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Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Thesis Final Presentation•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
Thesis Final Presentation
•Acoustical Analysis•Conclusion•AcknowledgementsQ ti•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•Facility Information
Fort George G. Meade, MD Mechanical Option
Facility InformationFacility Information•Mechanical Information•Goals
•CHP Analysis
Facility InformationLocation: Fort George G. Meade, MD
Total Cost: $56 000 000CHP Analysis•Thermal Storage Analysis•System Optimization Analysis•Electrical Analysis
Total Cost: $56,000,000
Occupancy: Office, Media Center
Delivery Method: Design‐Bid‐Build•Electrical Analysis•Acoustical Analysis•Conclusion•Acknowledgements
y g
Architect: HOK
Engineers: AECOM |HSMM•Acknowledgements•Questions Owner: Army Corps of Engineers
Construction Period: Spring 2009 to September 2011
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•Facility Information
Fort George G. Meade, MD Mechanical Option
Mechanical InformationFacility Information•Mechanical Information•Goals
•CHP Analysis
Mechanical Information
Ai D li S V i bl Ai V lCHP Analysis•Thermal Storage Analysis•System Optimization Analysis•Electrical Analysis
Air Delivery System: Variable Air VolumeChilled Water System: (3) 500 Ton Water Cooled ChillersEconomizer: Waterside Used for Data Center •Electrical Analysis
•Acoustical Analysis•Conclusion•Acknowledgements
Airside Used in AHU’sDistribution System: Primary/Secondary FlowHot Water System: (3) 3000 MBH Condensing Boilers•Acknowledgements
•QuestionsHot Water System: (3) 3000 MBH Condensing BoilersControl System: Direct Digital Control using BACnet
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•Facility Information
Fort George G. Meade, MD Mechanical Option
Goal:Facility Information•Mechanical Information•Goals
•CHP Analysis
Goal:
CHP Analysis•Thermal Storage Analysis•System Optimization Analysis•Electrical Analysis
Minimize Costs Spent on Energy Consumption, Making the Building Less
ff•Electrical Analysis•Acoustical Analysis•Conclusion•Acknowledgements
Expensive and More Efficient to Operate
•Acknowledgements•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction
•CHP Analysis
Fort George G. Meade, MD Mechanical Option
Absorption Combined Heat & Powery•Concept•Energy Cost Savings•Payback Period
Absorption Chiller
Cooling LoadsPayback Period
•Sensitivity Analysis•Thermal Storage Analysis•System Optimization Analysis Heating
Loads
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion
Waste Heat
Heating Loads
•Conclusion•Acknowledgements•Questions
Natural Gas
Electric Loads
Prime Mover & Generator
1.8 MW Base Load2.2 MW Peak Load
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction
•CHP Analysis
Fort George G. Meade, MD Mechanical Option
CHP Options CHP OptionsT S t D i ti
y•Concept•Energy Cost Savings•Payback Period
Type System Description
A
2390 KW JENBACHER IC ENGINE RUNNING AT FULL LOAD
800 TON SINGLE STAGE ABSORPTION CHILLER USED TO COVER
LOADS OF THE BUILDING
A BOILER IS USED TO MAKE UP NEEDED THERMAL ENERGY FOR
A C
Type System Description
Engine
s
F
1801 KW JENBACHER IC ENGINE RUNNING TO MEET BASE
ELECTRICAL LOAD
BUY SUPPLEMENTAL ELECTRICITY FROM THE GRID
800 TON SING STAGE ABSORPTION CHILLERAPayback Period
•Sensitivity Analysis•Thermal Storage Analysis•System Optimization Analysis ne
s
THE ABSORPTION CHILLER
B2390 KW JENBACHER IC ENGINE RUNNING AT FULL LOAD
(3) 500 TON ELECTRICAL CHILLERS USED TO COOL THE BUILDING
THERMAL ENERGY IS WASTED
2390 KW JENBACHER IC ENGINE RUNNING AT FULL LOAD
700 TON SINGLE STAGE ABSORPTION CHILLER
IC A BOILER IS USED TO MAKE UP NEEDED ENERGY FOR THE
ABSORPTION CHILLER
G1200 KW SATURN 20 TURBINE USED TO MEET BASE LOAD
BUY SUPPLEMENTAL ELECTRICITY FROM THE GRID
800 TON SINGLE STAGE ABSORPTION CHILLER1200 KW SATURN 20 TURBINE•System Optimization Analysis
•Electrical Analysis•Acoustical Analysis•Conclusion
IC Engin C
700 TON SINGLE STAGE ABSORPTION CHILLER
300 TON ELECTRIC CHILLER USED TO MEET LOADS NOT MET WITH
AN ABSORPTION CHILLER
D
