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DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

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For glass doors treated as windows, the GLASS-CONDUCTANCE ofthe particular type of glass should be multiplied by theappropriate factor from the following table.GLASS CONDUCTANCE ADJUSTMENT FACTORS FOR GLASS DOORSWood FrameMetal FrameSingleGlassG-C*0.95G-C*1.0Double or TripleGl assG-C*1.0G-C*1.10KeywordGLASS-TYP E-CODESHADING-COEFRule:Ex amp lesThe following table illustrates the keyword entrydifferences for the two calculation methods of solar heatgain through windows.MethodTransmission and AbsorptionASHRAE Shading Coefficient Characteristicsnoyes1. Either GLASS-TYPE-CODE or SHADING-COEF may be entered, but not both.1. Using GLASS-TYPE-CODEThe window is double-pane, uncoated, insulating glass with heatabsorbing outer pane. The transmittance at normal incidence is 55per cent. The conductance is 0.63.From Table 111.1, for double-pane, uncoated glass, the closesttransmittance is 53 per cent, corresponding to GLASS-TYPE-CODE=5.The input is therefore:2. Using SHADING-COEFSOUTHGLASS = GLASS-TYPEPANES = 2GLASS-TYPE-CODE = 5GLASS-CONDUCTANCE = 0.63yesnoThe window is single-pane. The shading coefficient is 0.43.Default conductance is desired.NORTHGLASS = GLASS-TYPEPANES = 1SHADING-COEF = 0.43II 1. 92 (Revised 5/81)

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