ET Spotlight - ETCC...1:05 pm Lighting – LED A-Lamp Evaluation – SCE – LED Lights and Adura...
Transcript of ET Spotlight - ETCC...1:05 pm Lighting – LED A-Lamp Evaluation – SCE – LED Lights and Adura...
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ET SpotlightET Spotlight ““Spotlight on Emerging TechnologiesSpotlight on Emerging Technologies””
WebinarFebruary 24, 2011
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Safety MessageSafety Message
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Emerging Technologies Coordinating Council
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About the ETCC–
A collaborative forum where the stakeholder can exchange information on opportunities and results from ET activities.
–
Smoothes the path from the laboratory to the marketplace for cost-effective promising technologies that helps Californians save energy and money.
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Members
California Energy Commission
ETCCETCC -
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Agenda•
1:05 pm Lighting
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LED A-Lamp Evaluation –
SCE
–
LED Lights and Adura Controls Retrofit –
SMUD
–
Advance Lighting Control System / Office of the Future
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Exterior LED Lighting –
SDG&E
•
1:45 pm Residential
–
Residential Deep Retrofits –
SMUD
–
SunCache Solar Collector –
SoCal Gas
–
Radronics Hot Water Boiler Controls –
SoCal Gas
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Agenda•
2:10 pm Commercial
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Computer Thin Client Assessment -
PG&E
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Data Center Air Flow Management -
PG&E
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NovaTorque Highly Efficient Electric Motor, 3HP -
SMU
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High Efficiency Refrigerated Cases -
SCE
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2:45 pm Industrial
–
Water Energy Study -
PG&E
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Compressed Air Conversion to Low Pressure Blower -
S
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Lighting•
LED A-Lamp Evaluation –
SCE
• LED Lights and Adura Controls Retrofit –
SMUD
• Advance Lighting Control System –
SDG&E
• Exterior LED Lighting –
SDG&E
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Southern California Edison Spotlight on Technologies
LED A-Lamp Evaluation
February 24, 2011Presented By:Paul Delaney
Emerging Technologies Assessments Program Manager Design & Engineering Services
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•
Southern California Edison conducted an LED A-Lamp Emerging Technologies Assessment Project to determine the energy savings,
performance, availability, and comparison to Energy Star minimum
criteria.
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The A-19 incandescent lamp is a typical household lamp with a standard Edison screw base
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Used commonly by most people for its omni-
directional light characteristic.
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These lamps offer wide range of wattages from 25W up to 150W with efficacy of 12-18 lm/W
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All LED A-Lamps yield 75% savings or greater•
LED A-Lamps can save anywhere from 16kWh/yr to 746kWh/yr depending on the operating hours
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More than ½
of the lamps tested have CRI of 80 or better and efficacy of at least 50lm/W
Incandescent Wattage (W)
LED Average (W)
Percent Savings
(%)
25 6 76
35 7 80
40 8.7 78
60 13 78
100 21.8 78
CRI Number of LED A-19 Lamps
Does not Qualify 31
≥80 –
Pass 46
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It is recommended that any EE incentive program be based on meeting Energy Star’s minimum requirements
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Requiring a Lighting Facts label guarantees that the product has
been independently tested by a certified lab
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Questions
Paul DelaneyEmerging Technologies Assessments Program Manager
Design & Engineering Services
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Emerging Technology Coordinating Council
ET Spotlight
February 24, 2011
Dave Bisbee, CEM
Project Manager II
Customer Advanced Technologies
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Technology SpotlightCREE LR24 2 X 2 LED fixturesCREE LR6 LED recessed downlightsAdura Technologies wireless lighting controls
Photo credit: www.creeLED
Photo credit: www.creeLED
Photo credit: www.aduratech.com
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Technology Spotlight
CREE LR24-38SKA353800 lumens52 WattsEfficacy: 73 LPWCRI: 90CCT: 3500KRated L70 life: 50,000 hours Uses red and unsaturated yellow LEDs to produce warm, high-quality light
Photo credit: www.creeLED
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Technology Spotlight
CREE LR6650 lumens10.5 WattsEfficacy: 62 LPWCRI: 90CCT: 3500KRated L70 life: 50,000 hours Uses red and unsaturated yellow LEDs to produce warm, high-quality light
Photo credit: www.creeLED
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Technology Spotlight
Adura Technologies Wireless ControlsIndividually addressable and programmable controllersSelf healing wireless network (IEEE 802.15.4 and Zigbee)User interface software provides tremendous flexibility / limited energy consumption monitoring
Photo credit: www.aduratech.com
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Technology SpotlightOriginal System
Customer contact center
Existing 1.4 watts / ft2
3-lamp T8 fluorescent fixtures
Inboard /outboard switching
Illumination: 41fc/63fc
Photo credit: SMUD
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Technology SpotlightNew Lighting System
One CREE LR24 fixture per work station (a.k.a. office cubicle)
CREE LR6 recessed downlights for file cabinets & egress lighting
Wattage
100% output = 0.53 watts / ft2
40% output = 0.31 watts / ft2 LR24 Fixtures at 40% output Photo credit: SMUD
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Technology SpotlightControl Features for 2 x2 Fixtures
Each fixture is individually addressable and programmable
Group control via wireless manual wall switch
Individual fixture control via hand-held remote controls
Fixtures limited to a maximum of 80% of full output (via software)
Manual control options include on / off and dimming to 20% output
Ceiling mounted motion sensors configured to respond only after closing hours
LR24 Fixtures at 40% output Photo credit: SMUD
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Technology Spotlight
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Weekday Pre
Weekday Post
Weekend Pre
Weekend Post
Average daily office lighting load profile by day type. Source:
ADM Associates Inc.