2390 KW JENBACHER IC ENGINE RUNNING TO MEET ELECTRICAL
LOAD
800 TON SINGLE STAGE ABSORPTION CHILLER Turbines
H
1200 KW SATURN 20 TURBINEBACK PRESSURE STEAM TURBINE RUNS OFF HIGH PRESSURE
STEAM CREATED BY THE TURBINE
800 TON ABSORPTION CHILLERA BOILER IS USED TO MAKE UP NEEDED THERMAL ENERGY FOR
THE ABSORPTION CHILLER•Conclusion•Acknowledgements•Questions
A BOILER IS USED TO MAKE UP NEEDED THERMAL ENERGY FOR
THE ABSORPTION CHILLER
E
2390 KW JENBACHER IC ENGINE RUNNING TO MEET ELECTRICAL
LOAD AS WELL AS PEAK ELECTRIC CHILLER LOAD
650 TON SINGLE STAGE ABSORPTION CHILLER300 T E C
Gas T
I
1200 KW SATURN 20 TURBINEBACK PRESSURE STEAM TURBINE RUNS OFF HIGH PRESSURE
STEAM CREATED BY THE TURBINE
400 TON SINGLE STAGE ABSORPTION CHILLER USED TO COVER
LOADS OF THE BUILDING
500 E C300 TON ELECTRIC CHILLER MEETS LOADS NOT MET BY AN
ABSORPTION CHILLER500 TON ELECTRIC CHILLER USED TO MEET LOADS NOT MET BY
AN ABSORPTION CHILLER
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction
•CHP Analysis
Fort George G. Meade, MD Mechanical Option
Yearly Energy Cost Savings by Systemy•Concept•Energy Cost Savings•Payback Period
$600,000.00 $465 215 87
$578,552.11
Yearly Energy Cost Savings by System
Payback Period•Sensitivity Analysis
•Thermal Storage Analysis•System Optimization Analysis
$400,000.00
$500,000.00 $438,363.29
$408,300.27
$465,215.87
$504,490.46
$359 540 85 $317 935 24($)
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion $200,000.00
$300,000.00
$359,540.85
$233,094.67
$317,935.24
ly Savings (
•Conclusion•Acknowledgements•Questions
$‐
$100,000.00 $(48,049.99)
Yearl
$(100,000.00)
$‐
A B C D E F G H I
System
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction
•CHP Analysis
Fort George G. Meade, MD Mechanical Option
Payback Periody•Concept•Energy Cost Savings•Payback Period 8 0
9.0 8.78.2
Payback Period
Payback Period•Sensitivity Analysis
•Thermal Storage Analysis•System Optimization Analysis
6.0
7.0
8.07.1 7.0
5.0
7.3
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion 3.0
4.0
5.0Years
•Conclusion•Acknowledgements•Questions
0.0
1.0
2.0
0.0
A B C D E F
System
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction
•CHP Analysis
Fort George G. Meade, MD Mechanical Option
System E Payback with Increasing System E Payback with Increasing y•Concept•Energy Cost Savings•Payback Period 3
4
5
6
ars
Electricity Costs
3 00
4.00
5.00
6.00
ars
Electricity and Natural Gas Costs
Payback Period•Sensitivity Analysis
•Thermal Storage Analysis•System Optimization Analysis
0
1
2
3
0 10% 20% 30% 40% 50%
Yea
0.00
1.00
2.00
3.00
0 10% 20% 30% 40% 50%
Yea
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion 8
System C Payback with Increasing Electricity Costs
% Increase in Electricity Costs % Increase in Fuel and Electricity Costs
8 00
System C Payback with Increasing Electricity and Natural Gas Costs
•Conclusion•Acknowledgements•Questions
2345678
Years
2 003.004.005.006.007.008.00
Years
012
0 10% 20% 30% 40% 50%
% Increase in Electricity Costs
0.001.002.00
0 10% 20% 30% 40% 50%
% Increase in Fuel & Electricity Costs
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis
Th l St A l i
Fort George G. Meade, MD Mechanical Option
Peak Day Thermal Load•Thermal Storage Analysis•Concept•Energy Cost Savings
750
800
Peak Day Thermal Load
Energy Cost Savings•Payback Period•Sensitivity Analysis
•System Optimization Analysis650
700
ns
Peak Load Removed
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion 500
550
600To
n
Constant Chiller Load•Conclusion•Acknowledgements•Questions
400
450
Constant Chiller Load
Ice Storage vs. Chilled Water Storage
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hours
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis
Th l St A l i
Fort George G. Meade, MD Mechanical Option
Yearly Energy Cost Savings•Thermal Storage Analysis•Concept•Energy Cost Savings
Yearly Energy Cost Savings
fEnergy Cost Savings•Payback Period•Sensitivity Analysis
•System Optimization Analysis
• Ice storage produced negative savings from this analysis due to inefficiency of making ice and low electric rates. • Peak demand was determined on a monthly basis.
