Presentation - Building Science Capstone Project - CIBC Bank Retrofit

8/12/2019 Presentation - Building Science Capstone Project - CIBC Bank Retrofit

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CIV 498Group Design Project

CIBC Bank

College and Spadina

Authors: Brett Sagert 997233845 and

Shuliang (Peter) Sun 996007440


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Presentation Layout

Introduction

Sustainability Measures

Retrofits Considered- Photovoltaics - Passive Heating

- Non-Passive Heating - Green Roofs

- Rainwater Capture - Energy Efficient Fixtures

- Windows

Final Economics


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Site Location

North West Corner of

College and Spadina

268 College Street

High Walkability and

Transit Access

Built Late 1980s


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Current Condition

Three main faades

Three EntrancesTwo Pedestrian

Typical Roof 480 m

A Small Parking Lot

One Washroom

No Lighting Schedule


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Energy Consumption Baseline

63,000 ekWh Electrical

Consumption

300,000 ekWh Natural

Gas Consumption

282 m of Water

Consumption

(Assumption of 50 trips

to washroom/day)


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Energy and Cost

Significant savings to building

Projects must payback within ten year time period

Water Management

Zero consumption of city water, self-reliance

Energy efficient fixtures

Embodied Energy

Life cycle analysis


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Energy and Cost

Significant savings to building

Projects must payback within ten year time period

Water Management

Zero consumption of city water, self-reliance

Minimal consumption of city water

Energy efficient fixtures

Embodied Energy

Life cycle analysis


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Life Cycle Analysis (LCA)

4 levels, in our analysis we look at 1st level(direct energy input)

Manish K. Dixit, Charles H. Culp, Jose L Fernandez-Solis (2013)Our study

when you consume anything, you are consuming energy."


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Life Cycle Analysis (LCA) II

In a buildings life cycle theres Embodied Energy (2-38%) and

operational energy

In our LCA(1stlevel) we took into account the energy involved in

the raw material acquiring and transporting raw materials,

manufacturing, constructing, operating, decommissioning, and

disposal.


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Life Cycle Analysis (LCA) III

By completing a LCA we are able to see the

effects that products, processes, and activities

that have on local, regional or global

environments.

Steel Aluminum Lumber Straw bale Concrete (30 Mpa) Glass

Virgin / Recycled

(MJ/Kg) 32/10 191/8 8.5 0.24 1.3 15.9

Embodied Carbon

(kg CO2 /kg) 1.8/0.7 8/1.7 0.46 0.24 1.3

Why is it important?


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Life Cycle Analysis (LCA) III

By completing a LCA we are able to see the

effects that products, processes, and activities

that have on local, regional or global

environments.

Steel Aluminum Lumber Straw bale

Concrete

(30 Mpa) GlassRecycled

(MJ/Kg) 10 8

Virgin (MJ/Kg) 32 191 2.5 0.24 1.3 15.9

Why is it important?


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Photovoltaics-Off set peak electricity. FIT 2.0 rates for photovoltaic around 0.55$/ekWh.

-Want to install 10 kW system require about 90 m out of 478 m roof space


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Photovoltaics-Off set peak electricity. FIT 2.0 rates for photovoltaic around 0.55$/ekWh.

-Want to install 10 kW system require about 90 m out of 478 m roof space

LCA 1 kW 10kw system

Embodied Energy (kWh) 5598 55,980Space needed (ft^2) 100 1,000

(m^2) 9.7 97

Energy Generated kWh/year 1200 12,000

Payback Period (yrs) 5

Sanyo HIT Power 240S

Sanyo HIT 240S

Rated Power (S.T.C) 240 W

Cell Efficiency 21.6 %

Rated Power for 42 panels 10.1 kW

Panels per module 5 ( 1.2 kW)

Number of modules 7

Price per panel $560

Total price (42 panels) $23,520


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0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

0.00 90.00 180.00 270.00 360.00

Elevation

(degree

s)

Magnetic Bearing (degrees)

Sun Position

JulyAugustSeptember

OctoberNovemberDecember9:00JanuaryFebruaryMarch

42.000 -80.00042d 0m 0s -80d 0m 0s

For LocationLocal Standard Time UTC-8 Local Standard Time UTC-8 Local Standard Time (UTC-8)

0

100

200

300

400

500

600

700

800

900

1000

0 4 8 12 16 20 24

January

February

March

April

May

June

July

August

September

October

November

December

Time (hr)

Isolation

(w/m^2)

Average Daily Insolation

Time (hr)

Isolation

(w/m^2)

Average Daily InsolationLocal Standard Time (UTC-8)

From solar insolation design tool


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Assumptions: S.H.G.C. = 0.75 Window size: West (3.3m2) East (60 m2) South (85 m2)

Annual =~ 340,000 ekWh

0 2000 4000 6000 8000 10000 12000

Jan

Feb

mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan Feb mar Apr May Jun Jul Aug Sep Oct Nov Dec

Series1 4636 5442 8131 9403 9717 7724 10542 9583 9915 8384 6323 4866

Monthly solar gain from windows (ekWh)

From solar insolation design tool


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Many potential options

for passive lighting given

the high glazing ratio on

eastern and southernfaades

Solutions:

