the energy loop today and tomorrow - bishop's university€¦ · today and tomorrow michel...
TRANSCRIPT
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____________________________
March 1, 2013.
Campus Wide District Heating & Cooling System
The Energy Loop… Today and Tomorrow
Michel Caron, ing. Bishop’s University
John B. Samulack, Ameresco
Xavier Marchand, ing. Ameresco
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Vision & Mandate
The Vision of the Buildings and Grounds Dept. of Bishop’s
University is to be the Promoter and Guardian of our
physical and natural environments.
The Mandate of the Building and Grounds dept. is to
provide our community with professional and durable
services in the spirit of our Vision.
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Energy Efficiency Objectives
Put in place a concept that enables the utilisation of cost
effective energy sources.
Reduce our emissions of Green House Gases.
Target 2016 as the year we can potentially be Carbon
Neutral based on Direct GHG emissions.
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Bishop’s Campus
Yesterday
33 buildings
81 879 m2 (881,338 sq.ft)
Heating: steam network at
= 100 PSIG (328F)
Approximitely 600m
(2,000’) of buried lines
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Central Plant
GREEN
LAWN IN
JANUARY!
Yesterday
Inefficient Distribution
Steam traps
Steam vents
Purges
Poorly insulated Steam lines
in tunnels and buried
Numerous leaks
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Production of steam with all its inefficiencies
Central Plant
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Project
Project implementation in 2 phases:
1. 2010-2011: Eliminate steam distribution and
decentralize the heating plant
2. 2011-2012: Introduction of the Campus Energy Loop
• Geothermal Heating
• Energy Recovery
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Decentralised Heating Plants
Today
11 Heating Plants(hot water)
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Decentralisation
Central Plant becomes Energy Plant
11 Mechanical Rooms (water heaters)
Heat recovery from the new condensing furnaces.
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
![Page 16: The Energy Loop Today and Tomorrow - Bishop's University€¦ · Today and Tomorrow Michel Caron, ing. Bishop’s University John B. Samulack, Ameresco Xavier Marchand, ing. Ameresco](https://reader035.vdocument.in/reader035/viewer/2022070800/5f023dd97e708231d4034810/html5/thumbnails/16.jpg)
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Energy Loop
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Energy Loop
Cooling
Heating
Geothermal
87 F – 93 F
15 000 gallons
Propylene Glycol
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Energy Loop
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Energy Loop
Geothermal
Cooling Units
Chillers
recovery
Hot Water
Heaters
recovery
Second Stage
Heatpumps
(HWH + DHW)
70 (tons) X 4
Heatpump Mode
First Stage
Heatpump
170 (tons)
87 F - 93 F
50F 24F 80F
75F
180F
90F
90F 120F
90F
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Energy Loop
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Energy Loop
Geothermal
Cooling Units
Chillers
recovery
Hot Water
Heaters
recovery
Second Stage
Heatpumps
(HWH + DHW)
70 (tons) X 4
87 F – 93 F
90F
180F
90F
Wells Regeneration Mode
50F 90F
93F
120F
75F
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First Stage Heatpump (Energy Loop)
Energy Plant (old Central Plant)
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Geothermal
57 wells in closed loop
520’ – 530’ (158 m- 161 m)
deep
3 tons - 4 tons / well (171 tons
- 228 tons)
15,000 Gallons Propylene
Glycol
Design Min - Max
24 F, 100 F (-4 C, 38 C)
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Geothermal
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Geothermal
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Geothermal
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Solutions Provided
Flexible System, can expand : New Sports Center with new
Arena & new heatpumps.
Redundancies
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Results (Gj)
- 10,000 20,000 30,000 40,000 50,000
Decentralization
Geothermal
Lighting
Optimization
Total
Decentralization Geothermal Lighting Optimization Total
To Date (Gj) 25,140 5,000 1,128 4,288 35,556
Objectives(Gj) 25,140 10,294 1,128 4,288 40,850
January – December 2012
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Annual savings $472,000
(reference year 2006-07)
Equivalent of 350
residences of 2,000 sq.ft.
2,364 tons of CO2,
equivalent of 1,400 cars,
66% reduction
Results
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Presentation Order
1. Vision, Mandate & Objectives
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Long Term Vision
New Sports Center on the Energy Loop
Gradual reduction in the remaining use of fossil fuels
Heating
Transportation
others
Objective: Have a Carbon Neutral Campus in 2016 based on
Direct GHG emissions
Tomorrow
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Presentation Order
1. Vision, Mandate & Objectifs
2. Yesterday
3. Today
• Decentralisation of the heating plant
• Introduction of an Energy Loop
• Geothermal
4. Results
5. Tomorrow
6. Questions
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Think Globally,
Act Locally Thank you !