the energy modeling improv game: can your team achieve the lowest eui?

The Energy Modeling Improv Game –

Can Your Team Achieve the Lowest EUI?

WHO WE ARE

KIM E SHINNPE, LEED Fel low, CxA, BEMPPRINCIPAL

BRIAN WOLFELEED AP BD+C

ASSOCIATE

THE GAME QUARTER #1 QUARTER #2

QUARTER #3 QUARTER #4

MASSING &

ORIENTATION

BUILDING

ENVELOPE

INTERNAL LOADS FRESH

START

THE BUILDING

• Building Type: Outpatient Clinic –

Business Occupancy

• Location: Houston, TX

• Size: 50,000 gsf

STARTING LINE

ASHRAE 90.1-2007

• 40% WWR

• U(net)-0.75, SHGC-0.25, VT-0.275

• Steel framed walls with R-13 batt

• Roof insulation entirely above deck

R-20

Heating

7%

Receptacles

25%

DHW

2%

Cooling

27%

Lights

26%

Fans

11%

Heat rejection

2%

MASSING &

ORIENTATIONQUARTER #1

SELECT A BUILDING SHAPE:

Courtyard

Rectangle

L Shape

U ShapeH Shape

MASSING &

ORIENTATIONQUARTER #1

SELECT AN ORIENTATION

NRow 1

Row 3

Row 2

L-Shape Courtyard U-Shape Rectangle(100’x250’)

H-Shape

40% WWR H Annual Exposure

Analysis

MASSING &

ORIENTATION QUARTER #1

TEAM B RESULTS

0

100

200

300

400

500

600

Heating Receptacles DHW Cooling Lights Fans Heat rejection

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Starting Line Q1 Q2 Q3 Q4

Q 0 1 2 3 4

EUI (kBtu/ft2) 42 41 39 37 37

Peak Cooling (tons) 118 113 113 109 114

BUILDING

ENVELOPEQUARTER #2

SELECT 3 OF THE FOLLOWING ENVELOPE MODIFICATIONS:

A. ROOF INSULATION

B. EXTERIOR WALL INSULATION

C. WINDOW GLASS TYPE

E. WINDOW EXTERIOR SHADING

3

D. WINDOW AREA

QUARTER #2: Envelope Modification ( select only 3 of the following 5 options ):

A. Roof Insulation

0 3” Polyurethane R-20



3 6.5” Polyisocyanurate R-40

B. Exterior Wall Insulation

0 Steel-framed R-13 batt R-6

1 + 1.5” Polystyrene ci R-5

2 + 2” Polyurethane ci R-12

3 + 3” Polyisocyanurate ci R-20

Window Area

0 40% Window-to-Wall Area




C. Window Glass Type

U-Value SHGC VT

0 0.75 0.25 0.275

1 0.36 0.23 0.47

2 0.50 0.25 0.275

3 0.50 0.66 0.73

4 0.45 0.40 0.50

D. Exterior Shading

Horizontal overhang 0.5 projection factor

A B PF=A/B

40% WWR H June 21 Exposure

Analysis

BUILDING

ENVELOPEQUARTER #2

TEAM B RESULTS

3

0

100

200

300

400

500

600


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Q 0 1 2 3 4

EUI (kBtu/ft2) 42 41 39 37 37


INTERNAL LOADSQUARTER #3

SELECT 2 OF THE FOLLOWING INTERNAL LOAD MODIFICATIONS:

A. 10% Lighting Power Density Reduction

B. 50% Plug Load On Occupancy Sensors

C. Skylights to Achieve 50% Daylight Zone

D. Side Daylight Harvesting

40% WWR L Annual Exposure

Analysis

INTERNAL LOADSQUARTER #3

TEAM B RESULTS

0

100

200

300

400

500

600


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Q 0 1 2 3 4

EUI (kBtu/ft2) 42 41 39 37 37


FRESH

STARTQUARTER #4

MASSING & ORIENTATION

INTERNAL LOADS – 2 of 4

FRESH START

BUILDING SHAPE & ORIENTATION

ROOF INSULATION

EXTERIOR WALL INSULATION

WINDOW GLASS TYPE

DAYLIGHT HARVESTING LIGHTING POWER REDUCTION

SELECT OPTIONS LISTED BELOW:

SKYLIGHTS

BUILDING ENVELOPE – 3 of 5

PLUG LOAD CONTROLS

WINDOW AREA

EXTERIOR SHADING

DOES YOUR DESIGN

MEET CODE?

0

100

200

300

400

500

600


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Starting Line 2015 IECC

40% WWR O Annual Exposure

Analysis

FRESH

STARTQUARTER #4

TEAM B RESULTS

INTERNAL LOADS – 2 of 4

FRESH START

0

100

200

300

400

500

600


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Starting Line Q1 Q2 Q3 Q4 2015 IECC

Q 0 1 2 3 4 2015 IECC

EUI (kBtu/ft2) 42 41 39 37 37 39

Peak Cooling (tons) 118 113 113 109 114 115

THE END

KIM [email protected]

BRIAN [email protected]

the energy modeling improv game: can your team achieve the lowest eui?

Environment