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Technology SpotlightProject Results
Illumination levels with the system set to 80% maximum are comparable to original system with 3-lamps operating
Energy savings: 62.5% (6,033 kWh per year)
Electrical demand reduction: 66% (2.6 kW)
Utility bill savings: ~ $700 per year
Simple payback well over 10 years
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Technology SpotlightLessons Learned
Junction boxes too small to house AduraTech controls
Employees like the ability to turn fixtures completely off - not just dim them
Excellent illumination on task surfaces yet the office appears darker
Allow plenty of time to work through the concerns of the customer’s Information Technology (IT) department
Consider pre-programming the control devices at the factory, and deploying wireless gateways before installing the individual control devices
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Questions?
Dave Bisbee, CEM
Customer Advanced Technologies
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© 2006 San Diego Gas & Electric Company. All copyright and trademark rights reserved.
ET Spotlight San Diego Gas & Electric
Nate TaylorFebruary 24, 2011
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Today’s Topics
Advanced Lighting Controls System Assessment
Office of the Future 25% Solution
Outdoor Area LED Lighting
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Office of the Future/ALCS
Office of the Future (Advanced Energy Office) •
Concept which includes the incorporation of an Advanced Lighting
Controls System to maximize the efficiency possible in lighting
o Interior lightingo Interior lighting controlso Office plug loadso HVAC performance reviewo Demand responseo Advanced metering
Integration of HVAC building management system with lighting controls for LED and high efficiency fluorescent lighting• Lighting must be dimmable
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VA Office of the Future
Host Site• VA Medical Center San Diego•
1,000,000 square feet total
•
236 beds
Objective •
Technical Assessment of Advanced Energy Office Technical Requirements (New Buildings Institute) and Office of the Future
Methodology • Staged implementation of recommended technical
requirements
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Selected Project Area
2800 square feet of office space in Engineering Department
North facing windows with integrated blinds
Lighting• 44 2X4 fluorescent 3 lamp troffer
o Original: T12• 8 2X2 U tube fluorescent
o Original: T8• Manually switched • No occupancy or daylight sensors
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Selected Project Area (cont.)
Office configuration• Three individual private offices• 15 individual soft wall or “cubicle”
office work spaces• Open area conference and plan “room”
HVAC controlled by JCI Metasys
Operating hours• Average 10.5 hours per weekday
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Staged Implementation Approach
Stage 1•
Lighting
o Replaced ballast with Advance addressable dimming ballasto Replaced lamps with Philips 25W lampso Tuned all fixtures to 35 ft candles as per IESNA recommended
light levels for medium task lighting
•
Lighting control systemo Exergy Controls
Due to IT requirements used wired versionDaisy chain of ballast and sensors
RJ45 connection on ballast and sensors for easy installationReplaced traditional wall switches with multiple level or “scene”switchesInstalled by VA contract electrician
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Light Output Results
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Light output tuned to IESNA recommended 35 foot candles(shown as percentage of full brightness)
Daylighting Area
WINDOWS
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Power Reduction Results
Power when tuned to IESNA recommended 35 foot candles(shown as a percentage of full power)
Daylighting Area
WINDOWS
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Overall Results
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Energy Savings from both TUNING and DAYLIGHT HARVESTING
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Lessons Learned
In lieu of doing a one-for-one direct retrofit or upgrade of lamp and ballast, complete lighting redesign of space is recommended
The advanced lighting control system should be installed by a CALCTP certified contractor• This project took 4 call backs to get system properly working
o Incorrect wiringo Incorrect tombstone installationo Sensors incorrectly installed for each space
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What’s Next
Continue the staged implementation approach to quantify energy and power savings attributed to each stage
Stage 2• Office plug load
o LED task light with integrated occupancy sensorPhilips Color Kinetics
o Smart power strip on accessories
• Expected resultso Additional 5-10% energy savings based upon ENERGY STAR
estimates
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What’s Next (cont.)
