2
The Greenest energy
is the energy you never used!
www.FISHNICK.COM