EMC Decision Flow Chart.pdf
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- GS-10P-09-LT-C-0052
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The ECM Decision Flow Chart is being provided FYI to communicate the potential scope of the project and the decisions currently being evaluated.
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EGWW ECM Decision Flow Chart 8 June 2009
Optimize Wall and Glazing
- Specific to each Facade - N, E, S, W
- Establish: U-value, % of glazing, solar heat gain coefficient (SHGC), visible light transmittance (VLT)
Envelope Measures
Exterior Shading
- Specific to each Facade - E, S, W
- Operable vs. Fixed
- Validate Double Wall
- Validate Vegetated Fins
Optimize Daylighting Specific to each Facade - N, E, S, W
Select Performance Requirements for each Facade
Internal Loads
Lighting
- Advanced lighting controls, dimming, occ sensors, individual control
- Luminarie, lamp and ballast systems
Select lighting Select lighting controls
Establish Internal Loads
Roof Design
- Cool or Vegetated Roof - R-50 Min.
- Coordinate with roof equipment and solar thermal collection
Establish metrics for:
- Number of occupants
- Plug loads
- Equipment loads
- Hours of opperation
Establish Tenant Standards In Leasing Agreements
- Plug loads
- Equipment loads
- Monitor and control loads
Natural Ventilation
- Operable windows, louvers or vents
- Central chimney for heat exchange
Hydronic Heating and Cooling
- Chilled Beams
- Radiant Panels
Dedicated Outdoor Air Supply (DOAS)
Mechanical Systems - Distribution
Air System for Heating and Cooling Update 2006 Design with new metrics developed through envelop and internal load studies
Select Mechanical System Distribution
Options for distribution of heating and cooling
- Distributed fan coils
- Outside air from facade
- Displacement vent.
Options for sourcing and tempering outside air (DOAS)
- Specific to each Facade - N, E, S, W
- Evaporative cooling air handlers
- Heat recovery w/ exhaust air
System Options
- Ground water heat pumps
- Distributed heat pumps
- Chiller / Boiler / Cooling Tower:
Optimize pumps, water temp, operation
Mechanical Systems - Production of Heating and Cooling
Other Strategies
- Heat recovery
- Air to water heat pumps
Select Mechanical System Production
Options
- Adsorption chillers using waste heat
- Outdoor water feature used for evaporative or convective water cooling
- Ice storage systems
Renewable Options
- Photovoltaic solar collection to reduce overall electrical load
On-Site Renewable Energy Generation
Determine extent of PV
Domestic Hot Water System
- Point-of-use water heaters
- Tempered water w/ heat recovery
- Solar thermal
- Ground water heat pump
Alternate Systems
- Solar Thermal for building water
- Micro-hydro turbines in roof drains
Primary ECM's Development ECM's
Baseline ECM's
ECM Measures Recommended for Recovery Design Phase
Final Energy Model LCCA Test (40 year)
Integrate with cost estimate
Enhanced Recovery Design for Project Team GSA - CMc - A/E
Primary ECM's
Development ECM's
Baseline ECM's
Primary Energy Conservation Measures to be evaluated for incorporation into final recovery design. Design work to precede selection of CMc.
Development Energy Conservation Measures to be evaluated through the course of the design process.
Baseline Energy Conservation Measures to be evaluated for incorporation into final recovery design as required by the Office of the Chief Architect (OCA)
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