fusion of design and performance for high ......northeastern university, interdisciplinary science...

FUSION OF DESIGN AND PERFORMANCE FOR HIGH PERFORMANCE FAÇADES

ZAK WORLD OF FAÇADES CONFERENCE

November 21, 2019

FIRM FACTS

Single Office Since 1932

• 170+ Person Studio

FUSION of Design + Performance

• Science & Healthcare

2019 AIA Architecture Firm of the Year

INTEGRATED DESIGN

7

79

Years of research

practice

Different staff

members involved in

research

Research projects26

RESEARCH

NATURAL VENTILATION IN HEALTHCARE

Window Configuration - Ventilation

EMBODIED CARBON IN FAÇADE SYSTEMS

THERMAL BRIDGING

Baseline R-Value: 20.4

Observed R-Value: 5.8

-72%

THERMAL BRIDGING

Baseline R-Value: 21.2

Simulated R-Value: 15.1-24%

You should be able to put your pen down and trace your insulative barrier around your whole building (at all scales) without having to pick up your pen. If you have to pick up your pen or something conductive is crossing through that barrier, you have a thermal bridge.

To minimize the impact of it:

1. Break the heat flow with thermal breaks

2. Minimize the penetration as much as possible (IE discontinuous elements)

3. Where something penetrates your insulative barrier, use a material that has a lower conductance (IE stainless steel rather than aluminum)

GLAZING & WINTER COMFORT

Radiant Discomfort Downdraft Discomfort

GLAZING & WINTER COMFORT

Cost/ft2 Window

Upgrade Double to Triple Pane $5.47

Add Perimeter Heat to Double Pane $53.20

GLAZING & WINTER COMFORT

Glazing and Winter Comfort Tool

AIA-TAP Innovation Award, 2016

Map shows global density of tool users

IMPACT AND

REACH

Countries outside

US has accessed

the tool

46

77

States have

accessed the tool

GLAZING & SUMMER COMFORT

FAÇADES & ENERGY PERFORMANCE

newbuildings.org/

http://newbuildings.org/resource/sensitivity-analysis-comparing-impact-design-operation-and-tenant-behavior-building-energy-performan/

INTEGRATION OF ENVELOPE & HVAC SYSTEM

INTEGRATION OF ENVELOPE & HVAC SYSTEMS

8’ CHILLED BEAM CAPACITY

8’ CHILLED BEAM CAPACITY

I2SL | SESSION A2October 16, 2017

Northeastern University, Interdisciplinary Science and Engineering Complex 2019 AIA COTE TOP TEN AWARD I Harleston Parker Medal, 2018

COMPETITION CONCEPT

THERMAL BRIDGING

Project Detail R-23.5

Typical Detail R-4.1

THERMAL BRIDGING

COST EFFECTIVE PERFORMANCE

Cost/ft2 Window

Upgrade Double to Triple Pane $5.47

Add Perimeter Heat to Double Pane $53.20

U-value 0.40 U-value 0.23

Central South University – Fifth XiangYa Hospital 2015 AIA National Healthcare Design Award, Unbuilt

NATURAL VENTILATION

VISUAL & THERMAL COMFORT

DAYLIGHT

VIEWS

OPTIMIZING VIEWS

OPTIMIZATION OF MATERIALS

10 cm 30 cm 50 cm 70 cm “smart” 10 cm 30 cm 50 cm 70 cm “smart” 10 cm 30 cm 50 cm 70 cm “smart”

HVAC System Size / CostShade Material Quantity Window Box Comfort

OPTIMIZATION OF MATERIALS

9% Reduction in HVAC

system size / cost

40% Increase hours of visual

& thermal comfort

36% Reduction in material

quantity for shade

100%of required energy

generated cleanly on site

97%of annual non-potable water

demand supplied by on-site

wastewater treatment plant

60%of the year natural

ventilation for patient rooms

Amherst College, New Science Center 2019 AIA COTE TOP TEN AWARD

77%Reduction inenergy use

Brick Masonry Weathering Steel Fins Custom Framed Curtianwall

DAYLIGHTOptimizing Glazing for Daylight Harvesting

IMPROVED THERMAL PERFORMANCEMinimizing Thermal Bridges

R-20

+50%

R-13

56% VLT

15% VLR (Outside)

Low Iron Glass

Neutral Color Coatings

Anti-Reflective Glass

0.16 COG U-Value

0.25 Assembly

Triple Insulating Glass

Coated Polyester

Suspended Films

Gas-filled Interspace

Second low-e (surf #4)

Warm edge spacer

0.28 SHGC

XXX

Low-e (surf #2)

Ceramic Frit

Interior Shading

Systems

IGU SELECTION

56% VLT

15% VLR (Outside)

Low Iron Glass

Neutral Color Coatings

Anti-Reflective Glass

0.16 COG U-Value

0.25 Assembly

Triple Insulating Glass

Coated Polyester

Suspended Films

Gas-filled Interspace

Second low-e (surf #4)

Warm edge spacer

0.28 SHGC

XXX

Low-e (surf #2)

Ceramic Frit

Interior Shading

Systems

IGU SELECTION

0.35 SHGC

22%Increase in

Peak Cooling

Load

62%

(3.9)

40%

(2.5)

11% (0.7)

32% (2.0)

29% (1.8)

48% (3.0)

46% (2.9)

47% (2.9)

33% (2.0)

29% (1.8)

22% (1.4)

17% (1.1)

8% (0.5)

11% (0.7)

32% (2.0)

29% (1.8)

100%

(6.9)

30% (2.1)

63% (4.3)

71% (4.9)

86% (5.9)

0% (0)

0% (0)

0% (0)

Shade Deployment: Glare + Solar Load

- 6%Decrease in

Peak Cooling

Load

Interior Shades

Solar Chimney

Radiant Floors

Nighttime Flush

Radiant Panels

Displacement Ventilation

PERFORMANCE CONCEPTSSustainable Opportunities

PERFORMANCE CONCEPTSSustainable Opportunities

Mostly Convective System

PERFORMANCE CONCEPTSSustainable Opportunities

Less energy than

building replacement80%Of floor area with direct

views to the outdoors72%

PAYETTE LABS AVERAGE ENERGY USE INTENSITY

DESIGN RECOGNITION

National Recognition

Regional Recognition

Specialty Awards