FDA Building One - Pennsylvania State University...Pahwa || FDA Building One Integrate Various...

FDA Building One

R. Andy Pahwa

Faculty Advisor: Jim Freihaut/Dustin Eplee

• Project Background

• Existing Mechanical Summary

• Design Objectives

• Mech: Photovoltaic Impact

• CM: Power Storage

• Elec: DC Distribution

• Final Recommendations

Project Background Agenda

Building One

Pahwa || FDA Building One

Project Background

Agenda

Originally the headquarters of the

Naval Surface Warfare Center

Project Background

Agenda

Function Type: Office Building

Size (GSF): 102,000 SF

Number of Stories: 4 Stories above Grade +

Penthouse

Date of Construction: 9/25/2007 – 11/15/2008

Contract Amount: $36,444,302

Project Background

Agenda

Construction

Overview:

-Modernization

-Portioned – Security

Pavilion, Atrium

Connector Link,

Existing Building,

Façade Restoration,

Site Modification

-Excavations of Security

Pavilion & Atrium

Connector simultaneous

with Structural

Modifications

Structural Overview:

-Spread Footings

-New Boring for

additions

-Existing Structure

Reinforced

Electrical Overview:

-13.8 kV, 3-Phase Power

-480/277V Dry Type

Transformer

-UPS for emergency

Back-Up

Lighting Overview:

-Fluorescent T5’s and

CFL’s

-Photocell Dimming,

Occupancy Sensors

-use of Day-lighting

Security & Fire

Protection Overview:

-Card Access / ID

Clearance

-CCTV’s

-IR Motion Detectors

-Video Intercom Stations

-Wet Pipe Sprinkler

-recessed pendant

fixtures

Agenda

Existing Mechanical

Outside AHU:

-5300 CFM

-100% OA

-Energy Recovery Wheel

Serves:

Perimeter FCU’s

Some VV Boxes w/

ReHeat in Interior

AHU - 1:

-19,000 CFM

-30% OA

Serves:

Perimeter CV

Dual Duct TU’s in

Conference Rooms

VV Boxes w/

ReHeat in Core

AHU - 2:

-7,350 CFM

-Min OA by OAHU

Serves:

Security Pavilion,

Kept at Constant

Volume, No

Associated return

OAHU AHU-1

Penthouse

Security Pavilion

Agenda

Existing Mechanical

Computer Room AC-1:

-5,250 CFM

-Temp Set: 61° F

Serves:

Electrical Room

OAHU AHU-1

Penthouse

Security Pavilion

Computer Room AC-2:

-6,050 CFM

-Temp Set: 55° F

Serves:

Telecom Room

Computer Room AC-3:

-2,800 CFM

-Temp Set: 55° F

Serves:

LAN Rooms

CRAC-3

CRAC-2 CRAC-1

Agenda

Existing Mechanical

Central Utility Plant:

-20 MW CoGen

-5.6 MW Dual Fuel

Engine (Natural Gas &

Diesel)

-Three 4.5MW Natural

Gas Turbines

-Two 1130-ton

Absorption Chillers

-Two 1130-Ton &

Three 1980-Ton Electric

Chillers

-Three 10MMBtu/Hr Hot

water boilers

Delivers:

-13.8 KV 3-Phase

Electricity

-200F Hot water

-39F Chilled Water

Total plant Efficiency: 70%

Agenda

Existing Mechanical

LEED Features:

-Heavy reuse of Raw materials – Core, Shell, Public

Area finishes, Restoration of Original Brick &

Limestone Exterior

-Low VOC Materials

-Operable, Insulated, Low-E Steel Windows, Integrated

w/ HVAC System and Controls

-High Solar reflective Index Roof

-Native, Low water Plants

-Shuttle Service Provided, dedicated Hybrid/Carpool

parking

9 3 2 Sustainable Sites 14 Points

2 2 1 Water Efficiency 5 Points

12 1 2 Energy & Atmosphere 17 Points

4 2 7 Materials & Resources 13 Points

14 0 1 Indoor Environmental Quality 15 Points

2 0 3 Innovation & Design Process 5 Points

43 8 16 Project Totals 69 Points

Notes:

-Designed to LEED Silver Standard,

Awarded LEED Gold in January 2010

-Achieved 36% energy Cost savings below

ASHRAE 90.1 baseline

Design Objectives

-Reduce Demand on Central Utility Plant

-Find efficiencies with Least Impact on Design

-Push the boundary with Available Technology

Agenda

Renewable

Energy

Storage

Direct Use of

Raw Energy

Original

System

Photovoltaic System

-Current Demand

1,000 MM BTU per month

109,000 kwh per month

Agenda

-PV Sizing

Based on 24,000 SF Roof area Available

Target: ~40% of Electricity Demand

Variation:

Remove Inverter

Impact:

Efficiency by 8%

Cost by 10%

Photovoltaic System

-Current Cost of Utilities

$10,000-$14,000 per month depending on fuel

$15,000 if electricity were to be purchased

Agenda

-PV System Cost

$1,225,000 w/ Initial Tax Credits

-With Depreciation, Continuous Govt. Subsidy Credits

and assumed 4% increase in utility cost

Breakeven within 5 Years

Average utility Savings of $8,000 per Month

SunPower Corp T5 Roof Tile

with E19 Panel

(19% Efficiency)

Solar Panel +Frame + Mounting System =

One Pre-Engineered Unit

Quick installation, No Roof Penetration

needed, 30 Year Life Guarantee, Flexibility

and Durability Unparalleled

Thin Film Battery

Eliminated inverter from PV System, Increased

efficiency, Reduced Up Front Cost of entire System

and O&M over Life of the system

Draw Electricity from Storage instead of directly from

PV system to Reduce Voltage spikes from PV Generation

Embed Thin Film Battery Into Wall Insulation

Agenda

Advantages:

-2x Energy Density than Commercial

Supercapacitors

-High Cycle Rate at High Voltage

-Custom Pattern a.k.a. Cut to Fit availability

-Long life Cycle (>>30,000 Cycles) with high

storage efficiency

-BioDegradable

Disadvantages:

-very New Technology

-Long Lead Time

-Willingness of Subcontractor to Install

-Up Front Cost

Thin Film Battery Property of Product keep R-Values negligible

Available in Rolls, easy transportation to Site

Install between Insulation and Drywall

Floats Built Into Schedule – 13-22 Days per Wing

(North/South) per Floor

To Line the entire building : $2,160,000

For just PV System Capacity: $263,000

Cost can be Amortized into PV System

No. of times of Replacement of traditional Batteries

alone Could Justify the Cost

$263,000 vs. $540,000

over lifetime of system

Agenda

Energy

Storage

Direct Use of

Raw Energy

Original

System

Renewable

Energy

Direct Current Distribution

Existing DC Based Available Systems:

Electronic Ballasts

Energy Management, Control System

Adjustable Speed Drives for HVAC & Pumping

Computer, IT Equipment

Portable, Personal Electronics

Inefficient power Conversions are Needed from the

Building’s Fixed AC Infrastructure to Power these DC

Devices…

Agenda

Using DC ‘Micro Grid’

-Safe 24VDC at Device Interface

-Enables Selective & Scalable Use

-Backward & Forward Compatible

-Easily Installed by Customary Trades

-Promotes Alternative Energy with Higher System

Efficiency

Agenda

Integrate Various Sources of

Energy on Common Distribution Bus

Simplified Direct use of DC

Eliminate Multiple DC-AC and AC-DC

conversion Losses

Evaluating Lighting System on DC in FDA Building One

Total Cost as Installed: $835,000

DC Systems (+25%): $1,045,000

Increased Efficiency achieved with DC: +11%

Annual Utility Saving: $13,000

Simple Payback: 16 years

Agenda

Case Study: USGBC Headquarters

-Continuous high light reflectivity acoustical ceiling

-DC Multi-Channel Power Servers

-Fluorescent Lighting w/ DC Ballasts

-Wired Controls, Touch Panel Interface

-Daylight, Occupancy, Dimming Function

LEED Platinum for Commercial Interiors

Agenda

Mechanical Impact of DC Distribution System

Pumps on Direct Current:

-Reduced Head Loss, 15% More Efficient

-Direct Comparison showed 10% cost saving by

sizing down primary Pumps

-Leaving Standby pumps as-Is

-Immediate Realization of $70,000 Saving

Energy

Storage

Direct Use of

Raw Energy

Original

System

Renewable

Energy

Conclusion

• Conclusion

Agenda

Photovoltaic System Practical, Cost Effective

Thin Film Battery Sustainable, High Cost

DC Distribution Worthwhile, Cost Justified

Thank You

Questions?

• Conclusion

Agenda

• Alternative Descriptions

• Photovoltaic Impact

• Power Storage

• DC Distribution Systems

• Energy Analysis & Payback

FDA Building One Agenda

FDA Building One - Pennsylvania State University...Pahwa || FDA Building One Integrate Various...

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