01299nas a2200121 4500008004100000050001500041245008500056210006900141520084100210100002101051700003001072856007501102 1998 eng d aLBNL-4224100aValidation studies of the DOE-2 Building Energy Simulation Program. Final Report0 aValidation studies of the DOE2 Building Energy Simulation Progra3 a
This report documents many of the validation studies (Table 1) of the DOE-2 building energy analysis simulation program that have taken place since 1981. Results for several versions of the program are presented with the most recent study conducted in 1996 on version DOE-2.1E and the most distant study conducted in 1981 on version DOE-1.3. This work is part of an effort related to continued development of DOE-2, particularly in its use as a simulation engine for new specialized versions of the program such as the recently released RESFEN 3.1. RESFEN 3.1 is a program specifically dealing with analyzing the energy performance of windows in residential buildings. The intent in providing the results of these validation studies is to give potential users of the program a high degree of confidence in the calculated results.
1 aSullivan, Robert1 aWinkelmann, Frederick, C. uhttps://facades.lbl.gov/publications/validation-studies-doe-2-building01975nas a2200169 4500008004100000024001200041245007400053210006900127260003100196520140100227100001801628700002101646700002301667700002101690700002701711856006701738 1996 eng d aUC-160000aVisual Quality Assessment of Electrochromic and Conventional Glazings0 aVisual Quality Assessment of Electrochromic and Conventional Gla aFreiburg, Germanyc09/19963 aVariable transmission, switchable electrochromic glazings are compared to conventional static glazings using computer simulations to assess the daylighting quality of a commercial office environment where paper and computer tasks are performed. RADIANCE simulations were made for a west-facing commercial office space under clear and overcast sky conditions. This visualization tool was used to model different glazing types, to com-pute luminance and illuminance levels, and to generate a parametric set of photorealistic im-ages of typical interior views at various times of the day and year. Privacy and visual dis-play terminal (VDT) visibility is explored. Electrochromic glazings result in a more consis-tent glare-free daylit environment compared to their static counterparts. However, if the glazing is controlled to minimize glare or to maintain low interior daylight levels for critical visual tasks (e.g., VDT), occupants may object to the diminished quality of the outdoor view due to its low transmission (Tv=0.08) during those hours. RADIANCE proved to be a very powerful tool to better understand some of the design tradeoffs of this emerging glazing technology. Our ability to draw specific conclusions about the relative value of dif-ferent technologies or control strategies is limited by the lack of agreed upon criteria or standards for lighting quality and visibility.
1 aMoeck, Martin1 aLee, Eleanor, S.1 aRubin, Michael, D.1 aSullivan, Robert1 aSelkowitz, Stephen, E. uhttps://facades.lbl.gov/publications/visual-quality-assessment