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion
• On-Peak to Off-Peak shift was determined on a daily basis.
Chilled Water Storage Savings•Conclusion•Acknowledgements•Questions
Demand Savings: $3,617.22On-Peak Savings: $7,025.21Total Yearly Savings: $10,643.43y g
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis
Th l St A l i
Fort George G. Meade, MD Mechanical Option
Simple Payback Period•Thermal Storage Analysis•Concept•Energy Cost Savings
Simple Payback Period
Energy Cost Savings•Payback Period•Sensitivity Analysis
•System Optimization Analysis
• Initial Investment was determined based on a 3,500 Ton-hr, 400,000 Gallon Tank and required accessories such as pumps, piping, etc.
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion
• Due to N+1 Redundancy requirements, One chiller/cooling tower could be removed, and the remaining chillers/cooling towers have to be
•Conclusion•Acknowledgements•Questions
upsized to 600 tons.
Initial Investment: $173,666Simple Payback Period: 16.32 Years
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis
Th l St A l i
Fort George G. Meade, MD Mechanical Option
•Thermal Storage Analysis•Concept•Energy Cost Savings 18.00
Thermal Storage Sensitivity AnalysisEnergy Cost Savings
•Payback Period•Sensitivity Analysis
•System Optimization Analysis12.00
14.00
16.00
•System Optimization Analysis•Electrical Analysis•Acoustical Analysis•Conclusion 6.00
8.00
10.00
Years
•Conclusion•Acknowledgements•Questions
0.00
2.00
4.00
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Percent Cost Increase
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Yearly Energy Cost Savings•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
Yearly Energy Cost Savings
C S f S OThermal Storage & CHP•Intro/Energy Cost Savings•Initial Investment•Payback Period
• CHP System A was used for this System Optimization Analysis• This system had the largest amount of wasted heat, which makes it a good candidate for integration with thermal storage.
•Payback Period•Data Center Chiller•DOAS
Electrical Anal sis
• Hour by hour storage analysis was performed on storage and waste heat from the CHP plant
•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t
Yearly Energy Cost Savings: $11,644 •Acknowledgements•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
Initial Investment for Thermal Storage with CHP350,000 Gallon Tank $ 354,200.00
Thermal Storage & CHP•Intro/Energy Cost Savings•Initial Investment•Payback Period
300 Feet of 5" Pipe $ 10,500.00
300 Feet of 2" Insulation for 5" Pipe $ 5,874.00
•Payback Period•Data Center Chiller•DOAS
Electrical Anal sis
(2) 15 HP Pumps $ 10,220.00
One Less (500 Ton) Chiller $ (293,062.50)
One Less (500 Ton) Cooling Tower $ (50,472.80)
•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t
Increasing Size of Original Chiller (500 to 650 tons) $ 71,200.00
Increasing Size of Original Towers (500 to 650 tons) $ 14,950.00•Acknowledgements•Questions
Increasing Size of Original Towers (500 to 650 tons) $ 14,950.00
Total $ 123,408.70
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Simple Payback Period•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
Simple Payback Period
CThermal Storage & CHP•Intro/Energy Cost Savings•Initial Investment•Payback Period
• Integrating thermal storage into a CHP system produced slightly better results than thermal storage on its own.
