Validation of WINDOW 6 and THERM 6 for Use in Determining the Solar Heat Gain Coefficients and UFact

1
Validation of WINDOW 6 and THERM 6 for Use in
Determining the Solar Heat Gain Coefficients and
U-Factors of Complex Glazing Systems Research
Project

• NFRC Project Number 07-101-RP
• NFRC 2008 Fall Membership Meeting
• William C. duPont/Sunergy Consulting
• W. Ross McCluney/Sun Pine Consulting

2
Background

• WINDOW 6 and THERM 6 are currently under
  development with new capabilities
• Calculate the SHGC and U-Factor of
• Woven Shades,
• Venetian Blinds, and
• Fritted Glass
• Shading Systems Can Be Located
• Indoor
• Between Glazing
• Outdoor

3
Project Objectives

• Perform and coordinate the data collection,
  research, and testing to validate the new
  features within WINDOW 6 and THERM 6

4
Project Tasks and Deliverables

• Task 1 Literature Search (3 Months)
• Compile and Evaluate Existing SHGC and U-Factor
  Test Results
• Describe Existing Methods of Calculating SHGC and
  U-Factors
• Task 2 Perform Tests and Simulations (7 Months)
• Identify and Procure Test Specimens
• Perform SHGC and U-Factor Tests
• Perform SHGC and U-Factor Simulations
• Task 3 Compare and Evaluate Results (2 Months)
• Literature Search
• SHGC and U-Factor Test Results
• Task 4 Status Reports Papers (3 Months)

5
Task 1 Overview

• Existing SHGC and U-Factor Test Results
• Manufacturer Product Test Results
• Pella (of 20 sets of tests, 8 sets can be
  simulated)
• Hunter Douglas (?)
• ASHRAE Papers and Reports
• Queens University
• Tait Solar (RP 947 6-10 Tests Center-of-Glass)
• University of Waterloo (RP 1131)
• NFRC Research Projects
• Black Blind Tilted (6 Tests at 3 Laboratories)
• Glass Block
• 7 Glazings with 9 Shades (48 Tests
  Center-of-Glass)
• European Research Projects
• Lund University

6
Task 1 Overview(Continued)

• Existing SHGC and U-Factor Calculation
  Methodologies
• ASHRAE Methods
• ASHRAE 1311-RP
• Existing SHGC Load Calculation Method
• European Methods
• ISO 15099
• EN 14500 EN 14501

7
Task 2a Overview

• Revision of Test Specimen List (In Collaboration
  with the PMTG)
• 26 SHGC Tests
• 20 U-Factor Tests
• Revised Test Specimen List
• 6 Simple Glazing System Tests
• 4 Reference Glazing
• 2 Fritted Glazing Samples (High Low Density)
• 8 Inside Shading System Tests
• 4 Woven Blinds (Loose Dense Weave, Tight
  Loose Fit)
• 2 Venetian Blinds (Open, 45?, Closed, High Low
  Absorptance)
• 10 Between-Glazing Shading System Tests
• 2 Woven Blinds
• 3 Venetian Blinds (Open, 45?, Closed, Thin
  Thick Pane Spacing, High Low Absorptance)
• 1 Retracted (Venetian Blind)
• 2 Outside Shading System Tests
• 2 Sunscreen (Loose and Dense Weave, High Low
  Absorptance)

8
Task 2b Overview(Continued)

• Procure Test Specimens
• Donation of Windows, Glazing and Shades
• Marvin Windows and Doors
• Pella Corporation
• Viracon
• Glen Raven Custom Fabrics
• Phifer Wire
• Hunter Douglas
• Need to Identify Glazing Layer with Properties of
  Shade

9
Task 2b Overview(Continued)

• Metal Frame Window
• Similar to Proposed Base Case Metal Frame Window
• Designed by PI using common components
• Built by ATI
• Single-Glazed Clear
• Inside Woven Shade
• 2 Fritted Glass IG

10
Task 2b Overview

• Perform SHGC Tests
• Develop Statement of Work for SHGC Testing (NFRC
  Contract)
• Architectural Testing, Inc. in Fresno, CA (ATI)
  chosen as NFRC 201 Accredited Testing Laboratory
• SHGC Testing started October 6, 2008
• PI Visit ATI during the week of October 6-10, 2008

11
Task 2b Overview(Continued)

• Installation of Fenestration Attachments
• SHGC and U-Factor Tests on Identical Specimens
• Sometimes Difficult to Install Attachments at a
  Tilt
• Shade Materials Sag out of Co-planer Orientation
• Shade Supports shall have Minimum Impact on SHGG
  and U-Factor Testing
• Venetian Blinds
• Between Glazing use 2 Vertical Clear Acrylic
  Square Rods (1/8, ¼ ½) glued to Inside Glass
• Indoor use Tightly Strung Monofilament
• Woven Shades
• Mounted on ½ x ¾ Wooden Frame (Painters
  Canvas)
• Installation Verified by PI

12
Task 2b Overview(Continued)
13
Task 2b Overview(Continued)

• Instrumentation of Calorimeter and Test Specimens
• Added Temperature Sensors To Specimen
• Modified Means of Attaching Temperature Sensors
  to Glass
• Indicated Temperature Sensor Locations on Windows
• Modified Air Temperature Radiation Shield
• Verified Tracking
• Solar Time
• Off-Normal Indicator
• Need to Retrieve Atmospheric Data to Adjust Solar
  Spectrum

14
Task 2b Overview(Continued)
15
Task 2b Overview(Continued)
16
Task 2b Overview(Continued)

• Perform U-Factor Tests
• Develop RFP for U-Factor Testing (NFRC Contract)
• Primary NFRC 102 Laboratory (All Tests)
• Architectural Testing, Inc. in Fresno, CA (ATI)
• Secondary NFRC 102 Laboratories (Two Tests Each)
• Architectural Testing, Inc. in St. Paul, MI
• Architectural Testing, Inc. in York, PA
• U-Factor Testing started October 3, 2008
• PI Visit ATI during the week of October 6-10, 2008

17
Task 2b Overview(Continued)
18
Task 2c Overview

• Perform SHGC and U-Factor Simulations
• Develop RFP for SHGC Testing (NFRC Contract)
• Response from 2 Laboratories
• Carli, Inc.
• ETC Laboratories
• Carli, Inc. (Carli) Chosen as NFRC 100 and NFRC
  200 Simulation Laboratory
• Simulated as Tested
• As Installed in Solar Calorimeter or Thermal
  Chamber
• At Environmental Conditions Experienced During
  Testing
• Simulation of New Test Results
• Window Manufactures have donated THERM files
• Simulation of Old Test Results
• More Potential Comparisons than Expected
• Some Center-of-Glass only
• Negotiating Final Contract at this meeting

19
Current Tasks

• Follow-up with Optical Properties Test Results
  for addition to Shading Systems Library
• Shade Manufacturers Have Donated Test Results
• Start to Compile and Analyze Test Results
• Start Simulations...

20
A Happy Scientist!