Stage 3• HVAC performance review
o Expected resultsAdditional 7% energy and demand savings based upon ENERGY STAR estimates
Stage 4• Demand response
Stage 5• Advanced metering
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Outdoor Area LED Lighting Assessment
Objectives •
Examine the electrical, lighting, and economic performance of LED lighting technology in a parking lot and entrance roadway, as compared to the traditional light sources of metal halide (MH) and high pressure sodium (HPS)
•
Improve the quality of the lighting, including uniformity
•
Utilize the visual attributes of LED lighting to enhance security camera recording and visitor’s perception of security
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Outdoor Area LED Lighting Assessment
Host Site• Sharp Chula Vista Medical Center•
Parking lot lit by 20 400W HPS (nominal)
•
Emergency entrance roadway lit by 4 100W HPS (nominal)•
Operate 4165 hours annually (only at night)
Methodology • Replaced traditional HPS fixture with LED luminaire and
motion sensor in parking lot
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Project Results
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© 2006 San Diego Gas & Electric Company. All copyright and trademark rights reserved.
Questions
Nate TaylorFebruary 24, 2011
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Residential•
Residential Deep Retrofits –
SMUD
•
SunCache Solar Collector –
SoCal Gas
•
Radronics Hot Water Boiler Controls –
SoCal Gas
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SMUD ENERGY EFFICIENT REMODEL
DEMONSTRATION PROGRAM Presentation to ETCC
February 24, 2011
Mike KeeseeProject Manager
Energy Research & DevelopmentSMUD
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Why Deep Energy Retrofits?
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State Strategic Energy Plan -
40% Energy Use Reduction in ALL
Existing California
Homes by 2020•
SMUD Efficiency Goals -
15% Reduction
in Energy Use by 2015•
SMUD/SEP ARRA -
4,000 homes by 2012
•
Home Owners –
The “Magic #”
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What is it?Retrofit/Upgrade home to
reduce total household annual source
(electric/gas) energy use 50%
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Typical Residential Energy Efficiency Measures
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R-40 Attic Insulation with Radiant Barrier•
R-19+ Walls
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Air Sealing, Tight Envelope, 3ACH50•
SEER 16+ AC
•
AFUE 90% furnace w/ variable speed van•
Tight, tested R-6 ducts
•
Hi-Efficiency Water Heater•
Energy Star CFL fixtures and Appliances
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R&D
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Systems Approach•
New Wall Insulation Methods
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Home Automation•
Min-Split Heat Pumps
•
Heat Pump Water Heaters (all electric)•
Air Sealing Techniques
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4848
GreenBuilt Construction 8901 Quail Hill Way, Fair Oaks
Market Rate Flip•
47% Source Energy Savings•
$42k (No Solar)•
182 to 78 HERS score•
R-40 Attic Insulation with Radiant Barrier
•
High Efficiency Windows•
Air Sealing, 3.6 ACH50, 2.1 SLA •
SEER 16/ HSPF 9.0 Heat Pump w/ tight, tested R-6 ducts
•
Heat Pump Water Heater w/ Solar Pre-Heat
•
Energy Star CFL fixtures and Appliances
•
Solar Electric PV
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4949
Housing Group Fund 5832 Mascot Ave., Sacramento
Rehabbed Abandoned Home/ Affordable Housing
•
55% Source Energy Savings
•
241 to 86 HERS Score•
R-40 Attic Insulation with Radiant Barrier
•
High Efficiency Windows•
Air Sealing, 2.8 ACH50, 1.4 SLA
•
SEER 16/ 80% AFUE•
Tight, Tested R-6 ducts
•
Condensing Tankless •
Energy Star CFL fixtures and Appliances
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5050
32nd
Avenue
66% Source Energy SavingsR-40 Attic InsulationR-19 WallHigh Efficiency WindowsAir Sealing 2.9 ACH50, 1.5 SLASEER 14/.95 AFUE Ducts in Conditioned Space.62 EF Water HeaterEnergy Star CFL fixtures and Appliances
Rehabbed Abandoned Home/ Affordable Housing$30k
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5151
Results to Date9% less than existing
> 2x predicted electricity use57% less than existing 1.5x
predicted electricity use
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5252
Results to Date51% less than existing
Same as predicted 74% less than existing
40% less than predicted gas consumption
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5353
Pre 80s -
60% Savings Package•
HERS Testing/Inspections
•
Air Seal to 5 ACH50•
R-38 Attic Insulation (Radiant Barrier w/ Reroof)
•
SEER 14.5 AC/92 AFUE Furnace w/ Tight Ducts (< 6% leakage)
•
Energy Star Windows•
.62 EF+ Gas Water Heater or HPWH
•
Energy Star Hard Wired CFL Fixtures
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5454
Markets
•
All Electric Homes•
Foreclosures
•
Re-Sale•
Remodeling/Additions
•
Older Homes <1978
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5555
R&D Issues and Big Winners
•
T-24/HERS Modeling
•
Home Automation•
Air Sealing
•
Mini-Splits•
Plug Loads
•
Systems Approach•
Air Sealing
•
HPWH•
QuadLock
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5656
Summary
•
50% + Energy (and big kW) Savings Possible but Costly
•
DER Packages•
Right Targets
•
Watch out for Plug Loads
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5757
More Information
Mike KeeseeProject Manager(916) 732-5244
[email protected]/en/residential/EERD/Page
s/default.aspxResearch is supported by the U.S. Department
of Energy Building America Program.