Eastern FaadeLightshelves and blinds

Southern FaadeLight

shelves, trees and blinds

Passive Lighting and Heating


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Many potential options

for passive lighting given

the high glazing ratio on

eastern and southernfaades

Solutions:

Eastern Faade

Lightshelves and blinds

Southern FaadeLight

shelves, trees and blinds

Passive Lighting and Heating

Light Shelves Retrofit

Cost ($/Light Shelf) 100 $/Light Shelf

Amount of Shelves Required 16

Material Cost ($) 1600 $

Labour Cost ($) 640 $

Total Cost ($) 2240 $

Energy Savings 14% of Lighting Load


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Non-Passive Lighting

LED Lighting vs CFL Lighting

Light Sensors


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Non-Passive Lighting

LED Lighting vs CFL Lighting

Light Sensors

Non-Passive Lighting Retrofits

Cost of LED Bulb ($/Bulb) 25 $/Bulb with 5$ Rebate

Amount of Bulbs Required 275

Cost of Light Sensor ($/Sensor) 63$/Sensor

Sensors Required 7

Labour Cost 960 $

Total Combined Cost ($) 8300 $

Energy Savings LED Bulbs 50% of Lighting Load

Energy Savings Light Sensors 20% of Lighting Load


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Green Roofs

Benefits: Increase R-value of roof, reduce

urban heat island effect.

Intensive vs Extensive


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Green Roofs

Benefits: Increase R-value of roof, reduce

urban heat island effect.

Intensive vs Extensive

Life Cycle Analysis (LCA) Area (m^2) MJ

Study(K.Myrans) 1 2,850

Rooftop 478 1,361,588

Total Savings (MJ/year) 7,170

Payback Period (years) 190

*saving from Green Roofs as Urban Ecosystems (2007)


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Rainwater Capture and Energy

Efficient Fixtures

10,000 Liter Cistern

Replace old toilet

13L/flush with high

efficient toilet4.8L/flush

Replace the old

faucets 8L/min withhigh efficiency faucet

3.2L/min


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Cistern Data

-5

0

5

10

15

20

25

30

35

WaterVolume[m3]

Time

Harvested Water Use Gain (L)Use (L)

Net (L)


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Efficient Fixtures


Replace old toilet

13L/flush with high


Replace the old


3.2L/min


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Efficient Fixtures


Replace old toilet

13L/flush with high


Replace the old


3.2L/min

Water Retrofits

Cost of Cistern + Labour ($) 5380 $

Cost of New Toilet + Labour ($) 520 $

Cost of New Faucets + Labour ($) 210 $

Total Combined Cost ($) 6110 $

Original Water Consumption (m) 282

Combined Water Savings (m) 264

Annual Water Savings 94%

d


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Windows

Prominent feature of the building site.

Currently single glazed 1/2 with aluminumframing.

window m^2 ft^2

West 3.3 11

East 60 194

South 85 274

total =

(N,E,S,W) 148.3 478

the eyes to a building

Double glazed with argon fill vs


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Double glazed with argon fill vs.

Electro-Chromic

http://www.efficientwindows.org/glazing_.cfm?id=6

Study: ( G.Weier & Muneer)

(E. Syrrakou, S.Papaefthimiou*, N.

Skarpentzos and P.

Yianoulis)

Type Argon Electro chromic

Area

(m^2) ekWh ekWh

*Study

Window 1 199 51

West 3 656 169

East 60 11,933 3,067

South 85 16,905 4,344

Total =

(N,E,S,W) 148 29,494 7,580Total savings

(kWh/year) 16,802 22,136

Payback period (years) 1.8 0.3

Double Glazed Argon fill

Double Glaze Electro Chromic

E. Syrrakou, S. Papaefthimiou*, N. Skarpentzos and P. Yianoulis (2005)


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Retrofit Savings Summary

Retrofit

Material

Cost ($)

Number

of Hours

Labour

Cost ($)

Material

+ Labor

Cost ($)

Electricity

gas

Energy

Savings

(kWh)

Fit

Electricity

Energy

Savings

(kWh)

Water

Savings

(m^3)Electrical Photovoltaics 50000 24 0 50000 0 12000 0

LED Lighting 6875 11 880 7755 8805 0 0

Light Shelves 1600 8 640 2240 1761 0 0

Light Sensors 441 1 80 521 1233 0 0

Water Cistern 4100 16 1280 5380 0 0 264

Toilet 200 4 320 520 0 0 0

Faucets 65 1 80 145 0 0 0

Total Savings 63,281 65 3,280 66,561 11,799 12,000 264


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75%

12%

3%1%

8%

1% 0%

Retrofit Breakdown By Cost

Photovoltaics

LED Lighting

Light Shelves

Light Sensors

Cistern

Toilet

Faucets

51%37%

7%5%

Retrofit Breakdown by Electrical Savings

Photovoltaics

LED Lighting

Light Shelves

Light Sensors

Retrofit Breakdown


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Economic Payback

$(60,000)

$(50,000)

$(40,000)

$(30,000)

$(20,000)

$(10,000)

$-

$10,000

$20,000

$30,000

1 2 3 4 5 6 7 8 9 10

Capital Over A 10 Year Time Peroid

Documents

Presentation - Building Science Capstone Project - CIBC Bank Retrofit