Presentation on theme: "A&P Fresh Market with UTC Power PureComfortTM 240M"— Presentation transcript:
1A&P Fresh Market with UTC Power PureComfortTM 240M Jim KirkDirector of EngineeringThe Great Atlantic & Pacific Tea Co.
2Project Team Facility: 57,000 Sqft A&P Supermarket, Mt. Kisco, NY Project Sponsors:UTC PowerDOE/Oak Ridge National LaboratoryUtility:Con Edison
3PureComfortTM 240M for A&P “Pre-Assembled” Integrated System:Skid MountedkW microturbinesGas CompressorsCarrier Double Effect Absorption ChillerCooling TowerChilled Water Pumping SystemProvides 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
6System Integration System Provides: 240* kW of Electricity - Grid Parallel- Grid Dependant- Base LoadChilled Water:- Space Cooling- Refrigerant Sub-CoolingDesiccant Regeneration:- Direct Exhaust HeatHot Water:- Winter Operation- Space Heating* 240 kW is Gross Power at 59 F, Net Power is 228 kW at 59 F
9System Integration (EMS Controls) Microturbines, Chiller & Cooling Tower are controlled Via On-Board ControlsChilled 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 OperationSub-cooler solenoid valves are “always on” in Summer OperationDanfoss System Provides “Chiller Run” Input OnlyHeating, Cooling & Desiccant have “redundant” Systems
11System Installation (Roof Top) Refrigeration CondensersDesiccant DuctMunters HVACChilled Water Pipes to Refrigeration Sub-CoolersScreeningPure Comfort System
12System Installation Challenges Site Required a Roof Top Installation Weight of System Required Additional Steel SupportLocation / Pre-Fabricated Weight Required 600 ton Crane to InstallPre-Fabricated Size Of System Required Special Permitting for Delivery (Over Width & Over Height)Mechanical / Electrical Engineers not Familiar with TechnologyUtility not Familiar with Technology
13System Installation Benefits of Pre-Fabrication Quality Control – Assembled in Controlled EnvironmentSimplified Installation: Seven Point ConnectionChilled Water Supply & Return400 amp 480vHigh Natural Gas (5 PSI)Make up waterTower / Chiller DrainExhaust Duct to DesiccantPhone LineLess Design Required by Local Project M/E EngineersVery Accurate Documentation for Utility Interconnection ApplicationsFaster Start-up & Commissioning
14System Installation (Costs) UTC PureComfortTM 240M $500K*Coil In Munters Unit $8KSteel $55KCrane $37KElectrical $27KPlumbing $50KDesiccant Ducting $8KGC Management $14KTotal: $699K$2,900/kWe Installed* Pre DOE Funding
15System Installation (Costs) What Could We Do Better Next Time?Put It On The Ground! Remove Redundant Systems!CostUTC PureComfortTM 240M $475K*Coil In Munters Unit $8KRemoving Redundant Mechanical Systems (Munters) - $25KSteel $55KCrane $37KElectrical $18KPlumbing $50KDesiccant Ducting $28KGC Management $10KTotal: $564K$2,350/kWe Installed* Pre DOE Funding
16System Inst. (Utility Interconnection) Was Not an Issue!Turbines are NY State Type Tested and Approved for InterconnectionNY State Law Forces Utilities to accept Standard Type Tested InterconnectionHardest Part was Getting to “the Right Person” within the Utility and “Educating” them about the System.Overall Application and Approval Process was very SimpleDid Not Cause Any Delay or Additional Expense for Project
17System Installation (Commissioning) A Problem Develops:Turbines will not automatically re-start in “multi – pack mode”Turbine Software found to be the problemSoftware has to be NY State ApprovedDelayed System Interconnection test three weeksThat Was the Only Real Problem!!
18What’s the Bottom Line? Reduced Energy Costs! Great PR! Estimated Annual Avoided Energy Loads & CostQuantity% of Annual Baseline – EnergyAnnual Cost Savings [$]*Grid Electricity54%$44,000Refrigeration Compression10%$10,000Space Cooling Compression70%$45,000Desiccant Regeneration50%$9,000Space Heating75%$21,000Total$129,000Gas = $0.69/therm & Grid Electric at $.13 kWh*Maintenance costs not included
19Things 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)