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© 2006 Southern California Gas Company. Some materials are used by permission, and no copyright is asserted as to such materials. All copyright and trademark rights reserved.
SoCalGas ETP Spotlight Webinar
Steven Q. Ly Emerging Technologies ProgramFebruary 24th,2011
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59
SunCache
• Main Project Lead – California Air Resource Board
• What is System? • Low-cost, all-in-one, passive solar water heating• Use polymer materials in construction to reduce cost and
weight• The SunCache System is an early production low cost
solar hot water system alternative:• Combining solar collector and storage tank as 1 unit• No Pumps• No Controls• No Parasitic Losses
• System Components include:• Water Containment Panel• Heat Exchanger• Glazing• Frame• Valve Package• Installation Hardware
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60
SunCache
• How does it work, i.e. application• The SunCache System is
designed to collect solar energy from Sunlight and transfer it into the domestic Hot Water Supply
• As a Result – Natural Gas or Electricity will be offset resulting in a reduction Greenhouse Gas Emissions
• The Application, i.e. Type of Facility - The system is designed for single family and multi-family residential facilities
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61
SunCache
• Installation site – Why They Were Chosen• Climate Zone was the Primary Driver - The system was to be
tested in a variety of climate zones to test the effectiveness under different conditions
• Combination of Single Family and Multi-Family Residents• Map of Locations is shown below• Note: 2 multi-family Hanford sites represented by 1 marker
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62
SunCache
• M&V Protocol for SunCache System• The M& V protocol consisted of two types –
Detailed Protocol or Streamlined Protocol• Streamlined Monitoring Points:• Btu Meter on Solar Array• Supply & Return Water Temperatures Solar Array• Water Flow Solar Array• OSA Temp Sensor• Solar Isolation
• Detailed Monitoring Points• All Above Points• Btu Meter on Back-Up Water Heater• Supply & Return Water Temperatures on Back-Up
Water Heater• Water Flow on Back-Up Water Heater• Natural Gas Meter (multi-family only)
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63
SunCache
• Potential Savings• Displayed in the Table Below are the Results of the Systems
through 8 Months
Site Avg. Monthly Natural Gas Offset
Detailed Multi-Family Site (Hanford) 39.4 therms
Streamlined Multi-Family Site (Hanford) 76.4 therms
Detailed Single-Family Site (Claremont) 1.7 therms
Streamlined Single-Family Site (Los Osos) 2.8 therms
Streamlined Single-Family Site (San Luis Obispo) 1.4 therms
Streamlined Single-Family Site (Long Beach) 3.4 therms
Streamlined Single-Family Site (Los Angeles) 3.3 therms
Streamlined Single-Family Site (Claremont) No Data
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SunCache
• Detail of the study will be presented at ARB facility and Webcast on March 9, 2011
• Web-Link broad cast: http://www.arb.ca.gov/research/seminars/lee2/lee2.htm
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65
Raydronics System
• What is System?
