Development of ASHRAEs Advanced Energy Design Guide
for Small Office Buildings
Development of ASHRAEDevelopment of ASHRAEs s Advanced Energy Design GuideAdvanced Energy Design Guide
for Small Office Buildingsfor Small Office BuildingsBing Liu, P.E., LEED A.P.
Senior Research EngineerPacific Northwest National Laboratory
Presentation to EFCOG Energy Efficiency Working GroupJuly 13, 2006
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Partners in the Development of the GuidePartners in the Development of the GuidePartners in the Development of the Guide
American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE)
The American Institute of Architects (AIA)
Illuminating Engineering Society of North America (IESNA)
New Building Institute (NBI) U.S. Department of Energy (DOE)
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Development Principles(project committee marching orders)
Development PrinciplesDevelopment Principles(project committee marching orders)(project committee marching orders)
Tightly controlled scope and purpose (up to 20,000 ft, unitary HVAC equipment)Provide a way, but not the only way of achieving 30% energy savings relative to ASHRAE Standard 90.1-1999Use energy savings as the independent variable vs. cost effectivenessUse practical, off-the-shelf technologyProduce a useful document in a timely mannerStay focused on the target market
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Whats in the Guide?WhatWhats in the Guide?s in the Guide?
Easy to follow climate zones for your geographic region Recommendations for achieving energy efficiency credits for LEED Bonus strategies for saving energy outside the building Ways to retrofit existing buildings and renovations
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Use Climate Zone Map to Find Your Location
Note: Consistent climate zones used for ASHRAE Standards 90.1, 90.2 and IECC
Recommendations by ClimateRecommendations by Climate
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Confirm Your Specific Climate ZoneConfirm Your Specific Climate ZoneConfirm Your Specific Climate Zone
Climate zone highlighted on U.S. map in consistent colorStates covered by the climate zone are listed below the mapSpecific counties within the climate zone are listed for reference (no counties are split)
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AEDG Recommendation TableAEDG Recommendation TableAEDG Recommendation Table
Energy-saving recommendations for each climate zone contained on single pageTables color-coded to mapsPrescriptive recommendations help to achieve energy savings without costly calculations or analysisRecommendations address building envelope, lighting, HVAC equipment, HVAC systems and service water heatingRecommendations must be used with underlying code or standard (see footnote)Note references to how-tosection
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Highlights of AEDG RecommendationsHighlights of AEDG RecommendationsHighlights of AEDG RecommendationsEnvelopez Enhanced insulationz WWR limited to 40%z Window orientation and exterior sun control
Interior Lightingz Lighting power density of 0.9 W/ft
z Daylight controls for WWR >25%z Occupancy sensors
HVAC Equipment and Systemsz Higher efficiency unitary equipment varies with climate
zonez Motorized outside air damper controlz Demand controlled ventilationz Lower duct friction rate (design them better)
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Example Designs for Each Climate ZoneExample Designs for Each Climate ZoneExample Designs for Each Climate Zone
Selected from award winning designs by architectsDemonstrates flexibility offered in achieving advanced energy savings levels
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How-to Guidance - EnvelopeHowHow--toto Guidance Guidance -- EnvelopeEnvelope
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Small Office Building PrototypesSmall Office Building PrototypesSmall Office Building Prototypes
20,000 sf Square floor planMasonry constructionUnheated slab30% WWR3 tenantsFive-zone unitary equip.
5,000 sf Square floor planFrame constructionUnheated slab20% WWRSingle tenantSingle-zone unitary equip.
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30% Goal Over Standard 90.1-1999
Potential Energy Savings from the Guide
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Lighting Cooling Heating Fans SWH
Average Savings Over the 15 Climate Cities = 38%
Comparison of Energy Savings20,000 sf Office Building
35%38%
43%
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What is NextWhat is NextWhat is NextSmall Office Buildings is the first of the 30% Energy Savings Guide Series. This first guide was completed within a year and published in late 2004. The publication of the Guide was highly successful and the guide has won three awards.
Small Retail Buildings is the 2nd guide which was completed in June 2006 and is currently under the publishing process.
K-12 Schools will be launched this fall.
50% Energy Savings Guide is under scoping study now.
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If You Have A Question or TwoIf You Have A Question or TwoIf You Have A Question or Two
Feel Free to Contact:Bing Liu:[email protected](509) 375-3710
To order the Guide, go to http://resourcecenter.ashrae.org/store/ashrae/
