WINDOW Documentation

WINDOW Documentation

Specular Glazing Systems

NFRC THERM 6.3 / WINDOW 6.3 Simulation Manual July 2013:

  • Entire Manual (PDF)

Comparison of WINDOW 5 / THERM 5 and WINDOW 6 / THERM 6 Results for Specular Glazing Systems (PDF)

NFRC WINDOW 6 / THERM 6 Training for Specular Systems (Power Point Presentation, Oct/Nov 2010) (PDF)

Tutorials

Complex Glazing Systems

  • WINDOW 6.2 / THERM 6.2 Research Version User Manual (PDF)
    • Documents features in WINDOW6 and THERM 6 for modeling complex glazing systems
  • WINDOW 6.2 / THERM 6.2 Simulation Manual Chapter for Complex Glazing (Draft) (PDF)
    • This was used for NFRC Simulator training in June 2009, and includes detailed descriptions for modeling venetian blinds between glass and frits.
  • Complex Glazing Summary (PDF)
    • Presented at the Spring 2008 NFRC Meeting, Nashville, TN

Technical Documentation

Algorithm Documentation

WINDOW7 and THERM7 implement the ISO 15099 algorithms:

  • ISO 15099
    • The algorithms in WINDOW6 and THERM6 follow the procedures presented in ISO 15099:
    • "Thermal performance of windows, doors and shading devices - Detailed calculations."
    • See: ANSI Standards Store: ISO 15099:2003

In addition to implementing ISO 15099 algorithms in WINDOW7 and THERM7, we have added additional capabilities to WINDOW7.

The following reports and papers describe these additional capabilities and/or elaborate on ISO15099.

  • Deflection in Glazing Systems:
    • Thermal Performance of Deflected IGU (PDF)
    • July 16, 2012
  • Thermal Algorithm Documentation for THERM
    • Conrad 5 & Viewer 5 Technical and Programming Documentation (PDF)
    • June 20, 2006
  • Thermal Algorithm Documentation for WINDOW
    • TARCOG: Mathematical Models for Calculation of Thermal Performance of Glazing Systems with or without Shading Devices (PDF)
    • October 17, 2006
    • (Draft, still under review and revision)
  • Venetian Blind Algorithm Documentation
    • Calculation of Optical Properties for a Venetian Blind Type of Shading Device (PDF)
    • October 20, 2006
    • (Draft, still under review and revision)
  • Woven Shade Algorithm Documentation
    • Implementation of Woven Shade Method in Layeroptics.DLL (PDF)
    • November 9, 2006
    • (Draft, still under review and revision)
  • Bidirectional Optical Properties of Slat Shading: Comparison Between Raytracing and Radiosity Methods (PDF)
    • (Submitted to Solar Energy but not yet published)
  • Documentation for LBNL BSDF XML Format
    • Found in Section 6.4 of the WINDOW 6.1 / THERM 6.1 Research Version User Manual (PDF)
  • WINDOW BTDF Output File Documentation
    • Found in Section 6.3 of the WINDOW 6.1 / THERM 6.1 Research Version User Manual (PDF)
  • Verification Results
    • WINDOW 6 Verification Results (PDF)
    • June 12, 2006
    • (Draft, still under review and revision)
  • Joe Klems Matrix Method Publications
    • A New Method for Predicting the Solar Heat Gain of Complex Fenestration Systems. I. Overview and Derivation of the Matrix Layer Calculation 1993 (PDF)
    • A New Method for Predicting the Solar Heat Gain of Complex Fenestration Systems. II. Detailed Description of the Matrix Layer Calculation 1993 (PDF)
  • Frit Model Documentation
    • Optical Model of Fritted Glazing in WINDOW, 9/24/2012 (PDF)