• The Radronics System is a Control Panel and series of Sensors designed to optimize the boiler/water heater by staging and supplying a more precise water temperature
• System Components include:• A Control Panel• Associated Electronic Boards• Sensors
• The System performs functions such as:• Temperatures Set-Point• Temperature Differential• Desired throttling range
• Functions are reset or readjusted when heating demand is increased with colder ambient temperatures
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66
Raydronics System
• How does it work, i.e. application•The Control Panel is designed for a combined DHW / HHW System that uses the DHW in a fan coil; Raypak’s “Raydronics”
•How It Works - During mild weather days the water temperature is at a minimum set- point temperature, when the ambient air temperature decreases the water temperature increases thus supplying hotter water to the building, Temperature reset is based upon OSA
•The Application, i.e. Type of Facility - The system is mostly used in apartment buildings and motels
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67
Raydronics System
• Installation site – Why They Were Chosen• Climate Zone was the Primary Driver -
The system was to be tested in a variety of climate zones to test the effectiveness under different conditions
• Needed Multiple Similar-Sized Boilers – To allow for an Apples-to-Apples comparison between Baseline & Optimized
• Existing Infrastructure – To provide a Cost-Effective Test Existing Individual Gas Meters was an important driver
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68
Raydronics System
• M&V Protocol for various systems
• The M& V protocol consisted essentially of a comparison between the Baseline, i.e. non-optimized Boiler and a Boiler with a Controller to optimize performance.• Performance was verified by quantifying the natural gas used
over a period of time• As mentioned boilers were similar sized between Baseline &
Optimized Boiler• Similar Heating Load between Baseline & Optimized Boiler (#
of Apartments)• Boiler Supply & Return water temperature monitored to confirm
modulation or steady-state depending on Boiler• Goal: Apples-to-Apples Comparison for a Easily Repeatable test
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69
Raydronics System
• Preliminary Results
ENERGX RAYDRONICS CONTROL SYSTEM PILOT ‐
GAS CONSUMPTION TRACKING
Site Name City TYPEAvg. Therms Cons per
Living Unit
Huntington Creek Huntington Beach BASELINE 45 10.16%
Huntington Creek Huntington Beach OPTIMIZED 41
Highland Meadows Moreno Valley BASELINE 36 13.21%
Highland Meadows Moreno Valley OPTIMIZED 31
Sycamore Springs Rancho Cucamonga BASELINE 72 46.27%
Sycamore Springs Rancho Cucamonga OPTIMIZED 39
Woodland Village Costa Mesa BASELINE 26 ‐11.54%
Woodland Village Costa Mesa OPTIMIZED 29
Parkwood Village Anaheim BASELINE 40 20.00%
Parkwood Village Anaheim OPTIMIZED 32
The Crest Pomona BASELINE 23 22.18%
The Crest Pomona OPTIMIZED 18
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•QUESTIONS
SoCalGas ETP Spotlight Webinar
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Commercial•
Computer Thin Client Assessment -
PG&E
•
Data Center Air Flow Management -
PG&E
•
NovaTorque Highly Efficient Electric Motor -
SMUD
•
High Efficiency Refrigerated Cases -
SCE
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Thin Client AssessmentThin Client Assessment
Lee CooperET Spotlight Webinar
February 24, 2011
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73
Thin Client Opportunity
Current state: 70 watt (or more) desktop
Thin client: 5-15 watt thin client plus 200 watt server w/ 25 thin clients per server
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ET Assessment
Gather baseline data on computer energy use
Used PC network management software to monitor 110,000 PCs over a two week period
Hourly power usage data to refine energy savings calculation methodology
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PC Power States: Workdays vs. Weekends
20%
30%
40%
50%
60%
70%
80%
90%
100%
Mid‐8 AMDT
Mid‐8 AM PT
8 AM ‐ 2 PMDT
8 AM ‐ 2 PMPT
2 PM ‐5 PMDT
2 PM ‐5 PMPT
5 PM ‐MidDT
5 PM ‐MidPT
24 HoursDT
24 HoursPT
WorkdaysDesktop vs Portable PC Power States
All Industries
OFF
Sleep
On
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PC Power States by Industry Vertical
0102030405060708090
100
Financial Healthcare Education TransactionBased
AllIndustries
Workdays % of Day PCs are "On"
(Baseline)
DesktopPortable
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Summary
Thin client hardware is not a new concept
Virtual Desktop Infrastructure (VDI) used today in thin client rollouts. (Some VDI rollouts happen without thin clients)
Thin client-to-server ratio varies widely
Financial incentives can tip the balance toward adoption
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QuestionsQuestions
Lee CooperET Spotlight Webinar
February 24, 2011
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Numerical Simulation of Numerical Simulation of Data Center Airflow Data Center Airflow
ImprovementsImprovementsFrançois Rongere
ET Spotlight WebinarFebruary 24, 2011
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Context and ObjectivesImproper mixing of supply and return air is a major
cause of energy waste in data centers through:•
Excess of CRAH fan air flow
•
Over cooled air supply
The objective of the project was to quantify the impact of different air containment strategies recommended in the DC-PRO tool to reduce mixing and improve efficiency, focusing on:
•
Aisle containment•
Blanking panels
•
Floor sealing•
Perforated tile placement
Contractor: ANCIS
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Test Configuration
Cold Aisle
Hot Aisle
Cold Aisle
• 4 rows arranged with cold and hot aisles
• 1 AHU feeds two server rows
• Server density: 80 W/sqft
• Area: 39’ x 27’4”
• Height under ceiling: 11’
• Raised floor: 2’
• Server ΔT: 27oF
• CFD simulation
• 1 million cells
• k~εturbulence model
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Parametric studyHigh Quality
(3)
3. Floor sealing
No tiles outside cold aisles
No floor sealing (50% of total flow rate)
Some floor sealing (25% of total flow rate)
Good floor sealing (10% of total flow rate)
4. Tile placement Many (20%) tiles outside
cold aislesSome (10%) tiles outside
cold aisles
Full containment of cold aisles (1" gaps)
2. Blanking panels No panels
(20% of front rack area open)
Some panels (8% of front rack area
open)
All panels (2% of front rack area open)
Measure
1. Aisle containment No containmentDoors to cold aisles
(2" gaps)
Low Quality (1)
Mid Quality (2)
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Results
#6 (Base) #7 #8 #10 #11
1.Containment 1 2 2 2 3
2.Blanking panels 2 2 2 3 3
3.Floor leakage 2 2 2 3 3
4.Tile placement 2 2 3 3 3
Supply Air Temperature 71 71 72 74 74
CRAC/Server flow rate ratio this study
186% 170% 172% 145% 120%
CRAC/Server flow rate ratio DC‐PRO Tool
163% 150% 130% 123% 120%
MeasureConfigurations
Adjustment of AHU air-flow to keep in-let temperature in acceptable range (measured with Rack Cooling Index RCI =95%)
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ConclusionConfirmation of observed air flow excess and potential savings
Basis for recommendations for specific measures in DC-PRO tool
Definition of a realistic target for air-flow improvement to 120% of server air-flow
Understanding of lack of containment impact
Case # 6
Case # 11
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Thank you!
