A&P Fresh Market with UTC Power PureComfort TM 240M
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Transcript of A&P Fresh Market with UTC Power PureComfort TM 240M
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A&P Fresh Market with A&P Fresh Market with UTC UTC Power Power PureComfortPureComfortTMTM 240M240M
Jim Kirk
Director of Engineering
The Great Atlantic & Pacific Tea Co.
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Project TeamProject TeamProject TeamProject TeamFacility:
57,000 Sqft A&P Supermarket, Mt. Kisco, NY
Project Sponsors:
UTC Power
DOE/
Oak Ridge National Laboratory
Utility:
Con Edison
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PureComfortPureComfortTM TM 240M for A&P240M for A&PPureComfortPureComfortTM TM 240M for A&P240M for A&P“Pre-Assembled” Integrated System:
Skid Mounted
4 - 60 kW microturbines
Gas Compressors
Carrier Double Effect Absorption Chiller
Cooling Tower
Chilled Water Pumping System
Provides 240 kW* of Electricity at 480v and 110 tons of Chilled water (95F day) or 900 MBTU Hot water (32F day)
* 240 kW is Gross Power at 59 F, Net Power is 228 kW at 59 F
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PureComfortPureComfortTMTM 240M Skid 240M SkidPureComfortPureComfortTMTM 240M Skid 240M Skid
Microturbines
Gas Compressors
Chiller
Chilled Water Pump Station
Cooling Tower
Chilled Water
Connections
Electrical Panels / Pump Controls
Exhaust Manifold
60’
12’
6”
Chiller Exhaust / Desiccant Connection
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PureComfortPureComfortTMTM 240M 240MPureComfortPureComfortTMTM 240M 240M
Microturbines
Chiller Enclosure
Cooling Tower
Gas Compressors
Exhaust Duct
Exhaust Diverter Valve
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System IntegrationSystem IntegrationSystem IntegrationSystem Integration
System Provides:
• 240* kW of Electricity
- Grid Parallel
- Grid Dependant
- Base Load
• Chilled Water:
- Space Cooling
- Refrigerant Sub-Cooling
• Desiccant Regeneration:
- Direct Exhaust Heat
• Hot Water:
- Winter Operation
- Space Heating
* 240 kW is Gross Power at 59 F, Net Power is 228 kW at 59 F
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System Integration (Heat Recovery)System Integration (Heat Recovery)System Integration (Heat Recovery)System Integration (Heat Recovery)
Chilled Water Pump
Cooling Tower
Cooling Water Pump
Air-Cooled Condenser
Vapor CompressionRefrigeration Cycle
Waste Heat DrivenLiBr/H2O Absorption Cycle
RefrigerantSub-Cooler
DesiccantSystem
AmbientAir
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System Integration (Electrical)System Integration (Electrical)System Integration (Electrical)System Integration (Electrical)
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System Integration (EMS Controls)System Integration (EMS Controls)System Integration (EMS Controls)System Integration (EMS Controls)Controls: Microturbines, Chiller & Cooling Tower are controlled Via On-Board
Controls
Chilled Water Pumps, Bypass Valves & Desiccant Wheel are Controlled Via Building / Refrigeration EMS System (Danfoss AKC-55)
Danfoss System controls Bypass Valve via two algorithms (Summer & Winter). A Manual Switch is used change from Summer to Winter Mode of Operation
Sub-cooler solenoid valves are “always on” in Summer Operation
Danfoss System Provides “Chiller Run” Input Only
Heating, Cooling & Desiccant have “redundant” Systems
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System Installation (Roof Top)System Installation (Roof Top)System Installation (Roof Top)System Installation (Roof Top)
PureComfort 240 Munters HVAC
Pre-Fabricated Refrigeration Penthouse
Chilled Water Supply / Return Refrigeration
Sub-Cooling
Water Coil
Desiccant Exhaust Manifold
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System Installation (Roof Top)System Installation (Roof Top)System Installation (Roof Top)System Installation (Roof Top)
Pure Comfort System
Munters HVAC
Desiccant Duct
Chilled Water Pipes to Refrigeration Sub-Coolers
Screening
Refrigeration Condensers
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System InstallationSystem InstallationSystem InstallationSystem Installation
Challenges
– Site Required a Roof Top Installation
