ARCH 551 Facade Final

Page 1

Daylighting - 9:00 am

GOALS: Achieve LEED IEQ credit 8.1 - 75% Daylighting (min 10 FC) while designing to Passive House standards for window:wall ratio Meet Passive House standards for window and wall construction

165 Max FC 8 min FC 33 avg FC

90.7%

231 Max FC 12 min FC 46 avg FC

annual Savings

1.2 2 1

26%

HEATING

1.8 0.8 1.6 0.6 1.4 0.4 1.2 0.2 ASHRAE BASELINE

PROPOSED

ASHRAE BASELINE

18:00

20:00

22:00

00:00

Temperature (°F)

5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 00:00

HEATING

02:00

04:00

06:00

08:00

10:00

12:00

14:00

16:00

18:00

20:00

22:00

00:00

22:00

00:00

Dec

Jan

20:00

22:00

00:00

20:00

22:00

00:00

Date: Mon 29/Dec

PROPOSED

0.2

COOLING

0.15 0.1

0.2 0.05 0.15

COOLING annual Savings ASHRAE BASELINE

0.1

88.9% above leed threshold (10 fc)

PROPOSED

2400 2200 2000 1800 1600

0

ASHRAE BASELINE

1400 1200 1000 800 600 400

peak reduction

200 0 00:00

PROPOSED

06:00

08:00

10:00

12:00

14:00

16:00

18:00

20:00

Cooling plant sensible load: Passive wall/Passive window27 (551 facade.aps)

Combined (heating + Cooling) COOLING HEATING

50%

annual Savings COOLING HEATING

5000 4000 3000 2000 1000 0 -1000 -2000 -3000

0 1

ASHRAE BASELINE

PROPOSED

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Date: Wed 01/Jan to Wed 31/Dec Space conditioning sensible: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

0.5

Space conditioning sensible: Passive wall/Passive window27 (551 facade.aps)

0

.671 = .3613 = .1786 = .2392

04:00

Date: Wed 14/May

0.5 1.5

LBNL Window Software

02:00

Cooling plant sensible load: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

1 2

rhino model - Exterior Perspective

99% 86%

0.25

1.5 2.5

drywall

16:00

0.25

2

ASHRAE BASELINE SOLAR GAIN

PROPOSED

4500 4000

=

3500

Solar Gain 3000 2500 4500 2000 4000 1500 3500 1000 3000 500 2500 0 2000

Assumes 15% Frame:Glazing Ratio

1500

SOLAR GAIN

60% 50%

annual Savings ASHRAE BASELINE

PROPOSED

1000

5000 4500 4000 3500

Gain (Btu/h)

Lightboxes

14:00

Heating plant sensible load: Passive wall/Passive window27 (551 facade.aps)

0

2.5

tvis(net) shgc(net) u value(COG) u value(net)

12:00

Heating plant sensible load: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

0.05

Corner Detail - nts

10:00

Cooling set point: Passive wall/Passive window27 (551 facade.aps)

0.2

Cooling

Daylighting - 3:00 pm

u value = .0211

08:00

Cooling set point: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

0.4

0

163 Max FC 8 min FC 33 avg FC

06:00

Heating set point: Passive wall/Passive window27 (551 facade.aps)

0.6

100%

04:00

Date: Mon 27/Jan

peak reduction

1 0 0.8

above leed threshold (10 fc)

6x6 Post

44%

2 1.8 1.4

Daylighting -12:00 pm

02:00

Heating

1.6

above leed threshold (10 fc)

rainscreen waterproofing 6.5” SIPs Panel 5.5” mineral wool batt vapor barrier 0.5” drywall (x2)

Load reductions

86 84 82 80 78 76 74 72 70 68 66 64 62 60 58 00:00

Heating set point: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

Load (Btu/h)

INSTRUCTOR: Matthew Herman (Buro Happold)

office setpoints: summer 75, winter 68

Load (Btu/h)

Daylighting

PROJECT STATEMENT: Design a 10’ x 15’ office space to improve energy savings over the current ASHRAE 90.1 baseline.

Lightbox

Gain (Btu/h)

Lightbox // spencer Olsufka

0

ASHRAE BASELINE

2500 2000 1500

peak reduction

500

3000

1000 500 0 00:00

PROPOSED

02:00

04:00

06:00

08:00

10:00

12:00

14:00

16:00

18:00

Date: Wed 12/Mar Solar gain: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps) Solar gain: Passive wall/Passive window27 (551 facade.aps)

Thermally Broken Frame External Conduction Gain

argon gas

6000

Optifloat Clear (Pilkington)

5000

3000

Optifloat Clear (Pilkington)

600 400

EXTERNAL CONDUCTION GAIN

2000

peak reduction

1000

Gain

200

annual Savings

4000

argon gas

68% 72%

800

0

Gain (Btu/h)

ComfortSelect40 on Clear (AGC)

-200 -400 -600 -800 -1000 -1200 -1400

Loss

-1600

0

ASHRAE BASELINE

PROPOSED

-1800 00:00

02:00

04:00

06:00

08:00

10:00

12:00

14:00

16:00

18:00

Date: Wed 14/May External conduction gain: BASELINE - ASHRAE wall/ASHRAE window40 (551 facade.aps)

sips: Continuous Insulation Outside Framing

glazing Detail - nts

Wall Section - nts

Window:Wall = .27

External conduction gain: Passive wall/Passive window27 (551 facade.aps)

all energy calculations performed with ies-ve 2013


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