FX RONGERE IDSM Products
Industrial Systems
Tel: (408) 282 7538 Fax: (408) 282 7261 Cell: (415) 517 0946
e-mail: [email protected]
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Emerging Technology Coordinating Council
ET Spotlight
February 24, 2011
Dave Bisbee, CEM
Project Manager II
Customer Advanced Technologies
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Technology Spotlight
Photo credit: Novatorque Inc.
NovaTorque Brushless Permanent Magnet Motor
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Technology Spotlight
Photo credit: Novatorque Inc.
What is it?
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Technology Spotlight
Photo credit: NovaTorque Inc.
What Are the Potential Benefits?Maintains higher efficiencies during variable speed operation
Cost competitive with NEMA premium efficiency motors with variable speed drives
Generates less heat
Enhances reliability due to cooler operation
Smaller package enables the motor to be used in a wide variety of applications
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Technology Spotlight
Photo credit: ADM Associates Inc.
3 HP NovaTorque Premium Plus+™ Motor
3 HP NEMA Premium Efficiency Induction Motor (rated efficiency = 89.5%)
3 HP NEMA Standard Efficiency Induction Motor (rated efficiency = 87.5%)
What Was Tested?
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Technology Spotlight
Photo credit: ADM Associates Inc.
Dynamometer 5 HP Automated Test System StandTests motor and system efficiency
Torque range of 0 to 20 N-m
Speed range of 0 to 5000 RPM
Power limit of 3.7 kW
Magtrol TM308 20 N-m torque head
Magtrol 3410 torque display
Magtrol AHB-12 air-cooled hysteresis brake
Yokogawa WT1600 power meter
Dell Latitude E6400 notebook computer
How Was the Test Accomplished?
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Technology Spotlight
Monitored Motor System Efficiency Vs Speed (RPM) at Two Different Torque Outputs. Source: ADM Associates Inc.
30%
40%
50%
60%
70%
80%
90%
100%
200 400 600 800 1000 1200 1400 1600 1800
Motor Sy
stem
Efficiency (%)
Motor Speed (RPM)
Comparison of NovaTorque Motor To (2) Industry Standard Motors at 2 Different Torque Outputs
NovaTorque Premium Plus+ (100% Torque)
NEMA Premium Efficiency (100% Torque)
Standard Efficiency Motor (100% Torque)
NovaTorque Premium Plus+ (25% Torque)
NEMA Premium Efficiency (25% Torque)
Standard Efficiency Motor (25% Torque)
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Technology Spotlight
Test data used to develop performance curves for all three of the tested motors and drive systems
Performance curves and simulation software used to develop estimates for four typical scenarios:
1. Variable air volume (VAV) system with a right-sized motor (3 HP)
2. Variable air volume (VAV) system with an over-sized motor (5 HP)
3. Variable chilled water pumping system with a right-sized motor
4. Variable chilled water pumping system with an overt-sized motor
Next Steps
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94
Technology Spotlight
Data points are measured system efficiency values and were selected based on a calculated fan curve. Source: ADM Associates Inc.
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95
Technology Spotlight
Calculated results for using a 3 HP NovaTorque Premium Plus+™
Motorin a variable air volume (VAV) system application. Source: ADM
Associates Inc.