– Weight of System Required Additional Steel Support
– Location / Pre-Fabricated Weight Required 600 ton Crane to Install
– Pre-Fabricated Size Of System Required Special Permitting for Delivery (Over Width & Over Height)
– Mechanical / Electrical Engineers not Familiar with Technology
– Utility not Familiar with Technology
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System InstallationSystem InstallationSystem InstallationSystem Installation Benefits of Pre-Fabrication
– Quality Control – Assembled in Controlled Environment
– Simplified Installation: Seven Point Connection
• Chilled Water Supply & Return
• 400 amp 480v
• High Natural Gas (5 PSI)
• Make up water
• Tower / Chiller Drain
• Exhaust Duct to Desiccant
• Phone Line
– Less Design Required by Local Project M/E Engineers
– Very Accurate Documentation for Utility Interconnection Applications
– Faster Start-up & Commissioning
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System Installation (Costs)System Installation (Costs)System Installation (Costs)System Installation (Costs) Cost
UTC PureComfortTM 240M $500K*
Coil In Munters Unit $8K
Steel $55K
Crane $37K
Electrical $27K
Plumbing $50K
Desiccant Ducting $8K
GC Management $14K
Total: $699K
$2,900/kWe Installed* Pre DOE Funding
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System Installation (Costs)System Installation (Costs)System Installation (Costs)System Installation (Costs)What Could We Do Better Next Time?
Put It On The Ground! Remove Redundant Systems! Cost
UTC PureComfortTM 240M $475K*
Coil In Munters Unit $8K
Removing Redundant Mechanical Systems (Munters) - $25K
Steel $55K
Crane $37K
Electrical $18K
Plumbing $50K
Desiccant Ducting $28K
GC Management $10K
Total: $564K
$2,350/kWe Installed* Pre DOE Funding
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System Inst. (Utility Interconnection)System Inst. (Utility Interconnection)System Inst. (Utility Interconnection)System Inst. (Utility Interconnection)Utility Interconnection:
Was Not an Issue!
– Turbines are NY State Type Tested and Approved for Interconnection
– NY State Law Forces Utilities to accept Standard Type Tested Interconnection
– Hardest Part was Getting to “the Right Person” within the Utility and “Educating” them about the System.
– Overall Application and Approval Process was very Simple
– Did Not Cause Any Delay or Additional Expense for Project
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System Installation (Commissioning)System Installation (Commissioning)System Installation (Commissioning)System Installation (Commissioning)Commissioning:
A Problem Develops:
– Turbines will not automatically re-start in “multi – pack mode”
– Turbine Software found to be the problem
– Software has to be NY State Approved
– Delayed System Interconnection test three weeks
That Was the Only Real Problem!!
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What’s the Bottom Line?What’s the Bottom Line?What’s the Bottom Line?What’s the Bottom Line?Reduced Energy Costs! Great PR!
Estimated Annual Avoided Energy Loads & Cost
Quantity % of Annual Baseline – Energy
Annual Cost Savings [$]*
Grid Electricity 54% $44,000
Refrigeration Compression 10% $10,000
Space Cooling Compression 70% $45,000
Desiccant Regeneration 50% $9,000
Space Heating 75% $21,000
Total $129,000
Gas = $0.69/therm & Grid Electric at $.13 kWh
*Maintenance costs not included
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Things To Consider:Things To Consider:Things To Consider:Things To Consider: Local Utility Costs (Can you do it cheaper?)
Can You Use The Chilled Water?
Is High Pressure Gas Available?
Local Interconnection Regulations?
– State Law?
– Local Utility Control?
– What are The Requirements?
Can You Get It There? (Permit Issue)
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Would We Do It Again?Would We Do It Again?Would We Do It Again?Would We Do It Again?
Yes!
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For More Information:For More Information:For More Information:For More Information:
Jim Kirk
470 Chestnut Ridge Road
Woodcliff Lake, NJ 07677
(201) 571-4865
Tom Coulbourn
2300 Westmoreland Street
Richmond, VA 23230
(804) 678- 5307
www.utcpower.com