•Payback Period•Data Center Chiller•DOAS
Electrical Anal sis
• Due to a smaller tank, and slightly larger yearly savings, the simple payback period for thermal storage was around:
10 6 Years•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t
10.6 Years
•Acknowledgements•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Dedicating a Chiller to the Data Center to Increase Efficiency•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
g y
Data Center AnalysisThermal Storage & CHP•Data Center Chiller
•Concept•Energy Cost Savings
Data Center AnalysisEvaporator Temperature (˚F)
44 55 60
Condensing Water 85 85 85•Energy Cost Savings
•Payback Period•DOAS
Electrical Anal sis
Temperature (˚F)85 85 85
kW/ton 0.535 0.418 0.314
•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t
NPLV 0.314 0.256 0.2334
•Acknowledgements•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
Cooling Cost of the Data Center
Temperature MMBTU/year Savings $/yrThermal Storage & CHP•Data Center Chiller
•Concept•Energy Cost Savings
44˚ F 15137.0 ‐
55˚ F 14065 4 $28 155 00•Energy Cost Savings•Payback Period
•DOASElectrical Anal sis
55 F 14065.4 $28,155.00
60˚ F 13046.8 $54,946.00
•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t
Even with higher pumping costs, the total energy i f i hill t hi h t•Acknowledgements
•Questionssavings from running a chiller at higher temps was substantial
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Simple Payback Period•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
Simple Payback Period
fThermal Storage & CHP•Data Center Chiller
•Concept•Energy Cost Savings
• Initial Investment for dedicating a chiller only involved adding in a few valves, (2) pumps, and some piping.
•Energy Cost Savings•Payback Period
•DOASElectrical Anal sis
•The simple payback period calculated for running a chiller at 55˚ F was less than a year.
•Electrical Analysis•Acoustical Analysis•ConclusionA k l d t•Acknowledgements
•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
DOAS•Thermal Storage Analysis
•System Optimization Analysis•Thermal Storage & CHP
DOAS• DOAS paralleled with Chill d BThermal Storage & CHP
•Data Center Chiller•DOAS
•Electrical Analysis
Chilled Beams was modeled in TRACE 700 for annual energy and cost
i•Electrical Analysis•Acoustical Analysis•Conclusion•Acknowledgements
savings•Only lower energy density areas were modeled as
•Acknowledgements•Questions
DOAS with Chilled Beams
•Annual Energy Savings: 1,913 x 10^6 [BTU/yr]Annual Energy Savings: 1,913 x 10 6 [BTU/yr]•Annual Cost Savings: $46,949
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Electrical Schematic for CHP Interface•Thermal Storage Analysis•System Optimization Analysis
•Electrical Analysis
Electrical Schematic for CHP Interface
y•Acoustical Analysis•Conclusion•AcknowledgementsAcknowledgements•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Acoustical Analysis•Thermal Storage Analysis•System Optimization Analysis•Electrical Analysis
A i l A l i80
90NC Analysis for Jenbacher 2390 kW IC Engine
Original 2390
y
•Acoustical Analysis•Conclusion•Acknowledgements
60
70
2390 Two 8" CMU
NC‐55NC‐60
NC‐65
NC‐70
Acknowledgements•Questions
30
40
50
SPL (dB)
2390 8" CMU and 8" concrete wall
NC‐30NC‐35
NC‐40
NC‐45NC‐50
10
202390 8" CMU with metal stud & insulation
2390 8" CMU
NC‐15
NC‐20
NC‐25
NC 30
0
62.5 125 250 500 1000 2000 4000 8000
Frequency (Hz)
with metal stud no insulation
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Conclusion•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
Conclusion
CHP System E Yearly Savings: $578,552 •Acoustical Analysis
•Conclusion•Recommendation
y y g $ ,
Chilled Water Storage Yearly Savings: $10,643Recommendation
•Acknowledgements•Questions
