DOE-2 Reference Manual Version 2.1 - DOE2.com

WIDTHLOCATIONCONSTRUCTIONMULTIPLIERSOLAR-FRACTIONis the dimension of the underground wall or underground floorparallel to the X axis in the surface coordinate system (seeSec. A.5 of this chapter). It is suggested that this keywordbe used only if Custom Weighting Factors are being used. IfCustom Weighting Factors are not being used, it is suggestedthat the user specify instead AREA according to its seconddefinition.is an alternative method for specifying the position of asurface. This is used in conjunction with the SHAPE = BOXkeyword (Sec. B.14 of this chapter). The following codewordsreplace HEIGHT, WIDTH, and TILT entries therebyreducing input quantity.FRONTBACKLEFTRIGHTTOPBOTTOMThese code-words correspond to the boundaries that definethe space.is the U-name of a previously defined CONSTRUCTIONinstruction that describes the LAYERS (response factors) orthe effective U-value of this UNDERGROUND-WALL orUNDERGROUND-FLOOR.For runs in which Custom Weighting Factors are to be created(LIBRARY-INPUT LOADS runs), the CONSTRUCTION defined by thiskeyword may be a delayed construction. In such a case, thedelayed construction may be left in the input deck for theregular INPUT LOADS run; LDL will simply substitute thecalculated U-value for the delayed construction.is analogous to MULIPLIER for INTERIOR-WALL.The following keywords are used if the user elects to useCustom Weighting Factors:accepts as input the fraction of the solar radiation,direct, diffuse, and reflected, coming through the glazingsin the space that is absorbed by this UNDERGROUND-WALL orUNDERGROUND-FLOOR. Note that this is the fraction ofradiation absorbed, not the fraction that actually entersthe space. For example, in a given space, the floor mayreceive .55 of the radiation, each of the walls .1, and theceiling .05. A CAUTION message will be issued if the sum ofthe SOLAR-FRACTIONs for a given space is not within 10 percent of 1.0, and the program will adjust the SOLAR-FRACTIONsso that their sum is 1.0. Each SOLAR-FRACTION will then beautomatically multiplied by a factor that accounts for theIII.119 (Revised 5/81)