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0 4 8 12 16 20 24
Fan De
man
d (kW)
Hour of Day
Supply Fan Demand For an Average Summer Day
NovaTorque Premium Plus+NEMA Premium EfficiencyStandard Efficiency
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96
Technology Spotlight
Calculated results for using a 3 HP NovaTorque Premium Plus+™
Motorin a variable air volume (VAV) system application. Source: ADM
Associates Inc.
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97
Technology Spotlight
Calculated results for using a 3 HP NovaTorque Premium Plus+™
Motorin a variable chilled water pump system application. Source: ADM Associates Inc.
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 4 8 12 16 20 24
Pump D
eman
d (kW
)
Hour Of Day
CHW Pump Demand For an Average Summer Day
NovaTorque Premium Plus+
NEMA Premium Efficiency
Standard Efficiency
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98
Technology Spotlight
Calculated results for using a 3 HP NovaTorque Premium Plus+™
Motorin a variable chilled water pump system application. Source: ADM Associates Inc.
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99
Technology Spotlight
ObservationsEnergy savings potential merits further investigation via field tests – especially if initial cost is comparable
Search for SMUD demonstration site is currently underway
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Questions?
Dave Bisbee, CEM
Customer Advanced Technologies
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101101
Southern California Edison Spotlight on Technologies
High Performance Medium Temperature Refrigerated Display Case Evaluation
February 24, 2011Presented By:Paul Delaney
Emerging Technologies Assessments Program Manager Design & Engineering Services
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Evaporator Coil
Evaporator Fan
Discharge Air
Return Air
Product Display Shelf
Product Display Shelf
Product Display Shelf
Product Display Shelf
Product Display Shelf
Air C
urta
in
Adjacent Space(warm and moist)
Entrained Air
Mixing
Spilled Air
Refrigerated Space
Infiltrated Air
Discharge Air Grille (DAG)
Return Air Grille (RAG)
Back Panel
Back Panel
Back Panel
Back Panel
Back Panel
Lights
High Performance Display Cases
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• In a typical supermarket, MT compressors serving OVRDCs require about 46 kW and 290,000 kWh/yr
• 2,800 supermarkets (> 1.6M kWh/yr) in SCE’s service territory*– 128 MW (power demand for MT compressors) – 812 GWh/yr (energy usage for MT compressors)
• 6,900 supermarkets (> 1.6M kWh/yr) in CA*– 317 MW (power demand for MT compressors)– 2,001 GWh/yr (energy usage for MT compressors)
*Source: Itron. “California Commercial End-Use Survey: Consultant Report,” CEC-400-2006-005. March 2006.
Background
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• OVRDCs account for more than 50% of total display cases lineups
• Food and Drug Administration regulates the temperature of perishable food products (core product temp. ≤
41oF)
• Supermarkets and grocery stores are largest electric energy intensive building groups in commercial sector:– Annual energy usage intensity: 43 to 70 kWh/ft2/year– Refrigeration energy: more than 50% of total energy
• New generation of cases can reduce energy consumption over legacy cases
Background – cont’d
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Sample Baseline Specifications
• Open Vertical Refrigerated Display Case, medium temperature - 8-ft:– Avg. Discharge air temperature
(DAT): 29oF– Saturated evaporating temperature
(SET): 17oF– Avg Rated capacity: 1605 Btu/hr/ft– Avg. Est. compressor power:
2.43 kW
•
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High Efficiency Display Case Specifications (based on manufacturers data)• Hill Phoenix (O5DM), 8-ft:
– DAT: 30oF– SET: 22oF– Rated capacity: 1,570 Btu/hr/ft
• Hussmann (M5X-GEP), 8-ft:– DAT: 30oF– SET: 26oF– Rated capacity: 1,380 Btu/hr/ft
• Tyler (N6DHPACLA), 8-ft: – DAT: 34.5oF– SET: 28oF– Rated capacity: 1,059 Btu/hr/ft
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Sample Compressor kW Saving Estimates
• Replacing standard cases with high efficiency cases can save up to 16% in compressor power demand
2.312.43
1.93
2.24
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Hill Phoenix Hussmann
Standard and High Efficiency Models
Com
pres
sor P
ower
(kW
)
StandardHigh Efficiency%Δ = 8%
%Δ = 16%
1,570 Btuh/ftSET = 17oF
1,570 Btuh/ftSET = 22oF 1,640 Btuh/ft
SET = 18oF1,380 Btuh/ftSET = 26oF
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Conclusions
• While maintaining the warmest product temperatures below 41oF, the most efficient case had:
• Up to 26% lower infiltration load• Up to 22% lower total cooling load• Up to 14% lower compressor power demand
• Two of the cases did not meet maximum product temperature requirements.
