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Re: [EnergyPlus_Support] Report Variable Definitions



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Richard Raustad wrote:

>Refer to the InputOutputReference document for a complete description:
>
>
>        Blind/Glass System Beam-Beam Solar Transmittance []
>
>The fraction of exterior beam solar radiation incident on an exterior 
>window with a blind (excluding window frame, if present) that is 
>transmitted through the blind/glass system as beam solar radiation. 
>Depends on various factors, including type of glass; solar incidence 
>angle; slat angle, width, separation, and thickness; and horizontal 
>solar profile angle (for blinds with horizontal slats) or vertical solar 
>profile angle (for blinds with vertical slats).
>
>
>        Blind/Glass System Diffuse-Diffuse Solar Transmittance []
>
>The fraction of exterior diffuse solar radiation incident on an exterior 
>window with a blind (excluding window frame, if present) that is 
>transmitted through the blind/glass system as diffuse solar radiation. 
>Depends on various factors, including type of glass and slat angle, 
>width, separation, thickness and reflectance. For blinds with a fixed 
>slat angle the transmittance value reported here will be constant.
>
>
>
>Kristin Field wrote:
>
>  
>
>>Can anyone tell me if there is a document that defines each report
>>variable? I couldn't find that in the I/O Reference or the
>>Engineering Reference. There are some report variables for which I'm
>>not sure exactly what is meant just by looking at the name.
>>
>>Specifically, I'm not sure what is meant by:
>>
>>"Blind/Glass System Beam-Beam Solar Transmittance"
>>(what is "beam-beam?" Is visible light being transmitted
>>for "transmittance," or is it heat, total energy? The number is
>>dimensionless in the .csv output - what is the numerator, and what is
>>the denominator?)
>>"Blind/Glass System Diffuse-Diffuse Solar Transmittance"
>>(what is "diffuse-diffuse?")
>>"Window System Solar Transmittance"
>>(what is the window "system?" - does it include the frame and
>>dividers? the blinds? As above, what are the numerator and
>>denominator for this dimensionless output?)
>>
>>Any help is appreciated. Thanks!
>>
>>--Kristin Field
>>    
>>


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