Designing for Better Energy Outcomes - c.ymcdn.com Pipe Decoupled Ventilation and Conditioning WATER PIPE AIR DUCT. ... •Detailed Analysis of Meter Data

DESIGNING FOR BETTER

ENERGY OUTCOMES

Vikram Sami LEED BD+C, BEMP

Efficiency v/s Consumption

1903 Model T

15 mpg

2003 Explorer

17 mpg

Federal Center South

Duwamish River Bed

The oxbow is one of the

remaining historic features

of the industrialized

Duwamish River

HistoricToday

Site

Federal Center South B1202 Redevelopment

1202 1201

SITE

Key Design Objectives

• Reflect USACE mission

• Optimize site amenities

• Solidify site and soil conditions

• Assure air quality

• Create a modern 21st century workplace

• Achieve 30% energy reduction

• Re-use 1202 materials

“The Oxbow”

Thomas Cole, 1836

High Performance Green Building

• LEED Gold minimum

• Employ integrated approach to meet sustainability goals

• 30% reduction in energy usage compared to ASHRAE 90.1-2007

• Install advanced meters for electricity, natural gas, and water

• Install solar thermal hot water system (integrated approach determined not cost effective)

• Plan for on-site renewable energy systems

• Reduce indoor potable water use by at least 20%

• Reduce outdoor potable water use by at least 50%

• Manage 95th percentile rain event onsite through infiltration

• Provide occupancy and daylight sensors

• Pre-occupancy flush-out

• Salvage, recycle, or reuse at least 50% of construction and demolition waste

Overall Energy Goals

Competition90.1-2007Baseline

Competition Goal

[27.6 with PV]

The Collaborative Workplace

Flexibility. Efficiency. Daylight.

Unified. Open.

Interaction. Collaboration.

Central and convenient.

No “Silos”.

Optimize Mechanical Systems

Optimize Structural

Builds Community

Optimizing Workplace for Daylight & Views

Original Workplace

Conditions

21st Century Workplace

Daylight Performance & Orientation

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

1 : 327

Flow Cross Section Ratio

Air Duct

Water Pipe

1 : 3271 : 327

Flow Cross Section Ratio

Air Duct

Water Pipe

Decoupled Ventilation and Conditioning

AIR DUCTWATER PIPE

Underfloor Concepts / IAQ

Thermal Storage: Phase Change Material

COOLING TOWERS

PHASE

CHANGE

TANK

HEAT PUMPS

BOILERS

Geotechnical Design

Energy Model Assumptions – Weather v/s Whether

Energy Model Assumptions – Weather v/s Whether

Tracking EUI Performance Federal Center South

• Detailed Analysis of Meter Data

• Plug load much greater than model

• Lighting energy is about right

• Heating and cooling energy is much greater than model

• Pump energy is much greater than model

25.7Metered in 2013

Adjusted for Plug loads and weather

Normalized Performance for 2013

Team Dynamics

• ZGF, Sellen, WSP, KPFF - It takes a village.

• Trust

• Letting ideas marinate

• Communication – with team and client.

• Establishing Value Chain.

Vikram Sami LEED BD+C, BEMP

[email protected]