• Anticipated that replacing standard with high efficiency cases can save between 8% to 16% in compressor power demand
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Recommendations • Although there is viable opportunity for EE rebate program, care must
be taken to ensure proper temperature/performance is maintained • Suggested characteristics of high efficiency OVRDCs:
– Highest saturated evaporating temperature (> 26oF)– Lowest temperature difference between discharge and return air (< 10oF)– Lowest vertical distance between the discharge and return air grille– Least amount of daily collected condensate (< 9.5 lbs/ft/day)– Lowest infiltration load per refrigerated volume (< 120 Btu/hr/ft3) – Lowest total cooling load per refrigerated volume (< 145 Btu/hr/ft3)– Lowest evaporator fan motor power (< 20 watts/fan motor)– Lowest display case lighting power (< 55 watts/canopy row)
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Questions
Paul DelaneyEmerging Technologies Assessments Program Manager
Design & Engineering Services
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Industrial•
Water Energy Study -
PG&E
•
Compressed Air Conversion to Low Pressure Blower -
SCE
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Including Energy Use Including Energy Use Information in Water Information in Water Pumping Station SCADAPumping Station SCADA
François RongereET Spotlight Webinar
February 24, 2011
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Context and ObjectivesMunicipal distribution water pumping represents about 1,000 GWh/yr of electricity use.
Pump station operation have not been driven by energy use information.
When provided with power use information operators may adjust their decision to reduce the electricity bill.
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Pilot ConceptWater utilities monitor at pump stations:
•
pressure•
flow
•
pump statusConnect PG&E meter into SCADA system:
•
energyReal time efficiency
monitoring and control
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Pilot DescriptionSan Jose Water Company
•
215,000 customers, 138 Sq miles•
130 MGD
•
Three pump stations with 1 to 4 ground water pumps and 3 booster pumps
East Bay Municipal Utility District•
400,000 customers, 325 Sq miles
•
200 MGD•
Four pump stations with 3 to 5 ground water pumps 55 MGD
•
Contractor: Global Energy Partners
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Pilot Results: San Jose Water Company
Total savings potential at three pump stations:•
6% energy savings if optimization algorithm was used
•
313,000 kWh/yr in savings, or ~$31,000 per year @$0.10/kWh
Energy Usage Comparison (2008)
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
kWh
Current Condition Optimized
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Pilot Results: East Bay Municipal Utility DistrictImprovements in energy efficiency have not been
sustained:•
Energy use is impacted by factors beyond the pump station itself
• Instantaneous optimal values do not lead to long term minimum energy use
• Other events impact water pump operation
• Operators may not have followed optimization rules
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Conclusion•
Including energy use in SCADA systems of water agencies is fairly easy
•
Savings can be captured by optimizing the use of pumps within a station and across a group of stations
•
Modeling of the water distribution system may be needed to actually capture the full optimization potential
•
For non-automated distribution system, operator behavior change may take time to include energy efficiency in operation rules
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Thank you!
FX RONGERE IDSM Products
Industrial Systems
Tel: (408) 282 7538 Fax: (408) 282 7261 Cell: (415) 517 0946
e-mail: [email protected]
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120120
Southern California Edison Spotlight on Technologies
Compressed Air to Low Pressure Blower Evaluation
February 24, 2011Presented By:Paul Delaney
Emerging Technologies Assessments Program Manager Design & Engineering Services
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Change Compressed-Air Process to Use Low Pressure Blower Air
Some manufacturing and industrial processes use compressed air for applications that can be done with low pressure blowers instead. The following industrial processes have been identified as potentially inappropriate uses of compressed air:
–
open blowing –
sparging–
drying–
aspirating –
atomizing –
dilute phase transport –
vacuum generation –
personnel cooling –
diaphragm pumps –
vacuum venturi–
cabinet cooling
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Incumbent Technology -
Compressors
For open-blowing types of production processes such as removing debris from a plastic extrusion process, this can be done more effectively using air blowers, which also provides 70% to 90% in energy savings when compared to compressed air systems.
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Energy and Demand SavingsCase Study: Thermoplastic Extrusion Process.•
Peak Demand Savings = 13 kW
•
Annual Savings = 78,000 kWh•
Material Cost = $16,900•
Simple Payback = 1.5 years•
Additional Benefits:–
Lower noise level (about 10 dB(A) lower)
–
Lower maintenance cost compared to the compressor system
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Conclusions
•
For “Open Blowing”
industrial processes (e.g., cooling, removing debris or water), blowers can save between 70% to 90% in compressor energy uses for the process.
•
Blower works well if the industrial process requires air constantly.
•
Blower does not work well for:–
Pneumatic process–
Humidity restricted applications (e.g., microprocessor fabrications)
–
Temperature restricted applications (e.g., some food processing), etc.
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Questions
Paul DelaneyEmerging Technologies Assessments Program Manager
Design & Engineering Services
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Emerging Technologies Coordinating CouncilETCCETCC -
•
Website
–
http://www.etcc-ca.com
•
On-Line Survey
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Thank You !