Energy Efficient Technologies Screening Process

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Energy Efficient Technologies Screening Process

• Recent ECM Simulations for Annex 46 Archetypes

Dan Fisher, Oklahoma State University Jon Hand,
University of Stratheclyde
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Overview

• The archetypes
• Selected US Simulation Results
• Extending Simulation to Annex 46 Participant
  Countries

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The Archetypes

• Industrial Building
• Office
• Barracks

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Industrial Model
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Industrial Model
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US Construction

• 6 inch concrete walls (pre-cast)
• 2 inch built-up roof
• Uninsulated slab floor
• 10 glazing in process area
• 25 glazing in office area
• Four 12 x 15 doors in shipping area

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US HVAC Controls
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US Internal Gains
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Office Model
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Office Model
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Office Specifications
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Barracks Zoning
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Barracks
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Barracks Specifications
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Internal Heat Gains

• Office
• 1 W/ft2
• Occupied from 800 am 500 pm
• Barracks
• 0.7 W/ft2
• Occupied from 500 pm 800 am

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Facade

• Office
• Double pane windows 32 of façade area
• Brick/block construction
• Barracks
• Double Pane windows 10 of façade area
• Stick-frame construction

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HVAC System

• Office
• VAV with CW cooling and HW reheat
• Cooling 75 heating 72
• Barracks
• CV with DX cooling and gas reheat
• Cooling 75 Heating 72

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Office HVAC System
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Barracks HVAC System
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Initial Parametric Study

• Industrial building model
• first 20 Energy conservation measures and
  technologies.
• 12 US climates
• 3 energy cost levels
• Office and barracks models
• first 40 energy conservation measures and
  technologies
• 12 climates
• 3 energy cost levels

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Simulation Results

• Diagnostic Results
• Energy Summary Reports
• Economic Reports

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Diagnostic Results

• Zone temperatures
• Zone loads
• Outside air flow rates

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Diagnostic Results Barracks
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Diagnostic ResultsBarracks
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Diagnostic Results Office
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Diagnostic Results Office
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Diagnostic Results Office
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Standard Results

• Total Estimated Annual Energy Use
• by building type
• by climate
• Estimated Annual Energy Cost
• by energy type
• Simple Payback Calculation
• based on estimated cost of technology

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Total Annual Estimated Energy Savings

• Solar wall industrial building

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Annual Estimated Energy Cost

• Gas energy solar wall industrial

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Simple Payback Calculation

• Attic Insulation Barracks

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Extending Results to Annex Countries

• Customize the building Envelope
• wall/roof/window constructions
• window area
• Customize the HVAC system
• concept/configuration
• controls
• Compile weather files
• one city for each climate zone
• Compile energy price data
• high/low/avg. for each climate zone

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Country/Building Specific Simulation Driver

• A low tech approach
• combination of batch files and fortran
  executables
• start with country/building specific base-line
  model
• Parametric run generator. For each ECM
• creates input file
• runs the simulation
• saves diagnostic data
• writes standard output to a file

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Country/Building Specific Spreadsheet

• Standard format output from simulation
• VBA data analysis Code
• Country/Climate Zone specific Energy Costs

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Project Status

• 12 US Climate Zones
• 20 Industrial ECMS complete
• 15 Office/Barracks ECMs complete
• 1 or 2 Climate Zones from Germany, Uk, Canada,
  Denmark, Finland, Italy, France
• 5 office/Barracks ECMsfirst draft

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Next Steps

• Tune-up Envelope Specifications
• Modify HVAC system configuration/controls
• Climate-zone specific energy cost data