Chilled Water Storage W/CHP System A Savings: $11,644
Dedicated Chiller to Data Center @ 55˚ F: $28,155Dedicated Chiller to Data Center @ 55 F: $28,155
DOAS (Office) Yearly Savings: $46,949
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
CoolingSystem E•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
650 Ton Absorption
Chiller
Cooling Loads
300
System E
•Acoustical Analysis
•Conclusion•Recommendation
Chiller
Heating
300 Ton Electric Chiller•Recommendation
•Acknowledgements•Questions
Waste Heat
gLoads
Electric Loads
Natural Gas
Jenbacher 2390 kW Natural Gas Engine & Generator
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Acknowledgements:•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
Acknowledgements:
•Acoustical Analysis•Conclusion
•AcknowledgementsSpecial Thanks To:
AE FacultyAcknowledgements•Questions &
Family and Friends
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Questions•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
Questions
•Acoustical Analysis•Conclusion•Acknowledgements
•Questions
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
Initial Investment by CHP System Initial Investment for Thermal Storage400,000 Gallon Tank $ 382,800.00 •Thermal Storage Analysis
•System Optimization Analysis•Electrical AnalysisA ti l A l i
System Cost
A $ 2,754,407.05
B $ 2,483,717.55
, $ ,300 Feet of 5" pipe $ 10,500.00
300 Feet of 2" Insulation for 5" Pipe
$ 5,874.00
(2) 15 HP pumps $ 10,220.00 One Less Chiller $ (293,062.50)•Acoustical Analysis
•Conclusion•AcknowledgementsQ ti
$ 2,483,717.55
C $ 2,478,387.55
D $ 2,800,156.55
E $ 2,439,842.55
( , )One Less Cooling Tower $ (50,472.80)Increasing size of original
Chillers$ 94,648.00
Increasing size of original Towers
$ 13,160.00
•Questions F $ 2,381,676.53 Total $ 173,666.70
Initial Investment for Thermal Storage with CHP400,000 Gallon Tank $ 354,200.00 300 Feet of 5" Pipe $ 10,500.00
300 Feet of 2" Insulation for 5" Pipe $ 5,874.00
(2) 15 HP Pumps $ 10,220.00 One Less Chiller $ (293,062.50)
One Less Cooling Tower $ (50,472.80)
Increasing Size of Original Chiller $ 71,200.00
Increasing Size of Original Towers $ 14,950.00
Total $ 123,408.70
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
CO2e Savings when compared to Grid
•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
A B C D E F
IC Engine
kWh 20,936,400.00 20,982,933.93 20,936,400.00 16,673,858.17 17,305,591.92 15,776,760.00
BTU 74,893,389,355.47 71,635,736,437.02 71,476,869,600.00 70,082,301,286.29 59,081,290,819.32 53,861,858,640.00
CO2e (lb) 10,260,394.34 9,814,095.89 9,792,331.14 9,601,275.28 8,094,136.84 9,011,793.30
1% Δ
•Acoustical Analysis•Conclusion•AcknowledgementsQ ti
Grid kWh 18,602,443 18,602,443 18,602,443 18,602,443 18,602,443 18,602,443
CO2e (lb) 33,856,445.42 33,856,445.42 33,856,445.42 33,856,445.42 33,856,445.42 33,856,445.42
Savings (lb) 23,596,051.08 24,042,349.53 24,064,114.29 24,255,170.15 25,762,308.58 24,844,652.12
•Equivalent of removing 1,916 cars!•Questions •Spark Gap: $18.99
•O&M costs from EPA.gov: $0.005/kWh•Assumed 40% Elect. Efficiency at 75% load. From manufacturer, full load electrical efficiency is 42.6%•System E never drops below 75% of the load, making load following very efficientg y•Thermal to Electric Ratio of 0.85 to 1.25 during the peak summer months
Presentation Outline DMA BuildingFort George G. Meade, MD
Pavel LikhoninMechanical Option
•Introduction•CHP Analysis•Thermal Storage Analysis
Fort George G. Meade, MD Mechanical Option
•Thermal Storage Analysis•System Optimization Analysis•Electrical AnalysisA ti l A l i
2300
8760 Electric Load w/out Thermal
•Acoustical Analysis•Conclusion•AcknowledgementsQ ti
2100
2200
•Questions
1900
2000kW
1700
1800
0 1000 2000 3000 4000 5000 6000 7000 8000
Hours