Energy Efficient Food Service 2011

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

Documents

Energy Efficient Food Service 2011